diff --git a/2015/d01/ex1/ex1.py b/2015/d01/ex1/ex1.py
deleted file mode 100755
index 616d288..0000000
--- a/2015/d01/ex1/ex1.py
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import sys
-
-
-def solve(input: str) -> int:
-    directions = collections.Counter(input.strip())
-    return directions["("] - directions[")"]
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d01/ex1/input b/2015/d01/ex1/input
deleted file mode 100644
index f7beb58..0000000
--- a/2015/d01/ex1/input
+++ /dev/null
@@ -1 +0,0 @@
-((((()(()(((((((()))(((()((((()())(())()(((()((((((()((()(()(((()(()((())))()((()()())))))))))()((((((())((()))(((((()(((((((((()()))((()(())()((())((()(()))((()))()))()(((((()(((()()))()())((()((((())()())()((((())()(()(()(((()(())(()(())(((((((())()()(((())(()(()(()(())))(()((((())((()))(((()(()()(((((()()(()(((()(((((())()))()((()(()))()((()((((())((((())(()(((())()()(()()()()()(())((((())((())(()()))()((((())))((((()())()((((())((()())((())(())(((((()((((()(((()((((())(()(((()()))()))((((((()((())()())))(((()(()))(()()(()(((()(()))((()()()())((()()()(((())())()())())())((()))(()(()))(((((()(()(())((()(())(())()((((()())()))((((())(())((())())((((()(((())(())((()()((((()((((((()(())()()(()(()()((((()))(())()())()))(())))(())))())()()(())(()))()((()(()(())()()))(()())))))(()))(()()))(())(((((()(()(()()((())()())))))((())())((())(()(())((()))(())(((()((((((((()()()(()))()()(((()))()((()()(())(())())()(()(())))(((((()(())(())(()))))())()))(()))()(()(((((((()((((())))())())())())()((((((((((((((()()((((((()()()())())()())())())(())(())))())((()())((()(()))))))()))))))))))))))))())((())((())()()))))))(((()((()(()()))((())(()()))()()())))(())))))))(()(((())))())()())))()()(())()))()(()))())((()()))))(()))))()))(()()(())))))))()(((()))))()(()))(())())))))()))((()))((()))())(())))))))))((((())()))()))()))())(())()()(())))())))(()())()))((()()(())))(())((((((()(())((()(((()(()()(())))()))))))()))()(()((()))()(()))(()(((())((((())())(())(()))))))))())))))))())())))))())))))()()(((())()(()))))))))())))))(())()()()))()))()))(()(())()()())())))))))())()(()(()))))()()()))))())(()))))()()))))()())))))(((())()()))(()))))))))))()()))))()()()))))(()())())()()())()(()))))()(()))(())))))))(((((())(())())()()))()()))(())))))()(()))))(())(()()))()())()))()))()))()))))())()()))())())))(()))(()))))))())()(((())()))))))))()))()())))())))())))()))))))))))()()))(()()))))))(())()(()))))())(()))))(()))))(()())))))())())()()))))())()))))))))(()))))()))))))()(()())))))))()))())))())))())))())))))))())(()()))))))(()())())))()())()))))))))))))))())))()(())))()))())()()(())(()()))(())))())()())(()(()(()))))())))))))))))())(()))()))()))))(())()())()())))))))))))()()))))))))))))())())))))(()())))))))))))())(())))()))))))))())())(()))()))(())))()))()()(())()))))))()((((())()))())())))))()))()))))((()())()))))())))(())))))))))))))))))()))))()()())()))()()))))())()))((()())))())))(()))(()())))))))()))()))))(())))))))(())))))())()()(()))())()))()()))))())()()))))())()))())))))))(()))))()())()))))))))(()))())))(()))()))))(())()))())())(())())())))))))((((())))))()))()))()())()(())))()))()))()())(()())()()(()())()))))())())))))(()))()))))())(()()(())))))(())()()((())())))))(())(())))))))())))))))))()(())))))))()())())())()(()))))))))(()))))))))())()()))()(()))))))()))))))())))))))(())))()()(())()())))))(((())))()((())()))())))(()()))())(())())))()(((()())))))()(()()())))()()(()()(()()))())()(()()()))())()()))()())(()))))())))))())))(())()()))))(()))))(())(()))(())))))()()))()))))())()))()()(())())))((()))())()))))))()()))))((()(()))))()()))))))())))))())(()((()())))))))))))()())())))()))(()))))))(()))(())()())))(()))))))))())()()()()))))(()())))))))((())))()))(()))(())(())()())()))))))))(())))())))(()))()()))(()()))(()))())))()(())))())((()((()(())))((())))()))))((((())())()())))(())))()))))))())(()()((())))())()(()())))))(()())()))())))))))((())())))))))(()(()))())()()(()()(((()(((()())))))()))))))()(())(()()((()()(())()()))())()())()))()())())())))))))(((())))))))()()))))))(((())()))(()()))(()()))))(()(()()((((())()())((()()))))(()(())))))()((()()()())()()((()((()()))(()))(((()()()))(((())))()(((())()))))))((()(())())))(()())(((((()(()))(()((()))(()())()))))(()(()))()(()))(())(((())(()()))))()()))(((()))))(()()()()))())))((()()()(())()))()))))()()))()))))))((((((()()()))))())((()()(((()))))(()(())(()()())())())))()(((()()))(())((())))(()))(()()()())((())())())(()))))()))()((()(())()(()()(())(()))(())()))(())(()))))(())(())())(()()(()((()()((())))((()))()((())))(((()()()()((((()))(()()))()()()(((())((())())(()()(()()()))()((())(())()))())(((()()(())))()((()()())()())(()(())())(((())(())())((())(())()(((()()))(())))((())(()())())(())((()()()((((((())))((()(((((())()))()))(())(()()))()))(())()()))(())((()()())()()(()))())()((())))()((()()())((((()())((())())())((()((()))()))((())((()()(()((()()(((())(()()))))((()((())()(((())(()((())())((())(()((((((())())()(()())()(())(((())((((((()(())(()((()()()((()()(()()()())))()()(((((()()))()((((((()))()(()(()(()(((()())((()))())()((()))(())))()))()()))())()()))())((((())(()(()))(((((((())(((()(((((()(((()()((((())(((())())))(()()()(()(()))()))((((((()))((()(((()(())((()((((()((((((())(((((())))(((()(()))))(((()(((())()((())(()((()))(((()()(((())((((()(()(((((()))(((()(((((((()(()()()(()(()(()()())(())(((((()(())())()())(()(()(()))()(()()()())(()()(()((()))()((())())()(()))((())(()))()(()))()(((()(()(()((((((()()()()())()(((((()()(((()()()((()(((((()))((((((((()()()(((((()))))))(()()()(())(()))(()()))))((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\ No newline at end of file
diff --git a/2015/d01/ex2/ex2.py b/2015/d01/ex2/ex2.py
deleted file mode 100755
index 4383f4a..0000000
--- a/2015/d01/ex2/ex2.py
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-
-
-def solve(input: str) -> int:
-    BASEMENT = -1
-    current = 0
-    for i, c in enumerate(input, start=1):
-        current += 1 if c == "(" else -1
-        if current == BASEMENT:
-            return i
-    assert False  # Sanity check
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d01/ex2/input b/2015/d01/ex2/input
deleted file mode 100644
index f7beb58..0000000
--- a/2015/d01/ex2/input
+++ /dev/null
@@ -1 +0,0 @@
-((((()(()(((((((()))(((()((((()())(())()(((()((((((()((()(()(((()(()((())))()((()()())))))))))()((((((())((()))(((((()(((((((((()()))((()(())()((())((()(()))((()))()))()(((((()(((()()))()())((()((((())()())()((((())()(()(()(((()(())(()(())(((((((())()()(((())(()(()(()(())))(()((((())((()))(((()(()()(((((()()(()(((()(((((())()))()((()(()))()((()((((())((((())(()(((())()()(()()()()()(())((((())((())(()()))()((((())))((((()())()((((())((()())((())(())(((((()((((()(((()((((())(()(((()()))()))((((((()((())()())))(((()(()))(()()(()(((()(()))((()()()())((()()()(((())())()())())())((()))(()(()))(((((()(()(())((()(())(())()((((()())()))((((())(())((())())((((()(((())(())((()()((((()((((((()(())()()(()(()()((((()))(())()())()))(())))(())))())()()(())(()))()((()(()(())()()))(()())))))(()))(()()))(())(((((()(()(()()((())()())))))((())())((())(()(())((()))(())(((()((((((((()()()(()))()()(((()))()((()()(())(())())()(()(())))(((((()(())(())(()))))())()))(()))()(()(((((((()((((())))())())())())()((((((((((((((()()((((((()()()())())()())())())(())(())))())((()())((()(()))))))()))))))))))))))))())((())((())()()))))))(((()((()(()()))((())(()()))()()())))(())))))))(()(((())))())()())))()()(())()))()(()))())((()()))))(()))))()))(()()(())))))))()(((()))))()(()))(())())))))()))((()))((()))())(())))))))))((((())()))()))()))())(())()()(())))())))(()())()))((()()(())))(())((((((()(())((()(((()(()()(())))()))))))()))()(()((()))()(()))(()(((())((((())())(())(()))))))))())))))))())())))))())))))()()(((())()(()))))))))())))))(())()()()))()))()))(()(())()()())())))))))())()(()(()))))()()()))))())(()))))()()))))()())))))(((())()()))(()))))))))))()()))))()()()))))(()())())()()())()(()))))()(()))(())))))))(((((())(())())()()))()()))(())))))()(()))))(())(()()))()())()))()))()))()))))())()()))())())))(()))(()))))))())()(((())()))))))))()))()())))())))())))()))))))))))()()))(()()))))))(())()(()))))())(()))))(()))))(()())))))())())()()))))())()))))))))(()))))()))))))()(()())))))))()))())))())))())))())))))))())(()()))))))(()())())))()())()))))))))))))))())))()(())))()))())()()(())(()()))(())))())()())(()(()(()))))())))))))))))())(()))()))()))))(())()())()())))))))))))()()))))))))))))())())))))(()())))))))))))())(())))()))))))))())())(()))()))(())))()))()()(())()))))))()((((())()))())())))))()))()))))((()())()))))())))(())))))))))))))))))()))))()()())()))()()))))())()))((()())))())))(()))(()())))))))()))()))))(())))))))(())))))())()()(()))())()))()()))))())()()))))())()))())))))))(()))))()())()))))))))(()))())))(()))()))))(())()))())())(())())())))))))((((())))))()))()))()())()(())))()))()))()())(()())()()(()())()))))())())))))(()))()))))())(()()(())))))(())()()((())())))))(())(())))))))())))))))))()(())))))))()())())())()(()))))))))(()))))))))())()()))()(()))))))()))))))())))))))(())))()()(())()())))))(((())))()((())()))())))(()()))())(())())))()(((()())))))()(()()())))()()(()()(()()))())()(()()()))())()()))()())(()))))())))))())))(())()()))))(()))))(())(()))(())))))()()))()))))())()))()()(())())))((()))())()))))))()()))))((()(()))))()()))))))())))))())(()((()())))))))))))()())())))()))(()))))))(()))(())()())))(()))))))))())()()()()))))(()())))))))((())))()))(()))(())(())()())()))))))))(())))())))(()))()()))(()()))(()))())))()(())))())((()((()(())))((())))()))))((((())())()())))(())))()))))))())(()()((())))())()(()())))))(()())()))())))))))((())())))))))(()(()))())()()(()()(((()(((()())))))()))))))()(())(()()((()()(())()()))())()())()))()())())())))))))(((())))))))()()))))))(((())()))(()()))(()()))))(()(()()((((())()())((()()))))(()(())))))()((()()()())()()((()((()()))(()))(((()()()))(((())))()(((())()))))))((()(())())))(()())(((((()(()))(()((()))(()())()))))(()(()))()(()))(())(((())(()()))))()()))(((()))))(()()()()))())))((()()()(())()))()))))()()))()))))))((((((()()()))))())((()()(((()))))(()(())(()()())())())))()(((()()))(())((())))(()))(()()()())((())())())(()))))()))()((()(())()(()()(())(()))(())()))(())(()))))(())(())())(()()(()((()()((())))((()))()((())))(((()()()()((((()))(()()))()()()(((())((())())(()()(()()()))()((())(())()))())(((()()(())))()((()()())()())(()(())())(((())(())())((())(())()(((()()))(())))((())(()())())(())((()()()((((((())))((()(((((())()))()))(())(()()))()))(())()()))(())((()()())()()(()))())()((())))()((()()())((((()())((())())())((()((()))()))((())((()()(()((()()(((())(()()))))((()((())()(((())(()((())())((())(()((((((())())()(()())()(())(((())((((((()(())(()((()()()((()()(()()()())))()()(((((()()))()((((((()))()(()(()(()(((()())((()))())()((()))(())))()))()()))())()()))())((((())(()(()))(((((((())(((()(((((()(((()()((((())(((())())))(()()()(()(()))()))((((((()))((()(((()(())((()((((()((((((())(((((())))(((()(()))))(((()(((())()((())(()((()))(((()()(((())((((()(()(((((()))(((()(((((((()(()()()(()(()(()()())(())(((((()(())())()())(()(()(()))()(()()()())(()()(()((()))()((())())()(()))((())(()))()(()))()(((()(()(()((((((()()()()())()(((((()()(((()()()((()(((((()))((((((((()()()(((((()))))))(()()()(())(()))(()()))))((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\ No newline at end of file
diff --git a/2015/d02/ex1/ex1.py b/2015/d02/ex1/ex1.py
deleted file mode 100755
index 9127151..0000000
--- a/2015/d02/ex1/ex1.py
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> tuple[int, int, int]:
-        x, y, z = map(int, input.split("x"))
-        return x, y, z
-
-    def parse(input: str) -> list[tuple[int, int, int]]:
-        return [parse_line(line) for line in input.splitlines()]
-
-    def wrapping_paper(x: int, y: int, z: int) -> int:
-        slack = min(x * y, y * z, z * x)
-        return 2 * (x * y + y * z + z * x) + slack
-
-    presents = parse(input)
-    return sum(wrapping_paper(*present) for present in presents)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d02/ex1/input b/2015/d02/ex1/input
deleted file mode 100644
index 2f04474..0000000
--- a/2015/d02/ex1/input
+++ /dev/null
@@ -1,1000 +0,0 @@
-20x3x11
-15x27x5
-6x29x7
-30x15x9
-19x29x21
-10x4x15
-1x26x4
-1x5x18
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-29x23x30
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diff --git a/2015/d02/ex2/ex2.py b/2015/d02/ex2/ex2.py
deleted file mode 100755
index b28720b..0000000
--- a/2015/d02/ex2/ex2.py
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> tuple[int, int, int]:
-        x, y, z = map(int, input.split("x"))
-        return x, y, z
-
-    def parse(input: str) -> list[tuple[int, int, int]]:
-        return [parse_line(line) for line in input.splitlines()]
-
-    def ribbon(x: int, y: int, z: int) -> int:
-        bow = x * y * z
-        return 2 * min(x + y, y + z, z + x) + bow
-
-    presents = parse(input)
-    return sum(ribbon(*present) for present in presents)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d02/ex2/input b/2015/d02/ex2/input
deleted file mode 100644
index 2f04474..0000000
--- a/2015/d02/ex2/input
+++ /dev/null
@@ -1,1000 +0,0 @@
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diff --git a/2015/d03/ex1/ex1.py b/2015/d03/ex1/ex1.py
deleted file mode 100755
index ef5bf4b..0000000
--- a/2015/d03/ex1/ex1.py
+++ /dev/null
@@ -1,55 +0,0 @@
-#!/usr/bin/env python
-
-import enum
-import sys
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-
-class Direction(enum.StrEnum):
-    NORTH = "^"
-    EAST = ">"
-    SOUTH = "v"
-    WEST = "<"
-
-    def apply(self, p: Point) -> Point:
-        match self:
-            case Direction.NORTH:
-                dx, dy = -1, 0
-            case Direction.EAST:
-                dx, dy = 0, 1
-            case Direction.SOUTH:
-                dx, dy = 1, 0
-            case Direction.WEST:
-                dx, dy = 0, -1
-        return Point(p.x + dx, p.y + dy)
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> list[Direction]:
-        return [Direction(c) for c in input.strip()]
-
-    def distribute_presents(moves: list[Direction]) -> set[Point]:
-        pos = Point(0, 0)
-        seen = {pos}
-        for move in moves:
-            pos = move.apply(pos)
-            seen.add(pos)
-        return seen
-
-    moves = parse(input)
-    presents = distribute_presents(moves)
-    return len(presents)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d03/ex1/input b/2015/d03/ex1/input
deleted file mode 100644
index 03504fc..0000000
--- a/2015/d03/ex1/input
+++ /dev/null
@@ -1 +0,0 @@
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\ No newline at end of file
diff --git a/2015/d03/ex2/ex2.py b/2015/d03/ex2/ex2.py
deleted file mode 100755
index b81e49e..0000000
--- a/2015/d03/ex2/ex2.py
+++ /dev/null
@@ -1,55 +0,0 @@
-#!/usr/bin/env python
-
-import enum
-import sys
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-
-class Direction(enum.StrEnum):
-    NORTH = "^"
-    EAST = ">"
-    SOUTH = "v"
-    WEST = "<"
-
-    def apply(self, p: Point) -> Point:
-        match self:
-            case Direction.NORTH:
-                dx, dy = -1, 0
-            case Direction.EAST:
-                dx, dy = 0, 1
-            case Direction.SOUTH:
-                dx, dy = 1, 0
-            case Direction.WEST:
-                dx, dy = 0, -1
-        return Point(p.x + dx, p.y + dy)
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> list[Direction]:
-        return [Direction(c) for c in input.strip()]
-
-    def distribute_presents(moves: list[Direction]) -> set[Point]:
-        pos = Point(0, 0)
-        seen = {pos}
-        for move in moves:
-            pos = move.apply(pos)
-            seen.add(pos)
-        return seen
-
-    moves = parse(input)
-    presents = distribute_presents(moves[::2]) | distribute_presents(moves[1::2])
-    return len(presents)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d03/ex2/input b/2015/d03/ex2/input
deleted file mode 100644
index 03504fc..0000000
--- a/2015/d03/ex2/input
+++ /dev/null
@@ -1 +0,0 @@
-^><^>>>^<^v<v^^vv^><<^<><<vv^<>^<^v>^vv<>v><vv^^<>>^^^v<<vv><<^>^<^v<^>^v><<<v^<v<<<v<<vv<v<^><^>><>v>v^<<v^^<^v<><^>^<<^^^>v>>v^^<v>>^>vv><v>>^>>v^>^v>^<^^v>^>^^v<v>^^<v<>>v^^v><^><^<<>v^<^<^v<v>v^>>>v^v^>^<>^v<^^vv<v>^>^<>^^<vv^<><<v<^<^^>vv<>^>v<^>^v>v^>^v<>^><>><vv<>v^v<><>v^v>>>>v^^>^><^^<v<^><^<v>>^v^v<>v<<<^<<vvvv<<v^vv^>v^^^<^^^<v>>v<^v>>>>>v<^^^^>v<^<><v>>>>><v>>v^vvvv^^<v^<>^v<^v^>v><^>^v<<>>vv^>v>v^^>vv^<^vvv<>><>><><^^^<v<>^<^^^<v><^v>>v>^v<v^vv^<>^^^>v^^^v>>^v^^<^>>^>^<<v>>>^^<>>^vv>v^<^>>>><v<><><^^v<><<<<^^<>>^<vvv^><>v<v<<<<><v<<v>v<v^><vv<v^>^<^>v^^><^v>^^>v<>^v^<>^vv^><v^^vv>vvv>v>^<vv^>>^>>^>><>>>^^^^v<vv>^<>v^^><v^>^<>v<^^v><v<<><^v><>^^^^^v^v>>^^v><<><<vv>^^^^><^>v>><<<^v>v^^>^v^<^^v>v<^<<>>^v<<<v<<>>v<^v^><vv<v^v>v^<v>><v>^v<<<vv^>v<v>>v>>v><v><v^>v^^v>^v^>>>><>^>v>^v^>>>>v^<<vv<^v><<>v<v^<^^<<v<^v^^v^>vv><vv<v^<^>><^^>^<><^^<v<><^v^v^<^^>^<v><^<v>v^<<<^^v<v>^v>>><>^^>vv<<^v^<<<<^^>>>v>v<<<>^^>>>v>^>v>vv<<>^<^><v^>^^<^<v<<v<^>>^v^<vvv><>v^><<v>^^<v^vv^^^<vvv^<^>^>vv>><^v<^<<v<><<><<^^<><><vv>v>^<v>>^<>>^^v>vv^<^^v>><^vv^<<v^^><<>vv<v<><v<><v^^^v^v>^v<^<>v^^>><>^<^<v^<v^v^>v<<<^<<^>>>^^<^^v>v^<v>vvvv>v<>><^>^<<<<v^<v<>v^^^v<>v>^<v<<^^v^^<>^<<v^^<^<v>v>>v>>v^>^<vv<<<<<^<><>v><>>>v^>^v<^<><<v<^v^^<^<><^>^^^>^><>^><<vv>^<>vv<<v^v<<<<<>>>v<vv>^v>^>^>^<^><>v<><>>>^^<v>^<^v>>^<><v^><v^>>>v<v^^vvv^><v<v>v^>vvvv>>><^>v<>^^^>v>>v^<v<>v^>^<v^>^<<^>^>>v<<><<v^^>>v^<v^<^v^>^>v^><<^<v>v^<v>>^^<<v>v><<<^v^<>^<>^>>^<<v>^^<>^v<>v^>>><<v>><v^>^><v^<><v><>><v^<>vv>v^<^^^>v>^^<vv>>^v<><>>><>><^<>>v>v^^>^^<^^>^>>v>vv^^v<^<^v><vv<v<^>><<vvv<<><^>^v>^^^<<>v^<v<v><<v>^^v<<<>^^vv<^>vv>^>^<><<>vv<^>v^vv>^^^v><<^vv>^v<><v^^^^v^>vv^^<^<>^^v^<^vv<v<vv<>v>v^^<>^^>^^>^<><<^v>^><^^vvvv<><>^<v^^>v<>^><>v>><>vv^<<><<>><>v<^>^v>>^^v><<<>>^<^v^<v<<<v^>^^<^<><><^><<<<^<vv><v<<><vvv^^><vv>^<<vv<<<^v<>>><><>>v><<<v>vvvv^^vv<v>><<^v^vvv><><vv>v><>v<<<^<v^>><^^>v^<v>><v>^^^v^v>><<<v<^^>>^v<>v^<vv^^<<v<v>v<<<<^^^v^v<<>>>v>>vv>^^<><^v<v><>>v^>>>>>^>v^v^<^v^v^vvv>v<v<^>vv^<<v>vv>>v^^vv<^v>>>>vv<>v<>^^vv^<v>v^>>vvv<<<v<<^vv^^^^>v>v>^><<<^>v^><v<^<<<v>^v^^^><<><<<^^<^^<>^<v>^<v<<v<^^vv>v<^v><v><v<>^v<^<v<^<v^v><v>><v<v<<>^<v<>>><>^v^v<<^><v^<<v<v^>^>v><^>^vv^^<v<v<vv<v>^v^v^>^<<>>>>>v^<>^>v^vv^><<>>^^<>v^><v>^vvv^>v^v><>^><<>v>v<^<^><^^vv<<><>>v>>v><vv>>^v<<>^vv<>^vv>v>v>^>^>>><><<>v<v>^<<^v^^<<<><v>>vv<^<vv<vv^<<v<<^v><<>v<^^^<<^v^>^v>^^^v^v>>>v>v^v>^>^vv<^^<<vv^>^<<<vv>v^<><<^vvv^^><>vv^v>v>^><<^^^^vvv^<vvv>><^v<^>^<>>^<v<<vv>>><v>vv^<>><v^<v>^v>^>v>^<^<^^^<<vvvv^>>>>>>>v><vv>^<>^^v^><>><^v^^<v^v<<<<v^>><>v^v<vv<><^<<<<^>^^>vv>><^v<v^v<<>^vvv>v^^><^^<^<>>^^v^vv<>v<^<<<v^^^><v<vv<<>v>v<>^v^><v^vv^v^^v<^^v^^v><>v<^v>><<^<^v^>><<vv<<^>^<<v^<>^><>v><vv^v>>^<v<<<^>vv<^v>^>v<<v>^>>^>>v^<v<v>>^v<^v^v><<><>^><<<><v<vvvv<v^<v^v><>^<>^^^^v>^>^vvvvv>v>>v><<vv<<v<><<^><<^v><<v<<<v><vv<^>^v>>>>^v<^v<<>>^>^<<vv^<^>v>><<^>^>^v><><>^><<v<>v^><<^v^<^^><^^v^<<^v^^>>^v^<^><vv>v^^<<^^^<><>^>v^v>v^>^v^vv>^^>>>>^^<^>>>^^v<vv<><^^<vvv<^^^vv>v<v<v>><<<>^>^^>^>^v<<<<>>^<<>><v>>v>^^<^v<>v<>v^>v^><^<^^><v^^v>^^vv<v<<>><<vv<>>v>^<<<<v<<v>^><^^<^<^<v^<<^^v>^v<^>v^v^<v^vv^>^^><^>v^v>>^^v^><vv<v<v<v>>>>><<><v><v^v^<v^<^^<v<>^>v>v<>>>v>^^^^>><v^v^^v<<<>v^<<^<v>>>><^v^<<><v<>>v><><v<v^v>^v^^<v<^<^^v>><<vv<<vv><>>^>^>vv<^<>^vvv^v<v^^<>v^v>^^<<<<<>^v^>^<>v^^<>v^v<vv>^<>vv^<^vv>><v^^vvvvv>><<>v<vv^<^<vv^v^<>^^<v^<vv^<v^v^v<<^>^>^>^^>>>vvv>^>v>v>>>^>vv^><>^><>v>^^<v^>^><<v>><<<>>v<vvvv^>^v<^<>^<v>^<>^^<<><>^v<><>>>^vv<^<<^<^v>v<<<<<^^v<^v<><v<<><^>v>^v>>^v^><^^^^v<><><>vv^<>vv<^v<^^><v^<^><^^v^v^<^^<<><v>v<v<v^<<^v><>v^v<^>vvv><<^v>>v><><v<<^>>>v<^>>v>^<>><>^<v^v^<vv<<^>v<^^>^<^v<^<<^^v<>>^>^>^v^^v^v<v^^vv^<v>>v><vv^vv>v<>v^>v^^>^^>><v><v^<<><<>><<^^>><^v<v<><<><<><v<v^<^<v>>>><v^^v^^>>>^^^^^<<vv<^><>^<<<vv^^^>^><<<v<^v>^<v<^>^vvv<<>vv><<>v>v^v>>>>>^<>><^^^><<<<v><<vv>>>v<^<vv^v^<<v>>>>^^vvv>v<>><v>>>v>>^v^vvv<<>vvv<<^^^<>vv^^v<<>^^^>>^<^v^<^^>v^><v>>^<<^v<<vv<vv>v^>>^>v^><^><>^>>>vv>><^^^>vv<<^^vv><^<>^>^^<^<>>^vv^>>^v><>v^>>><<<^^<^>^>v<^>^<^^<>>><^^<>^v^<<vvv<v><>vvv><v>v^v<<^<v>^^><<^vv^v>v>v<<^v^<<<>^><><vvv>v>^vv^v<>vv^>^^<^>^>v^^<vv^>v><v<<<><>>^v<^<><><^<v^^<<^<v>vv<><<>v^<v^>^>^^<><<>^<^<<v^^v<v^<><<>v>><^<<>^>^v^v<v^v><^>>^v<^>v<<>^^^<^v>>>^<v>vvvv<<v^<^^>vvvv>v<>v<v><vvvvv>^<><>vvv<>^<<>^>>>>v^<^<><^v>v^>>v><>^><<v^>^<<>^>^v^<v^^>>^v><v>^<v><>v^<^^>v>^>>>v^v>>>^<>^<>>>>>v>>vv^v<><<<><><v><<vv<<v<><>>vv<^<vv>^v<<>v^v<^v<><v>>^v>>vvv^^v>>v>^>^>v><v><^>^^<<>^v<^<<<<^>v<^>>v^<^v>^v<<>^>^vvv<^^vv>^vv>vv<>>v>v<v>>v^<<<<<^^v^>v>^<<<v^v>>v<v><vvv><v>^<vv><<>>^<^>^^<>>>>^<^v<>v^^>^<^^v<^><>><v>>^v^vv<^v<^><<vvv<>><>><^^>^<^v^<^<>v<<<^v>v^^^<>v^<v^>^v^>><>^^<v<^><<^^v^<>^<^vv>>><^v><v^>vv<^v<<<v^>>v>v^v>^<v>v<^<>v^vvv>^vv<<<<v><^><v>>^^>><^v><<^>v^^<<v^^<^<><<<<>^<v<^v^>v<<^^>v<<<<<vvv<v<^>^>^>^>>^>>>v^<<v>>^^v><vv<^v<v<^^^>>>^vvv<^v<>>>vv>^^><^v>vv^>>v>v^<>^<vv>^>^<<^>^^^>>^vv>^^>vvvv<>>^^^^>>>v>v^^>vv>vv^<<>^><^<v^vvvv><v<><v>><<<v<v<<^v><vv^vv^<>>>^>^<v<^v<>><^<vv^^><v>v^>v^<><v^vvv>^>v^^v^>^^>v<<<<^<<^>>v>v^^^<<<v>>>^^v>v<v><<<<^^^v>^vv^>><>^v<v<<^^<<<<><>>>v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\ No newline at end of file
diff --git a/2015/d04/ex1/ex1.py b/2015/d04/ex1/ex1.py
deleted file mode 100755
index 47e0280..0000000
--- a/2015/d04/ex1/ex1.py
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/usr/bin/env python
-
-import hashlib
-import itertools
-import sys
-
-
-def solve(input: str) -> int:
-    key = input.strip()
-    for i in itertools.count(1):
-        hash = hashlib.md5((key + str(i)).encode()).hexdigest()
-        if hash.startswith("00000"):
-            return i
-    assert False  # Sanity check
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d04/ex1/input b/2015/d04/ex1/input
deleted file mode 100644
index d75e0dc..0000000
--- a/2015/d04/ex1/input
+++ /dev/null
@@ -1 +0,0 @@
-yzbqklnj
diff --git a/2015/d04/ex2/ex2.py b/2015/d04/ex2/ex2.py
deleted file mode 100755
index 8ec99f7..0000000
--- a/2015/d04/ex2/ex2.py
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/usr/bin/env python
-
-import hashlib
-import itertools
-import sys
-
-
-def solve(input: str) -> int:
-    key = input.strip()
-    for i in itertools.count(1):
-        hash = hashlib.md5((key + str(i)).encode()).hexdigest()
-        if hash.startswith("000000"):
-            return i
-    assert False  # Sanity check
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d04/ex2/input b/2015/d04/ex2/input
deleted file mode 100644
index d75e0dc..0000000
--- a/2015/d04/ex2/input
+++ /dev/null
@@ -1 +0,0 @@
-yzbqklnj
diff --git a/2015/d05/ex1/ex1.py b/2015/d05/ex1/ex1.py
deleted file mode 100755
index 48cf3f8..0000000
--- a/2015/d05/ex1/ex1.py
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import sys
-
-
-def solve(input: str) -> int:
-    def is_nice(input: str) -> bool:
-        counts = collections.Counter(input)
-        if sum(counts[c] for c in "aeiou") < 3:
-            return False
-        if not any((c + c) in input for c in (chr(ord("a") + i) for i in range(26))):
-            return False
-        for bad in ("ab", "cd", "pq", "xy"):
-            if bad in input:
-                return False
-        return True
-
-    return sum(map(is_nice, input.splitlines()))
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d05/ex1/input b/2015/d05/ex1/input
deleted file mode 100644
index a9b6e77..0000000
--- a/2015/d05/ex1/input
+++ /dev/null
@@ -1,1000 +0,0 @@
-sszojmmrrkwuftyv
-isaljhemltsdzlum
-fujcyucsrxgatisb
-qiqqlmcgnhzparyg
-oijbmduquhfactbc
-jqzuvtggpdqcekgk
-zwqadogmpjmmxijf
-uilzxjythsqhwndh
-gtssqejjknzkkpvw
-wrggegukhhatygfi
-vhtcgqzerxonhsye
-tedlwzdjfppbmtdx
-iuvrelxiapllaxbg
-feybgiimfthtplui
-qxmmcnirvkzfrjwd
-vfarmltinsriqxpu
-oanqfyqirkraesfq
-xilodxfuxphuiiii
-yukhnchvjkfwcbiq
-bdaibcbzeuxqplop
-ivegnnpbiyxqsion
-ybahkbzpditgwdgt
-dmebdomwabxgtctu
-ibtvimgfaeonknoh
-jsqraroxudetmfyw
-dqdbcwtpintfcvuz
-tiyphjunlxddenpj
-fgqwjgntxagidhah
-nwenhxmakxqkeehg
-zdoheaxqpcnlhnen
-tfetfqojqcdzlpbm
-qpnxkuldeiituggg
-xwttlbdwxohahwar
-hjkwzadmtrkegzye
-koksqrqcfwcaxeof
-wulwmrptktliyxeq
-gyufbedqhhyqgqzj
-txpunzodohikzlmj
-jloqfuejfkemcrvu
-amnflshcheuddqtc
-pdvcsduggcogbiia
-yrioavgfmeafjpcz
-uyhbtmbutozzqfvq
-mwhgfwsgyuwcdzik
-auqylgxhmullxpaa
-lgelzivplaeoivzh
-uyvcepielfcmswoa
-qhirixgwkkccuzlp
-zoonniyosmkeejfg
-iayfetpixkedyana
-ictqeyzyqswdskiy
-ejsgqteafvmorwxe
-lhaiqrlqqwfbrqdx
-ydjyboqwhfpqfydc
-dwhttezyanrnbybv
-edgzkqeqkyojowvr
-rmjfdwsqamjqehdq
-ozminkgnkwqctrxz
-bztjhxpjthchhfcd
-vrtioawyxkivrpiq
-dpbcsznkpkaaclyy
-vpoypksymdwttpvz
-hhdlruwclartkyap
-bqkrcbrksbzcggbo
-jerbbbnxlwfvlaiw
-dwkasufidwjrjfbf
-kkfxtjhbnmqbmfwf
-vmnfziwqxmioukmj
-rqxvcultipkecdtu
-fhmfdibhtjzkiqsd
-hdpjbuzzbyafqrpd
-emszboysjuvwwvts
-msyigmwcuybfiooq
-druyksfnbluvnwoh
-fvgstvynnfbvxhsx
-bmzalvducnqtuune
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diff --git a/2015/d05/ex2/ex2.py b/2015/d05/ex2/ex2.py
deleted file mode 100755
index 8245c65..0000000
--- a/2015/d05/ex2/ex2.py
+++ /dev/null
@@ -1,42 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import itertools
-import sys
-from collections.abc import Iterable, Iterator
-from typing import TypeVar
-
-T = TypeVar("T")
-
-
-def sliding_window(iterable: Iterable[T], n: int) -> Iterator[tuple[T, ...]]:
-    iterator = iter(iterable)
-    window = collections.deque(itertools.islice(iterator, n - 1), maxlen=n)
-    for x in iterator:
-        window.append(x)
-        yield tuple(window)
-
-
-def solve(input: str) -> int:
-    def is_nice(input: str) -> bool:
-        if not any(
-            ab in rest
-            for ab, rest in (
-                (input[i : i + 2], input[i + 2 :]) for i in range(len(input) - 1)
-            )
-        ):
-            return False
-        if not any(a == c for a, _, c in sliding_window(input, 3)):
-            return False
-        return True
-
-    return sum(map(is_nice, input.splitlines()))
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d05/ex2/input b/2015/d05/ex2/input
deleted file mode 100644
index a9b6e77..0000000
--- a/2015/d05/ex2/input
+++ /dev/null
@@ -1,1000 +0,0 @@
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diff --git a/2015/d06/ex1/ex1.py b/2015/d06/ex1/ex1.py
deleted file mode 100755
index c39cb14..0000000
--- a/2015/d06/ex1/ex1.py
+++ /dev/null
@@ -1,70 +0,0 @@
-#!/usr/bin/env python
-
-import enum
-import itertools
-import sys
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-
-class Op(enum.StrEnum):
-    TURN_ON = "on"
-    TOGGLE = "toggle"
-    TURN_OFF = "off"
-
-
-class Instruction(NamedTuple):
-    op: Op
-    a: Point
-    b: Point
-
-    @classmethod
-    def from_str(cls, input: str) -> "Instruction":
-        split_input = input.split()
-        raw_a, raw_b = split_input[-3], split_input[-1]
-        op = Op(split_input[1]) if split_input[0] == "turn" else Op(split_input[0])
-        return Instruction(
-            op,
-            Point(*map(int, raw_a.split(","))),
-            Point(*map(int, raw_b.split(","))),
-        )
-
-    def apply(self, screen: set[Point]) -> set[Point]:
-        points = {
-            Point(x, y)
-            for x, y in itertools.product(
-                range(self.a.x, self.b.x + 1),
-                range(self.a.y, self.b.y + 1),
-            )
-        }
-        match self.op:
-            case Op.TURN_ON:
-                return screen | points
-            case Op.TOGGLE:
-                return screen ^ points
-            case Op.TURN_OFF:
-                return screen - points
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> list[Instruction]:
-        return [Instruction.from_str(line) for line in input.splitlines()]
-
-    instructions = parse(input)
-    screen: set[Point] = set()
-    for instr in instructions:
-        screen = instr.apply(screen)
-    return len(screen)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d06/ex1/input b/2015/d06/ex1/input
deleted file mode 100644
index df10465..0000000
--- a/2015/d06/ex1/input
+++ /dev/null
@@ -1,300 +0,0 @@
-turn on 489,959 through 759,964
-turn off 820,516 through 871,914
-turn off 427,423 through 929,502
-turn on 774,14 through 977,877
-turn on 410,146 through 864,337
-turn on 931,331 through 939,812
-turn off 756,53 through 923,339
-turn off 313,787 through 545,979
-turn off 12,823 through 102,934
-toggle 756,965 through 812,992
-turn off 743,684 through 789,958
-toggle 120,314 through 745,489
-toggle 692,845 through 866,994
-turn off 587,176 through 850,273
-turn off 674,321 through 793,388
-toggle 749,672 through 973,965
-turn on 943,30 through 990,907
-turn on 296,50 through 729,664
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-toggle 171,31 through 688,88
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-turn on 119,662 through 760,838
-toggle 378,775 through 526,852
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-turn on 410,478 through 985,753
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-turn off 218,675 through 972,911
-toggle 249,291 through 350,960
-turn off 556,80 through 967,675
-toggle 609,148 through 968,279
-toggle 217,605 through 961,862
-toggle 407,177 through 548,910
-toggle 400,936 through 599,938
-turn off 721,101 through 925,455
-turn on 268,631 through 735,814
-toggle 549,969 through 612,991
-toggle 553,268 through 689,432
-turn off 817,668 through 889,897
-toggle 801,544 through 858,556
-toggle 615,729 through 832,951
-turn off 427,477 through 958,948
-turn on 164,49 through 852,946
-turn on 542,449 through 774,776
-turn off 923,196 through 980,446
-toggle 90,310 through 718,846
-turn off 657,215 through 744,252
-turn off 800,239 through 811,712
-turn on 502,90 through 619,760
-toggle 649,512 through 862,844
-turn off 334,903 through 823,935
-turn off 630,233 through 839,445
-turn on 713,67 through 839,865
-turn on 932,50 through 982,411
-turn off 480,729 through 984,910
-turn on 100,219 through 796,395
-turn on 758,108 through 850,950
-turn off 427,276 through 439,938
-turn on 178,284 through 670,536
-toggle 540,27 through 625,102
-turn off 906,722 through 936,948
-toggle 345,418 through 859,627
-toggle 175,775 through 580,781
-toggle 863,28 through 929,735
-turn off 824,858 through 905,973
-toggle 752,312 through 863,425
-turn on 985,716 through 988,852
-turn off 68,504 through 763,745
-toggle 76,209 through 810,720
-turn off 657,607 through 676,664
-toggle 596,869 through 896,921
-turn off 915,411 through 968,945
-turn off 368,39 through 902,986
-turn on 11,549 through 393,597
-turn off 842,893 through 976,911
-toggle 274,106 through 581,329
-toggle 406,403 through 780,950
-toggle 408,988 through 500,994
-toggle 217,73 through 826,951
-turn on 917,872 through 961,911
-toggle 394,34 through 510,572
-toggle 424,603 through 583,626
-toggle 106,159 through 755,738
-turn off 244,610 through 472,709
-turn on 350,265 through 884,690
-turn on 688,184 through 928,280
-toggle 279,443 through 720,797
-turn off 615,493 through 888,610
-toggle 118,413 through 736,632
-turn on 798,782 through 829,813
-turn off 250,934 through 442,972
-turn on 68,503 through 400,949
-toggle 297,482 through 313,871
-toggle 710,3 through 839,859
-turn on 125,300 through 546,888
-toggle 482,39 through 584,159
-turn off 536,89 through 765,962
-turn on 530,518 through 843,676
-turn on 994,467 through 994,676
-turn on 623,628 through 744,927
-toggle 704,912 through 837,983
-turn on 154,364 through 517,412
-toggle 344,409 through 780,524
-turn off 578,740 through 725,879
-turn on 251,933 through 632,957
-turn on 827,705 through 971,789
-toggle 191,282 through 470,929
-toggle 324,525 through 446,867
-toggle 534,343 through 874,971
-toggle 550,650 through 633,980
-toggle 837,404 through 881,915
-toggle 338,881 through 845,905
-turn on 469,462 through 750,696
-turn on 741,703 through 892,870
-turn off 570,215 through 733,562
-turn on 445,576 through 870,775
-turn on 466,747 through 554,878
-turn off 820,453 through 868,712
-turn off 892,706 through 938,792
-turn off 300,238 through 894,746
-turn off 306,44 through 457,444
-turn off 912,569 through 967,963
-toggle 109,756 through 297,867
-turn on 37,546 through 41,951
-turn on 321,637 through 790,910
-toggle 66,50 through 579,301
-toggle 933,221 through 933,791
-turn on 486,676 through 878,797
-turn on 417,231 through 556,317
-toggle 904,468 through 981,873
-turn on 417,675 through 749,712
-turn on 692,371 through 821,842
-toggle 324,73 through 830,543
-turn on 912,490 through 977,757
-turn off 634,872 through 902,949
-toggle 266,779 through 870,798
-turn on 772,982 through 990,996
-turn off 607,46 through 798,559
-turn on 295,602 through 963,987
-turn on 657,86 through 944,742
-turn off 334,639 through 456,821
-turn off 997,667 through 997,670
-turn off 725,832 through 951,945
-turn off 30,120 through 952,984
-turn on 860,965 through 917,976
-toggle 471,997 through 840,998
-turn off 319,307 through 928,504
-toggle 823,631 through 940,908
-toggle 969,984 through 981,993
-turn off 691,319 through 865,954
-toggle 911,926 through 938,929
-turn on 953,937 through 968,991
-toggle 914,643 through 975,840
-turn on 266,982 through 436,996
-turn off 101,896 through 321,932
-turn off 193,852 through 751,885
-turn off 576,532 through 863,684
-turn on 761,456 through 940,783
-turn on 20,290 through 398,933
-turn off 435,335 through 644,652
-turn on 830,569 through 905,770
-turn off 630,517 through 905,654
-turn on 664,53 through 886,976
-toggle 275,416 through 408,719
-turn on 370,621 through 515,793
-turn on 483,373 through 654,749
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-turn off 532,752 through 945,974
-toggle 301,150 through 880,792
-turn off 951,488 through 958,952
-turn on 207,729 through 882,828
-toggle 694,532 through 973,961
-toggle 676,639 through 891,802
-turn off 653,6 through 905,519
-toggle 391,109 through 418,312
-turn on 877,423 through 957,932
-turn on 340,145 through 563,522
-turn off 978,467 through 988,895
-turn off 396,418 through 420,885
-turn off 31,308 through 816,316
-turn on 107,675 through 758,824
-turn on 61,82 through 789,876
-turn on 750,743 through 754,760
-toggle 88,733 through 736,968
-turn off 754,349 through 849,897
-toggle 157,50 through 975,781
-turn off 230,231 through 865,842
-turn off 516,317 through 630,329
-turn off 697,820 through 829,903
-turn on 218,250 through 271,732
-toggle 56,167 through 404,431
-toggle 626,891 through 680,927
-toggle 370,207 through 791,514
-toggle 860,74 through 949,888
-turn on 416,527 through 616,541
-turn off 745,449 through 786,908
-turn on 485,554 through 689,689
-turn on 586,62 through 693,141
-toggle 506,759 through 768,829
-turn on 473,109 through 929,166
-turn on 760,617 through 773,789
-toggle 595,683 through 618,789
-turn off 210,775 through 825,972
-toggle 12,426 through 179,982
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-turn on 102,498 through 121,807
-turn off 706,897 through 834,965
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-turn off 730,872 through 974,943
-turn off 595,626 through 836,711
-turn off 215,424 through 841,959
-toggle 341,780 through 861,813
-toggle 507,503 through 568,822
-turn on 252,603 through 349,655
-toggle 93,521 through 154,834
-turn on 565,682 through 951,954
-turn on 544,318 through 703,418
-toggle 756,953 through 891,964
-turn on 531,123 through 856,991
-turn on 148,315 through 776,559
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-toggle 626,105 through 738,720
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-toggle 813,724 through 903,941
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-toggle 105,410 through 885,819
-turn on 226,104 through 298,283
-turn off 224,604 through 508,762
-turn on 477,368 through 523,506
-turn off 477,901 through 627,936
-turn off 887,131 through 889,670
-turn on 896,994 through 938,999
-toggle 401,580 through 493,728
-toggle 987,184 through 991,205
-turn on 821,643 through 882,674
-toggle 784,940 through 968,959
-turn off 251,293 through 274,632
-turn off 339,840 through 341,844
-turn off 675,351 through 675,836
-toggle 918,857 through 944,886
-toggle 70,253 through 918,736
-turn off 612,604 through 772,680
-turn off 277,40 through 828,348
-toggle 692,139 through 698,880
-toggle 124,446 through 883,453
-toggle 969,932 through 990,945
-toggle 855,692 through 993,693
-toggle 722,472 through 887,899
-toggle 978,149 through 985,442
-toggle 837,540 through 916,889
-turn off 612,2 through 835,82
-toggle 560,767 through 878,856
-turn on 461,734 through 524,991
-toggle 206,824 through 976,912
-turn on 826,610 through 879,892
-turn on 577,699 through 956,933
-turn off 9,250 through 50,529
-turn off 77,657 through 817,677
-turn on 68,419 through 86,426
-turn on 991,720 through 992,784
-turn on 668,20 through 935,470
-turn off 133,418 through 613,458
-turn off 487,286 through 540,328
-toggle 247,874 through 840,955
-toggle 301,808 through 754,970
-turn off 34,194 through 578,203
-turn off 451,49 through 492,921
-turn on 907,256 through 912,737
-turn off 479,305 through 702,587
-turn on 545,583 through 732,749
-toggle 11,16 through 725,868
-turn on 965,343 through 986,908
-turn on 674,953 through 820,965
-toggle 398,147 through 504,583
-turn off 778,194 through 898,298
-turn on 179,140 through 350,852
-turn off 241,118 through 530,832
-turn off 41,447 through 932,737
-turn off 820,663 through 832,982
-turn on 550,460 through 964,782
-turn on 31,760 through 655,892
-toggle 628,958 through 811,992
diff --git a/2015/d06/ex2/ex2.py b/2015/d06/ex2/ex2.py
deleted file mode 100755
index 6da18af..0000000
--- a/2015/d06/ex2/ex2.py
+++ /dev/null
@@ -1,71 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import enum
-import itertools
-import sys
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-
-class Op(enum.StrEnum):
-    TURN_ON = "on"
-    TOGGLE = "toggle"
-    TURN_OFF = "off"
-
-
-class Instruction(NamedTuple):
-    op: Op
-    a: Point
-    b: Point
-
-    @classmethod
-    def from_str(cls, input: str) -> "Instruction":
-        split_input = input.split()
-        raw_a, raw_b = split_input[-3], split_input[-1]
-        op = Op(split_input[1]) if split_input[0] == "turn" else Op(split_input[0])
-        return Instruction(
-            op,
-            Point(*map(int, raw_a.split(","))),
-            Point(*map(int, raw_b.split(","))),
-        )
-
-    def apply(self, screen: collections.Counter[Point]) -> collections.Counter[Point]:
-        points = collections.Counter(
-            Point(x, y)
-            for x, y in itertools.product(
-                range(self.a.x, self.b.x + 1),
-                range(self.a.y, self.b.y + 1),
-            )
-        )
-        match self.op:
-            case Op.TURN_ON:
-                return screen + points
-            case Op.TOGGLE:
-                return screen + points + points
-            case Op.TURN_OFF:
-                return screen - points
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> list[Instruction]:
-        return [Instruction.from_str(line) for line in input.splitlines()]
-
-    instructions = parse(input)
-    screen: collections.Counter[Point] = collections.Counter()
-    for instr in instructions:
-        screen = instr.apply(screen)
-    return screen.total()
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d06/ex2/input b/2015/d06/ex2/input
deleted file mode 100644
index df10465..0000000
--- a/2015/d06/ex2/input
+++ /dev/null
@@ -1,300 +0,0 @@
-turn on 489,959 through 759,964
-turn off 820,516 through 871,914
-turn off 427,423 through 929,502
-turn on 774,14 through 977,877
-turn on 410,146 through 864,337
-turn on 931,331 through 939,812
-turn off 756,53 through 923,339
-turn off 313,787 through 545,979
-turn off 12,823 through 102,934
-toggle 756,965 through 812,992
-turn off 743,684 through 789,958
-toggle 120,314 through 745,489
-toggle 692,845 through 866,994
-turn off 587,176 through 850,273
-turn off 674,321 through 793,388
-toggle 749,672 through 973,965
-turn on 943,30 through 990,907
-turn on 296,50 through 729,664
-turn on 212,957 through 490,987
-toggle 171,31 through 688,88
-turn off 991,989 through 994,998
-turn off 913,943 through 958,953
-turn off 278,258 through 367,386
-toggle 275,796 through 493,971
-turn off 70,873 through 798,923
-toggle 258,985 through 663,998
-turn on 601,259 through 831,486
-turn off 914,94 through 941,102
-turn off 558,161 through 994,647
-turn on 119,662 through 760,838
-toggle 378,775 through 526,852
-turn off 384,670 through 674,972
-turn off 249,41 through 270,936
-turn on 614,742 through 769,780
-turn on 427,70 through 575,441
-turn on 410,478 through 985,753
-turn off 619,46 through 931,342
-turn on 284,55 through 768,922
-turn off 40,592 through 728,685
-turn on 825,291 through 956,950
-turn on 147,843 through 592,909
-turn off 218,675 through 972,911
-toggle 249,291 through 350,960
-turn off 556,80 through 967,675
-toggle 609,148 through 968,279
-toggle 217,605 through 961,862
-toggle 407,177 through 548,910
-toggle 400,936 through 599,938
-turn off 721,101 through 925,455
-turn on 268,631 through 735,814
-toggle 549,969 through 612,991
-toggle 553,268 through 689,432
-turn off 817,668 through 889,897
-toggle 801,544 through 858,556
-toggle 615,729 through 832,951
-turn off 427,477 through 958,948
-turn on 164,49 through 852,946
-turn on 542,449 through 774,776
-turn off 923,196 through 980,446
-toggle 90,310 through 718,846
-turn off 657,215 through 744,252
-turn off 800,239 through 811,712
-turn on 502,90 through 619,760
-toggle 649,512 through 862,844
-turn off 334,903 through 823,935
-turn off 630,233 through 839,445
-turn on 713,67 through 839,865
-turn on 932,50 through 982,411
-turn off 480,729 through 984,910
-turn on 100,219 through 796,395
-turn on 758,108 through 850,950
-turn off 427,276 through 439,938
-turn on 178,284 through 670,536
-toggle 540,27 through 625,102
-turn off 906,722 through 936,948
-toggle 345,418 through 859,627
-toggle 175,775 through 580,781
-toggle 863,28 through 929,735
-turn off 824,858 through 905,973
-toggle 752,312 through 863,425
-turn on 985,716 through 988,852
-turn off 68,504 through 763,745
-toggle 76,209 through 810,720
-turn off 657,607 through 676,664
-toggle 596,869 through 896,921
-turn off 915,411 through 968,945
-turn off 368,39 through 902,986
-turn on 11,549 through 393,597
-turn off 842,893 through 976,911
-toggle 274,106 through 581,329
-toggle 406,403 through 780,950
-toggle 408,988 through 500,994
-toggle 217,73 through 826,951
-turn on 917,872 through 961,911
-toggle 394,34 through 510,572
-toggle 424,603 through 583,626
-toggle 106,159 through 755,738
-turn off 244,610 through 472,709
-turn on 350,265 through 884,690
-turn on 688,184 through 928,280
-toggle 279,443 through 720,797
-turn off 615,493 through 888,610
-toggle 118,413 through 736,632
-turn on 798,782 through 829,813
-turn off 250,934 through 442,972
-turn on 68,503 through 400,949
-toggle 297,482 through 313,871
-toggle 710,3 through 839,859
-turn on 125,300 through 546,888
-toggle 482,39 through 584,159
-turn off 536,89 through 765,962
-turn on 530,518 through 843,676
-turn on 994,467 through 994,676
-turn on 623,628 through 744,927
-toggle 704,912 through 837,983
-turn on 154,364 through 517,412
-toggle 344,409 through 780,524
-turn off 578,740 through 725,879
-turn on 251,933 through 632,957
-turn on 827,705 through 971,789
-toggle 191,282 through 470,929
-toggle 324,525 through 446,867
-toggle 534,343 through 874,971
-toggle 550,650 through 633,980
-toggle 837,404 through 881,915
-toggle 338,881 through 845,905
-turn on 469,462 through 750,696
-turn on 741,703 through 892,870
-turn off 570,215 through 733,562
-turn on 445,576 through 870,775
-turn on 466,747 through 554,878
-turn off 820,453 through 868,712
-turn off 892,706 through 938,792
-turn off 300,238 through 894,746
-turn off 306,44 through 457,444
-turn off 912,569 through 967,963
-toggle 109,756 through 297,867
-turn on 37,546 through 41,951
-turn on 321,637 through 790,910
-toggle 66,50 through 579,301
-toggle 933,221 through 933,791
-turn on 486,676 through 878,797
-turn on 417,231 through 556,317
-toggle 904,468 through 981,873
-turn on 417,675 through 749,712
-turn on 692,371 through 821,842
-toggle 324,73 through 830,543
-turn on 912,490 through 977,757
-turn off 634,872 through 902,949
-toggle 266,779 through 870,798
-turn on 772,982 through 990,996
-turn off 607,46 through 798,559
-turn on 295,602 through 963,987
-turn on 657,86 through 944,742
-turn off 334,639 through 456,821
-turn off 997,667 through 997,670
-turn off 725,832 through 951,945
-turn off 30,120 through 952,984
-turn on 860,965 through 917,976
-toggle 471,997 through 840,998
-turn off 319,307 through 928,504
-toggle 823,631 through 940,908
-toggle 969,984 through 981,993
-turn off 691,319 through 865,954
-toggle 911,926 through 938,929
-turn on 953,937 through 968,991
-toggle 914,643 through 975,840
-turn on 266,982 through 436,996
-turn off 101,896 through 321,932
-turn off 193,852 through 751,885
-turn off 576,532 through 863,684
-turn on 761,456 through 940,783
-turn on 20,290 through 398,933
-turn off 435,335 through 644,652
-turn on 830,569 through 905,770
-turn off 630,517 through 905,654
-turn on 664,53 through 886,976
-toggle 275,416 through 408,719
-turn on 370,621 through 515,793
-turn on 483,373 through 654,749
-turn on 656,786 through 847,928
-turn off 532,752 through 945,974
-toggle 301,150 through 880,792
-turn off 951,488 through 958,952
-turn on 207,729 through 882,828
-toggle 694,532 through 973,961
-toggle 676,639 through 891,802
-turn off 653,6 through 905,519
-toggle 391,109 through 418,312
-turn on 877,423 through 957,932
-turn on 340,145 through 563,522
-turn off 978,467 through 988,895
-turn off 396,418 through 420,885
-turn off 31,308 through 816,316
-turn on 107,675 through 758,824
-turn on 61,82 through 789,876
-turn on 750,743 through 754,760
-toggle 88,733 through 736,968
-turn off 754,349 through 849,897
-toggle 157,50 through 975,781
-turn off 230,231 through 865,842
-turn off 516,317 through 630,329
-turn off 697,820 through 829,903
-turn on 218,250 through 271,732
-toggle 56,167 through 404,431
-toggle 626,891 through 680,927
-toggle 370,207 through 791,514
-toggle 860,74 through 949,888
-turn on 416,527 through 616,541
-turn off 745,449 through 786,908
-turn on 485,554 through 689,689
-turn on 586,62 through 693,141
-toggle 506,759 through 768,829
-turn on 473,109 through 929,166
-turn on 760,617 through 773,789
-toggle 595,683 through 618,789
-turn off 210,775 through 825,972
-toggle 12,426 through 179,982
-turn on 774,539 through 778,786
-turn on 102,498 through 121,807
-turn off 706,897 through 834,965
-turn off 678,529 through 824,627
-turn on 7,765 through 615,870
-turn off 730,872 through 974,943
-turn off 595,626 through 836,711
-turn off 215,424 through 841,959
-toggle 341,780 through 861,813
-toggle 507,503 through 568,822
-turn on 252,603 through 349,655
-toggle 93,521 through 154,834
-turn on 565,682 through 951,954
-turn on 544,318 through 703,418
-toggle 756,953 through 891,964
-turn on 531,123 through 856,991
-turn on 148,315 through 776,559
-turn off 925,835 through 963,971
-turn on 895,944 through 967,964
-turn off 102,527 through 650,747
-toggle 626,105 through 738,720
-turn off 160,75 through 384,922
-toggle 813,724 through 903,941
-turn on 207,107 through 982,849
-toggle 750,505 through 961,697
-toggle 105,410 through 885,819
-turn on 226,104 through 298,283
-turn off 224,604 through 508,762
-turn on 477,368 through 523,506
-turn off 477,901 through 627,936
-turn off 887,131 through 889,670
-turn on 896,994 through 938,999
-toggle 401,580 through 493,728
-toggle 987,184 through 991,205
-turn on 821,643 through 882,674
-toggle 784,940 through 968,959
-turn off 251,293 through 274,632
-turn off 339,840 through 341,844
-turn off 675,351 through 675,836
-toggle 918,857 through 944,886
-toggle 70,253 through 918,736
-turn off 612,604 through 772,680
-turn off 277,40 through 828,348
-toggle 692,139 through 698,880
-toggle 124,446 through 883,453
-toggle 969,932 through 990,945
-toggle 855,692 through 993,693
-toggle 722,472 through 887,899
-toggle 978,149 through 985,442
-toggle 837,540 through 916,889
-turn off 612,2 through 835,82
-toggle 560,767 through 878,856
-turn on 461,734 through 524,991
-toggle 206,824 through 976,912
-turn on 826,610 through 879,892
-turn on 577,699 through 956,933
-turn off 9,250 through 50,529
-turn off 77,657 through 817,677
-turn on 68,419 through 86,426
-turn on 991,720 through 992,784
-turn on 668,20 through 935,470
-turn off 133,418 through 613,458
-turn off 487,286 through 540,328
-toggle 247,874 through 840,955
-toggle 301,808 through 754,970
-turn off 34,194 through 578,203
-turn off 451,49 through 492,921
-turn on 907,256 through 912,737
-turn off 479,305 through 702,587
-turn on 545,583 through 732,749
-toggle 11,16 through 725,868
-turn on 965,343 through 986,908
-turn on 674,953 through 820,965
-toggle 398,147 through 504,583
-turn off 778,194 through 898,298
-turn on 179,140 through 350,852
-turn off 241,118 through 530,832
-turn off 41,447 through 932,737
-turn off 820,663 through 832,982
-turn on 550,460 through 964,782
-turn on 31,760 through 655,892
-toggle 628,958 through 811,992
diff --git a/2015/d07/ex1/ex1.py b/2015/d07/ex1/ex1.py
deleted file mode 100755
index c70461c..0000000
--- a/2015/d07/ex1/ex1.py
+++ /dev/null
@@ -1,121 +0,0 @@
-#!/usr/bin/env python
-
-import enum
-import operator
-import sys
-from typing import NamedTuple
-
-
-class Op(enum.StrEnum):
-    AND = "AND_"
-    OR = "OR_"
-    LSHIFT = "LSHIFT"
-    RSHIFT = "RSHIFT"
-    NOT = "NOT"
-    IDENTITY = ""  # For the output to `a`, which has no operator
-
-    def apply(self, lhs: int, rhs: int | None) -> int:
-        if self == Op.IDENTITY:
-            assert rhs is None
-            return lhs
-        if self == Op.NOT:
-            assert rhs is None
-            return ~lhs
-        assert rhs is not None
-        return getattr(operator, self.lower())(lhs, rhs)
-
-
-class Instruction(NamedTuple):
-    op: Op
-    lhs: str
-    rhs: str | None = None
-
-    @classmethod
-    def from_str(cls, input: str) -> "Instruction":
-        split_input = input.split()
-        if len(split_input) == 1:
-            op = ""
-            lhs = split_input[0]
-            rest = []
-        elif split_input[0] == "NOT":
-            op, lhs, *rest = split_input
-        else:
-            lhs, op, *rest = split_input
-        # Hacky way to match with the function in the `operator` module...
-        if op in ("AND", "OR"):
-            op = op + "_"
-        return cls(Op(op), lhs, *rest)
-
-
-Circuit = dict[str, Instruction | int]
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> tuple[str, Instruction | int]:
-        raw_instr, wire = input.split(" -> ")
-        if raw_instr.isdigit():
-            return wire, int(raw_instr)
-        return wire, Instruction.from_str(raw_instr)
-
-    def parse(input: str) -> Circuit:
-        return {wire: val for wire, val in map(parse_line, input.splitlines())}
-
-    def dependencies(circuit: Circuit) -> dict[str, set[str]]:
-        res: dict[str, set[str]] = {wire: set() for wire in circuit.keys()}
-        for wire, val in circuit.items():
-            if isinstance(val, int):
-                continue
-            for dep in (val.lhs, val.rhs):
-                if dep is None:
-                    continue
-                if dep.isdigit():
-                    continue
-                res[wire].add(dep)
-        return res
-
-    def topo_sort(dep_graph: dict[str, set[str]]) -> list[str]:
-        res: list[str] = []
-
-        queue = {n for n, deps in dep_graph.items() if not deps}
-        seen: set[str] = set()
-
-        while queue:
-            node = queue.pop()
-
-            res.append(node)
-            seen.add(node)
-            # Iterate over all nodes as we don't have information on children
-            for child, deps in dep_graph.items():
-                if child in seen:
-                    continue
-                if deps - seen:
-                    continue
-                queue.add(child)
-
-        return res
-
-    def run(circuit: Circuit) -> dict[str, int]:
-        res: dict[str, int] = {}
-        for wire in topo_sort(dependencies(circuit)):
-            match circuit[wire]:
-                case int(n):
-                    res[wire] = n
-                case Instruction(op, lhs, rhs):
-                    resolve = lambda v: int(v) if v.isdigit() else res[v]
-                    lhs_n = resolve(lhs)
-                    rhs_n = None if rhs is None else resolve(rhs)
-                    res[wire] = op.apply(lhs_n, rhs_n)
-        return res
-
-    circuit = parse(input)
-    wires = run(circuit)
-    return wires["a"]
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d07/ex1/input b/2015/d07/ex1/input
deleted file mode 100644
index 0fd2859..0000000
--- a/2015/d07/ex1/input
+++ /dev/null
@@ -1,339 +0,0 @@
-lf AND lq -> ls
-iu RSHIFT 1 -> jn
-bo OR bu -> bv
-gj RSHIFT 1 -> hc
-et RSHIFT 2 -> eu
-bv AND bx -> by
-is OR it -> iu
-b OR n -> o
-gf OR ge -> gg
-NOT kt -> ku
-ea AND eb -> ed
-kl OR kr -> ks
-hi AND hk -> hl
-au AND av -> ax
-lf RSHIFT 2 -> lg
-dd RSHIFT 3 -> df
-eu AND fa -> fc
-df AND dg -> di
-ip LSHIFT 15 -> it
-NOT el -> em
-et OR fe -> ff
-fj LSHIFT 15 -> fn
-t OR s -> u
-ly OR lz -> ma
-ko AND kq -> kr
-NOT fx -> fy
-et RSHIFT 1 -> fm
-eu OR fa -> fb
-dd RSHIFT 2 -> de
-NOT go -> gp
-kb AND kd -> ke
-hg OR hh -> hi
-jm LSHIFT 1 -> kg
-NOT cn -> co
-jp RSHIFT 2 -> jq
-jp RSHIFT 5 -> js
-1 AND io -> ip
-eo LSHIFT 15 -> es
-1 AND jj -> jk
-g AND i -> j
-ci RSHIFT 3 -> ck
-gn AND gp -> gq
-fs AND fu -> fv
-lj AND ll -> lm
-jk LSHIFT 15 -> jo
-iu RSHIFT 3 -> iw
-NOT ii -> ij
-1 AND cc -> cd
-bn RSHIFT 3 -> bp
-NOT gw -> gx
-NOT ft -> fu
-jn OR jo -> jp
-iv OR jb -> jc
-hv OR hu -> hw
-19138 -> b
-gj RSHIFT 5 -> gm
-hq AND hs -> ht
-dy RSHIFT 1 -> er
-ao OR an -> ap
-ld OR le -> lf
-bk LSHIFT 1 -> ce
-bz AND cb -> cc
-bi LSHIFT 15 -> bm
-il AND in -> io
-af AND ah -> ai
-as RSHIFT 1 -> bl
-lf RSHIFT 3 -> lh
-er OR es -> et
-NOT ax -> ay
-ci RSHIFT 1 -> db
-et AND fe -> fg
-lg OR lm -> ln
-k AND m -> n
-hz RSHIFT 2 -> ia
-kh LSHIFT 1 -> lb
-NOT ey -> ez
-NOT di -> dj
-dz OR ef -> eg
-lx -> a
-NOT iz -> ja
-gz LSHIFT 15 -> hd
-ce OR cd -> cf
-fq AND fr -> ft
-at AND az -> bb
-ha OR gz -> hb
-fp AND fv -> fx
-NOT gb -> gc
-ia AND ig -> ii
-gl OR gm -> gn
-0 -> c
-NOT ca -> cb
-bn RSHIFT 1 -> cg
-c LSHIFT 1 -> t
-iw OR ix -> iy
-kg OR kf -> kh
-dy OR ej -> ek
-km AND kn -> kp
-NOT fc -> fd
-hz RSHIFT 3 -> ib
-NOT dq -> dr
-NOT fg -> fh
-dy RSHIFT 2 -> dz
-kk RSHIFT 2 -> kl
-1 AND fi -> fj
-NOT hr -> hs
-jp RSHIFT 1 -> ki
-bl OR bm -> bn
-1 AND gy -> gz
-gr AND gt -> gu
-db OR dc -> dd
-de OR dk -> dl
-as RSHIFT 5 -> av
-lf RSHIFT 5 -> li
-hm AND ho -> hp
-cg OR ch -> ci
-gj AND gu -> gw
-ge LSHIFT 15 -> gi
-e OR f -> g
-fp OR fv -> fw
-fb AND fd -> fe
-cd LSHIFT 15 -> ch
-b RSHIFT 1 -> v
-at OR az -> ba
-bn RSHIFT 2 -> bo
-lh AND li -> lk
-dl AND dn -> do
-eg AND ei -> ej
-ex AND ez -> fa
-NOT kp -> kq
-NOT lk -> ll
-x AND ai -> ak
-jp OR ka -> kb
-NOT jd -> je
-iy AND ja -> jb
-jp RSHIFT 3 -> jr
-fo OR fz -> ga
-df OR dg -> dh
-gj RSHIFT 2 -> gk
-gj OR gu -> gv
-NOT jh -> ji
-ap LSHIFT 1 -> bj
-NOT ls -> lt
-ir LSHIFT 1 -> jl
-bn AND by -> ca
-lv LSHIFT 15 -> lz
-ba AND bc -> bd
-cy LSHIFT 15 -> dc
-ln AND lp -> lq
-x RSHIFT 1 -> aq
-gk OR gq -> gr
-NOT kx -> ky
-jg AND ji -> jj
-bn OR by -> bz
-fl LSHIFT 1 -> gf
-bp OR bq -> br
-he OR hp -> hq
-et RSHIFT 5 -> ew
-iu RSHIFT 2 -> iv
-gl AND gm -> go
-x OR ai -> aj
-hc OR hd -> he
-lg AND lm -> lo
-lh OR li -> lj
-da LSHIFT 1 -> du
-fo RSHIFT 2 -> fp
-gk AND gq -> gs
-bj OR bi -> bk
-lf OR lq -> lr
-cj AND cp -> cr
-hu LSHIFT 15 -> hy
-1 AND bh -> bi
-fo RSHIFT 3 -> fq
-NOT lo -> lp
-hw LSHIFT 1 -> iq
-dd RSHIFT 1 -> dw
-dt LSHIFT 15 -> dx
-dy AND ej -> el
-an LSHIFT 15 -> ar
-aq OR ar -> as
-1 AND r -> s
-fw AND fy -> fz
-NOT im -> in
-et RSHIFT 3 -> ev
-1 AND ds -> dt
-ec AND ee -> ef
-NOT ak -> al
-jl OR jk -> jm
-1 AND en -> eo
-lb OR la -> lc
-iu AND jf -> jh
-iu RSHIFT 5 -> ix
-bo AND bu -> bw
-cz OR cy -> da
-iv AND jb -> jd
-iw AND ix -> iz
-lf RSHIFT 1 -> ly
-iu OR jf -> jg
-NOT dm -> dn
-lw OR lv -> lx
-gg LSHIFT 1 -> ha
-lr AND lt -> lu
-fm OR fn -> fo
-he RSHIFT 3 -> hg
-aj AND al -> am
-1 AND kz -> la
-dy RSHIFT 5 -> eb
-jc AND je -> jf
-cm AND co -> cp
-gv AND gx -> gy
-ev OR ew -> ex
-jp AND ka -> kc
-fk OR fj -> fl
-dy RSHIFT 3 -> ea
-NOT bs -> bt
-NOT ag -> ah
-dz AND ef -> eh
-cf LSHIFT 1 -> cz
-NOT cv -> cw
-1 AND cx -> cy
-de AND dk -> dm
-ck AND cl -> cn
-x RSHIFT 5 -> aa
-dv LSHIFT 1 -> ep
-he RSHIFT 2 -> hf
-NOT bw -> bx
-ck OR cl -> cm
-bp AND bq -> bs
-as OR bd -> be
-he AND hp -> hr
-ev AND ew -> ey
-1 AND lu -> lv
-kk RSHIFT 3 -> km
-b AND n -> p
-NOT kc -> kd
-lc LSHIFT 1 -> lw
-km OR kn -> ko
-id AND if -> ig
-ih AND ij -> ik
-jr AND js -> ju
-ci RSHIFT 5 -> cl
-hz RSHIFT 1 -> is
-1 AND ke -> kf
-NOT gs -> gt
-aw AND ay -> az
-x RSHIFT 2 -> y
-ab AND ad -> ae
-ff AND fh -> fi
-ci AND ct -> cv
-eq LSHIFT 1 -> fk
-gj RSHIFT 3 -> gl
-u LSHIFT 1 -> ao
-NOT bb -> bc
-NOT hj -> hk
-kw AND ky -> kz
-as AND bd -> bf
-dw OR dx -> dy
-br AND bt -> bu
-kk AND kv -> kx
-ep OR eo -> eq
-he RSHIFT 1 -> hx
-ki OR kj -> kk
-NOT ju -> jv
-ek AND em -> en
-kk RSHIFT 5 -> kn
-NOT eh -> ei
-hx OR hy -> hz
-ea OR eb -> ec
-s LSHIFT 15 -> w
-fo RSHIFT 1 -> gh
-kk OR kv -> kw
-bn RSHIFT 5 -> bq
-NOT ed -> ee
-1 AND ht -> hu
-cu AND cw -> cx
-b RSHIFT 5 -> f
-kl AND kr -> kt
-iq OR ip -> ir
-ci RSHIFT 2 -> cj
-cj OR cp -> cq
-o AND q -> r
-dd RSHIFT 5 -> dg
-b RSHIFT 2 -> d
-ks AND ku -> kv
-b RSHIFT 3 -> e
-d OR j -> k
-NOT p -> q
-NOT cr -> cs
-du OR dt -> dv
-kf LSHIFT 15 -> kj
-NOT ac -> ad
-fo RSHIFT 5 -> fr
-hz OR ik -> il
-jx AND jz -> ka
-gh OR gi -> gj
-kk RSHIFT 1 -> ld
-hz RSHIFT 5 -> ic
-as RSHIFT 2 -> at
-NOT jy -> jz
-1 AND am -> an
-ci OR ct -> cu
-hg AND hh -> hj
-jq OR jw -> jx
-v OR w -> x
-la LSHIFT 15 -> le
-dh AND dj -> dk
-dp AND dr -> ds
-jq AND jw -> jy
-au OR av -> aw
-NOT bf -> bg
-z OR aa -> ab
-ga AND gc -> gd
-hz AND ik -> im
-jt AND jv -> jw
-z AND aa -> ac
-jr OR js -> jt
-hb LSHIFT 1 -> hv
-hf OR hl -> hm
-ib OR ic -> id
-fq OR fr -> fs
-cq AND cs -> ct
-ia OR ig -> ih
-dd OR do -> dp
-d AND j -> l
-ib AND ic -> ie
-as RSHIFT 3 -> au
-be AND bg -> bh
-dd AND do -> dq
-NOT l -> m
-1 AND gd -> ge
-y AND ae -> ag
-fo AND fz -> gb
-NOT ie -> if
-e AND f -> h
-x RSHIFT 3 -> z
-y OR ae -> af
-hf AND hl -> hn
-NOT h -> i
-NOT hn -> ho
-he RSHIFT 5 -> hh
diff --git a/2015/d07/ex2/ex2.py b/2015/d07/ex2/ex2.py
deleted file mode 100755
index 103836f..0000000
--- a/2015/d07/ex2/ex2.py
+++ /dev/null
@@ -1,122 +0,0 @@
-#!/usr/bin/env python
-
-import enum
-import operator
-import sys
-from typing import NamedTuple
-
-
-class Op(enum.StrEnum):
-    AND = "AND_"
-    OR = "OR_"
-    LSHIFT = "LSHIFT"
-    RSHIFT = "RSHIFT"
-    NOT = "NOT"
-    IDENTITY = ""  # For the output to `a`, which has no operator
-
-    def apply(self, lhs: int, rhs: int | None) -> int:
-        if self == Op.IDENTITY:
-            assert rhs is None
-            return lhs
-        if self == Op.NOT:
-            assert rhs is None
-            return ~lhs
-        assert rhs is not None
-        return getattr(operator, self.lower())(lhs, rhs)
-
-
-class Instruction(NamedTuple):
-    op: Op
-    lhs: str
-    rhs: str | None = None
-
-    @classmethod
-    def from_str(cls, input: str) -> "Instruction":
-        split_input = input.split()
-        if len(split_input) == 1:
-            op = ""
-            lhs = split_input[0]
-            rest = []
-        elif split_input[0] == "NOT":
-            op, lhs, *rest = split_input
-        else:
-            lhs, op, *rest = split_input
-        # Hacky way to match with the function in the `operator` module...
-        if op in ("AND", "OR"):
-            op = op + "_"
-        return cls(Op(op), lhs, *rest)
-
-
-Circuit = dict[str, Instruction | int]
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> tuple[str, Instruction | int]:
-        raw_instr, wire = input.split(" -> ")
-        if raw_instr.isdigit():
-            return wire, int(raw_instr)
-        return wire, Instruction.from_str(raw_instr)
-
-    def parse(input: str) -> Circuit:
-        return {wire: val for wire, val in map(parse_line, input.splitlines())}
-
-    def dependencies(circuit: Circuit) -> dict[str, set[str]]:
-        res: dict[str, set[str]] = {wire: set() for wire in circuit.keys()}
-        for wire, val in circuit.items():
-            if isinstance(val, int):
-                continue
-            for dep in (val.lhs, val.rhs):
-                if dep is None:
-                    continue
-                if dep.isdigit():
-                    continue
-                res[wire].add(dep)
-        return res
-
-    def topo_sort(dep_graph: dict[str, set[str]]) -> list[str]:
-        res: list[str] = []
-
-        queue = {n for n, deps in dep_graph.items() if not deps}
-        seen: set[str] = set()
-
-        while queue:
-            node = queue.pop()
-
-            res.append(node)
-            seen.add(node)
-            # Iterate over all nodes as we don't have information on children
-            for child, deps in dep_graph.items():
-                if child in seen:
-                    continue
-                if deps - seen:
-                    continue
-                queue.add(child)
-
-        return res
-
-    def run(circuit: Circuit) -> dict[str, int]:
-        res: dict[str, int] = {}
-        for wire in topo_sort(dependencies(circuit)):
-            match circuit[wire]:
-                case int(n):
-                    res[wire] = n
-                case Instruction(op, lhs, rhs):
-                    resolve = lambda v: int(v) if v.isdigit() else res[v]
-                    lhs_n = resolve(lhs)
-                    rhs_n = None if rhs is None else resolve(rhs)
-                    res[wire] = op.apply(lhs_n, rhs_n)
-        return res
-
-    circuit = parse(input)
-    first_run = run(circuit)
-    wires = run(circuit | {"b": first_run["a"]})
-    return wires["a"]
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d07/ex2/input b/2015/d07/ex2/input
deleted file mode 100644
index 0fd2859..0000000
--- a/2015/d07/ex2/input
+++ /dev/null
@@ -1,339 +0,0 @@
-lf AND lq -> ls
-iu RSHIFT 1 -> jn
-bo OR bu -> bv
-gj RSHIFT 1 -> hc
-et RSHIFT 2 -> eu
-bv AND bx -> by
-is OR it -> iu
-b OR n -> o
-gf OR ge -> gg
-NOT kt -> ku
-ea AND eb -> ed
-kl OR kr -> ks
-hi AND hk -> hl
-au AND av -> ax
-lf RSHIFT 2 -> lg
-dd RSHIFT 3 -> df
-eu AND fa -> fc
-df AND dg -> di
-ip LSHIFT 15 -> it
-NOT el -> em
-et OR fe -> ff
-fj LSHIFT 15 -> fn
-t OR s -> u
-ly OR lz -> ma
-ko AND kq -> kr
-NOT fx -> fy
-et RSHIFT 1 -> fm
-eu OR fa -> fb
-dd RSHIFT 2 -> de
-NOT go -> gp
-kb AND kd -> ke
-hg OR hh -> hi
-jm LSHIFT 1 -> kg
-NOT cn -> co
-jp RSHIFT 2 -> jq
-jp RSHIFT 5 -> js
-1 AND io -> ip
-eo LSHIFT 15 -> es
-1 AND jj -> jk
-g AND i -> j
-ci RSHIFT 3 -> ck
-gn AND gp -> gq
-fs AND fu -> fv
-lj AND ll -> lm
-jk LSHIFT 15 -> jo
-iu RSHIFT 3 -> iw
-NOT ii -> ij
-1 AND cc -> cd
-bn RSHIFT 3 -> bp
-NOT gw -> gx
-NOT ft -> fu
-jn OR jo -> jp
-iv OR jb -> jc
-hv OR hu -> hw
-19138 -> b
-gj RSHIFT 5 -> gm
-hq AND hs -> ht
-dy RSHIFT 1 -> er
-ao OR an -> ap
-ld OR le -> lf
-bk LSHIFT 1 -> ce
-bz AND cb -> cc
-bi LSHIFT 15 -> bm
-il AND in -> io
-af AND ah -> ai
-as RSHIFT 1 -> bl
-lf RSHIFT 3 -> lh
-er OR es -> et
-NOT ax -> ay
-ci RSHIFT 1 -> db
-et AND fe -> fg
-lg OR lm -> ln
-k AND m -> n
-hz RSHIFT 2 -> ia
-kh LSHIFT 1 -> lb
-NOT ey -> ez
-NOT di -> dj
-dz OR ef -> eg
-lx -> a
-NOT iz -> ja
-gz LSHIFT 15 -> hd
-ce OR cd -> cf
-fq AND fr -> ft
-at AND az -> bb
-ha OR gz -> hb
-fp AND fv -> fx
-NOT gb -> gc
-ia AND ig -> ii
-gl OR gm -> gn
-0 -> c
-NOT ca -> cb
-bn RSHIFT 1 -> cg
-c LSHIFT 1 -> t
-iw OR ix -> iy
-kg OR kf -> kh
-dy OR ej -> ek
-km AND kn -> kp
-NOT fc -> fd
-hz RSHIFT 3 -> ib
-NOT dq -> dr
-NOT fg -> fh
-dy RSHIFT 2 -> dz
-kk RSHIFT 2 -> kl
-1 AND fi -> fj
-NOT hr -> hs
-jp RSHIFT 1 -> ki
-bl OR bm -> bn
-1 AND gy -> gz
-gr AND gt -> gu
-db OR dc -> dd
-de OR dk -> dl
-as RSHIFT 5 -> av
-lf RSHIFT 5 -> li
-hm AND ho -> hp
-cg OR ch -> ci
-gj AND gu -> gw
-ge LSHIFT 15 -> gi
-e OR f -> g
-fp OR fv -> fw
-fb AND fd -> fe
-cd LSHIFT 15 -> ch
-b RSHIFT 1 -> v
-at OR az -> ba
-bn RSHIFT 2 -> bo
-lh AND li -> lk
-dl AND dn -> do
-eg AND ei -> ej
-ex AND ez -> fa
-NOT kp -> kq
-NOT lk -> ll
-x AND ai -> ak
-jp OR ka -> kb
-NOT jd -> je
-iy AND ja -> jb
-jp RSHIFT 3 -> jr
-fo OR fz -> ga
-df OR dg -> dh
-gj RSHIFT 2 -> gk
-gj OR gu -> gv
-NOT jh -> ji
-ap LSHIFT 1 -> bj
-NOT ls -> lt
-ir LSHIFT 1 -> jl
-bn AND by -> ca
-lv LSHIFT 15 -> lz
-ba AND bc -> bd
-cy LSHIFT 15 -> dc
-ln AND lp -> lq
-x RSHIFT 1 -> aq
-gk OR gq -> gr
-NOT kx -> ky
-jg AND ji -> jj
-bn OR by -> bz
-fl LSHIFT 1 -> gf
-bp OR bq -> br
-he OR hp -> hq
-et RSHIFT 5 -> ew
-iu RSHIFT 2 -> iv
-gl AND gm -> go
-x OR ai -> aj
-hc OR hd -> he
-lg AND lm -> lo
-lh OR li -> lj
-da LSHIFT 1 -> du
-fo RSHIFT 2 -> fp
-gk AND gq -> gs
-bj OR bi -> bk
-lf OR lq -> lr
-cj AND cp -> cr
-hu LSHIFT 15 -> hy
-1 AND bh -> bi
-fo RSHIFT 3 -> fq
-NOT lo -> lp
-hw LSHIFT 1 -> iq
-dd RSHIFT 1 -> dw
-dt LSHIFT 15 -> dx
-dy AND ej -> el
-an LSHIFT 15 -> ar
-aq OR ar -> as
-1 AND r -> s
-fw AND fy -> fz
-NOT im -> in
-et RSHIFT 3 -> ev
-1 AND ds -> dt
-ec AND ee -> ef
-NOT ak -> al
-jl OR jk -> jm
-1 AND en -> eo
-lb OR la -> lc
-iu AND jf -> jh
-iu RSHIFT 5 -> ix
-bo AND bu -> bw
-cz OR cy -> da
-iv AND jb -> jd
-iw AND ix -> iz
-lf RSHIFT 1 -> ly
-iu OR jf -> jg
-NOT dm -> dn
-lw OR lv -> lx
-gg LSHIFT 1 -> ha
-lr AND lt -> lu
-fm OR fn -> fo
-he RSHIFT 3 -> hg
-aj AND al -> am
-1 AND kz -> la
-dy RSHIFT 5 -> eb
-jc AND je -> jf
-cm AND co -> cp
-gv AND gx -> gy
-ev OR ew -> ex
-jp AND ka -> kc
-fk OR fj -> fl
-dy RSHIFT 3 -> ea
-NOT bs -> bt
-NOT ag -> ah
-dz AND ef -> eh
-cf LSHIFT 1 -> cz
-NOT cv -> cw
-1 AND cx -> cy
-de AND dk -> dm
-ck AND cl -> cn
-x RSHIFT 5 -> aa
-dv LSHIFT 1 -> ep
-he RSHIFT 2 -> hf
-NOT bw -> bx
-ck OR cl -> cm
-bp AND bq -> bs
-as OR bd -> be
-he AND hp -> hr
-ev AND ew -> ey
-1 AND lu -> lv
-kk RSHIFT 3 -> km
-b AND n -> p
-NOT kc -> kd
-lc LSHIFT 1 -> lw
-km OR kn -> ko
-id AND if -> ig
-ih AND ij -> ik
-jr AND js -> ju
-ci RSHIFT 5 -> cl
-hz RSHIFT 1 -> is
-1 AND ke -> kf
-NOT gs -> gt
-aw AND ay -> az
-x RSHIFT 2 -> y
-ab AND ad -> ae
-ff AND fh -> fi
-ci AND ct -> cv
-eq LSHIFT 1 -> fk
-gj RSHIFT 3 -> gl
-u LSHIFT 1 -> ao
-NOT bb -> bc
-NOT hj -> hk
-kw AND ky -> kz
-as AND bd -> bf
-dw OR dx -> dy
-br AND bt -> bu
-kk AND kv -> kx
-ep OR eo -> eq
-he RSHIFT 1 -> hx
-ki OR kj -> kk
-NOT ju -> jv
-ek AND em -> en
-kk RSHIFT 5 -> kn
-NOT eh -> ei
-hx OR hy -> hz
-ea OR eb -> ec
-s LSHIFT 15 -> w
-fo RSHIFT 1 -> gh
-kk OR kv -> kw
-bn RSHIFT 5 -> bq
-NOT ed -> ee
-1 AND ht -> hu
-cu AND cw -> cx
-b RSHIFT 5 -> f
-kl AND kr -> kt
-iq OR ip -> ir
-ci RSHIFT 2 -> cj
-cj OR cp -> cq
-o AND q -> r
-dd RSHIFT 5 -> dg
-b RSHIFT 2 -> d
-ks AND ku -> kv
-b RSHIFT 3 -> e
-d OR j -> k
-NOT p -> q
-NOT cr -> cs
-du OR dt -> dv
-kf LSHIFT 15 -> kj
-NOT ac -> ad
-fo RSHIFT 5 -> fr
-hz OR ik -> il
-jx AND jz -> ka
-gh OR gi -> gj
-kk RSHIFT 1 -> ld
-hz RSHIFT 5 -> ic
-as RSHIFT 2 -> at
-NOT jy -> jz
-1 AND am -> an
-ci OR ct -> cu
-hg AND hh -> hj
-jq OR jw -> jx
-v OR w -> x
-la LSHIFT 15 -> le
-dh AND dj -> dk
-dp AND dr -> ds
-jq AND jw -> jy
-au OR av -> aw
-NOT bf -> bg
-z OR aa -> ab
-ga AND gc -> gd
-hz AND ik -> im
-jt AND jv -> jw
-z AND aa -> ac
-jr OR js -> jt
-hb LSHIFT 1 -> hv
-hf OR hl -> hm
-ib OR ic -> id
-fq OR fr -> fs
-cq AND cs -> ct
-ia OR ig -> ih
-dd OR do -> dp
-d AND j -> l
-ib AND ic -> ie
-as RSHIFT 3 -> au
-be AND bg -> bh
-dd AND do -> dq
-NOT l -> m
-1 AND gd -> ge
-y AND ae -> ag
-fo AND fz -> gb
-NOT ie -> if
-e AND f -> h
-x RSHIFT 3 -> z
-y OR ae -> af
-hf AND hl -> hn
-NOT h -> i
-NOT hn -> ho
-he RSHIFT 5 -> hh
diff --git a/2015/d08/ex1/ex1.py b/2015/d08/ex1/ex1.py
deleted file mode 100755
index 8e14c7f..0000000
--- a/2015/d08/ex1/ex1.py
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/usr/bin/env python
-
-import ast
-import sys
-
-
-def solve(input: str) -> int:
-    strings = input.splitlines()
-    # It's too easy to use the built-in parser not to do it...
-    return sum(len(raw) - len(ast.literal_eval(raw)) for raw in strings)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d08/ex1/input b/2015/d08/ex1/input
deleted file mode 100644
index 94538e7..0000000
--- a/2015/d08/ex1/input
+++ /dev/null
@@ -1,300 +0,0 @@
-"qxfcsmh"
-"ffsfyxbyuhqkpwatkjgudo"
-"byc\x9dyxuafof\\\xa6uf\\axfozomj\\olh\x6a"
-"jtqvz"
-"uzezxa\"jgbmojtwyfbfguz"
-"vqsremfk\x8fxiknektafj"
-"wzntebpxnnt\"vqndz\"i\x47vvjqo\""
-"higvez\"k\"riewqk"
-"dlkrbhbrlfrp\\damiauyucwhty"
-"d\""
-"qlz"
-"ku"
-"yy\"\"uoao\"uripabop"
-"saduyrntuswlnlkuppdro\\sicxosted"
-"tj"
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-"hey\\"
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-"\"vkwla"
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-"en\\m\"kxpq\"wpb\\\""
-"madouht\"bmdwvnyqvpnawiphgac\""
-"vuxpk\"ltucrw"
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-"eapheklx"
-"hfvma\"mietvc\"tszbbm\"czex"
-"h\"iiockj\\\xc1et"
-"d\"rmjjftm"
-"qlvhdcbqtyrhlc\\"
-"yy\"rsucjtulm\"coryri\"eqjlbmk"
-"tv"
-"r\"bfuht\\jjgujp\""
-"kukxvuauamtdosngdjlkauylttaokaj"
-"srgost\"\"rbkcqtlccu\x65ohjptstrjkzy"
-"yxwxl\\yjilwwxffrjjuazmzjs"
-"dxlw\\fkstu\"hjrtiafhyuoh\"sewabne"
-"\x88sj\"v"
-"rfzprz\xec\"oxqclu\"krzefp\\q"
-"cfmhdbjuhrcymgxpylllyvpni"
-"ucrmjvmimmcq\x88\xd9\"lz"
-"lujtt\""
-"gvbqoixn\"pmledpjmo\"flydnwkfxllf"
-"dvxqlbshhmelsk\x8big\"l"
-"mx\x54lma\x8bbguxejg"
-"\x66jdati\xeceieo"
-"\"iyyupixei\x54ff"
-"xohzf\"rbxsoksxamiu"
-"vlhthspeshzbppa\x4drhqnohjop\"\"mfjd"
-"f\"tvxxla\"vurian\"\"idjq\x3aptm\xc3olep"
-"gzqz"
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-"j\xd8"
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-"hbitoupimbawimxlxqze"
-"ypeleimnme"
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-"fb"
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-"butg\""
-"gb"
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-"rj\"ir\"wldwveair\x2es\"dhjrdehbqnzl"
-"ru\"elktnsbxufk\\ejufjfjlevt\\lrzd"
-"\"widsvok"
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-"ay"
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-"xylz\"zpvpab"
-"lwuopbeeegp"
-"aoop\x49jhhcexdmdtun"
-"\\\\mouqqcsgmz"
-"tltuvwhveau\x43b\"ymxjlcgiymcynwt"
-"gsugerumpyuhtjljbhrdyoj"
-"lnjm\xb8wg\"ajh"
-"zmspue\"nfttdon\\b\"eww"
-"\"w\x67jwaq\x7ernmyvs\\rmdsuwydsd\"th"
-"ogtgvtlmcvgllyv"
-"z\"fqi\"rvddoehrciyl"
-"yustxxtot\"muec\"xvfdbzunzvveq"
-"mqslw"
-"txqnyvzmibqgjs\xb6xy\x86nfalfyx"
-"kzhehlmkholov"
-"plpmywcnirrjutjguosh\\"
-"pydbnqofv\"dn\\m"
-"aegqof"
-"eambmxt\\dxagoogl\\zapfwwlmk"
-"afbmqitxxqhddlozuxcpjxgh"
-"vgts"
-"bfdpqtoxzzhmzcilehnflna"
-"s\"idpz"
-"\xcfhgly\"nlmztwybx\"ecezmsxaqw"
-"aackfgndqcqiy"
-"\x22unqdlsrvgzfaohoffgxzfpir\"s"
-"abh\"ydv\"kbpdhrerl"
-"bdzpg"
-"ekwgkywtmzp"
-"wtoodejqmrrgslhvnk\"pi\"ldnogpth"
-"njro\x68qgbx\xe4af\"\\suan"
diff --git a/2015/d08/ex2/ex2.py b/2015/d08/ex2/ex2.py
deleted file mode 100755
index 247844b..0000000
--- a/2015/d08/ex2/ex2.py
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import sys
-
-
-def solve(input: str) -> int:
-    def quote_len(raw: str) -> int:
-        characters = collections.Counter(raw)
-        # The `+ 2` is for the surrounding quotes
-        return characters.total() + characters['"'] + characters["\\"] + 2
-
-    strings = input.splitlines()
-    return sum(quote_len(raw) - len(raw) for raw in strings)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d08/ex2/input b/2015/d08/ex2/input
deleted file mode 100644
index 94538e7..0000000
--- a/2015/d08/ex2/input
+++ /dev/null
@@ -1,300 +0,0 @@
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-"higvez\"k\"riewqk"
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-"\xb5cwtuks\x5fpgh"
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-"madouht\"bmdwvnyqvpnawiphgac\""
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-"kukxvuauamtdosngdjlkauylttaokaj"
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-"gvbqoixn\"pmledpjmo\"flydnwkfxllf"
-"dvxqlbshhmelsk\x8big\"l"
-"mx\x54lma\x8bbguxejg"
-"\x66jdati\xeceieo"
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-"gb"
-"gywkoxf\"jsg\\wtopxvumirqxlwz"
-"rj\"ir\"wldwveair\x2es\"dhjrdehbqnzl"
-"ru\"elktnsbxufk\\ejufjfjlevt\\lrzd"
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-"aackfgndqcqiy"
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-"abh\"ydv\"kbpdhrerl"
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-"wtoodejqmrrgslhvnk\"pi\"ldnogpth"
-"njro\x68qgbx\xe4af\"\\suan"
diff --git a/2015/d09/ex1/ex1.py b/2015/d09/ex1/ex1.py
deleted file mode 100755
index 603897e..0000000
--- a/2015/d09/ex1/ex1.py
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import itertools
-import sys
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> tuple[str, str, int]:
-        p1, _, p2, _, dist = input.split()
-        return p1, p2, int(dist)
-
-    def parse(input: str) -> dict[str, dict[str, int]]:
-        res: dict[str, dict[str, int]] = collections.defaultdict(dict)
-        for p1, p2, dist in map(parse_line, input.splitlines()):
-            res[p1][p2] = dist
-            res[p2][p1] = dist
-        return res
-
-    # Boring Traveling Salesman solution
-    distances = parse(input)
-    return min(
-        sum(distances[s][e] for s, e in itertools.pairwise(travel_plan))
-        for travel_plan in itertools.permutations(distances.keys())
-    )
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d09/ex1/input b/2015/d09/ex1/input
deleted file mode 100644
index 9850564..0000000
--- a/2015/d09/ex1/input
+++ /dev/null
@@ -1,28 +0,0 @@
-Faerun to Norrath = 129
-Faerun to Tristram = 58
-Faerun to AlphaCentauri = 13
-Faerun to Arbre = 24
-Faerun to Snowdin = 60
-Faerun to Tambi = 71
-Faerun to Straylight = 67
-Norrath to Tristram = 142
-Norrath to AlphaCentauri = 15
-Norrath to Arbre = 135
-Norrath to Snowdin = 75
-Norrath to Tambi = 82
-Norrath to Straylight = 54
-Tristram to AlphaCentauri = 118
-Tristram to Arbre = 122
-Tristram to Snowdin = 103
-Tristram to Tambi = 49
-Tristram to Straylight = 97
-AlphaCentauri to Arbre = 116
-AlphaCentauri to Snowdin = 12
-AlphaCentauri to Tambi = 18
-AlphaCentauri to Straylight = 91
-Arbre to Snowdin = 129
-Arbre to Tambi = 53
-Arbre to Straylight = 40
-Snowdin to Tambi = 15
-Snowdin to Straylight = 99
-Tambi to Straylight = 70
diff --git a/2015/d09/ex2/ex2.py b/2015/d09/ex2/ex2.py
deleted file mode 100755
index 80cfdda..0000000
--- a/2015/d09/ex2/ex2.py
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import itertools
-import sys
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> tuple[str, str, int]:
-        p1, _, p2, _, dist = input.split()
-        return p1, p2, int(dist)
-
-    def parse(input: str) -> dict[str, dict[str, int]]:
-        res: dict[str, dict[str, int]] = collections.defaultdict(dict)
-        for p1, p2, dist in map(parse_line, input.splitlines()):
-            res[p1][p2] = dist
-            res[p2][p1] = dist
-        return res
-
-    # Boring Traveling Salesman solution
-    distances = parse(input)
-    return max(
-        sum(distances[s][e] for s, e in itertools.pairwise(travel_plan))
-        for travel_plan in itertools.permutations(distances.keys())
-    )
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d09/ex2/input b/2015/d09/ex2/input
deleted file mode 100644
index 9850564..0000000
--- a/2015/d09/ex2/input
+++ /dev/null
@@ -1,28 +0,0 @@
-Faerun to Norrath = 129
-Faerun to Tristram = 58
-Faerun to AlphaCentauri = 13
-Faerun to Arbre = 24
-Faerun to Snowdin = 60
-Faerun to Tambi = 71
-Faerun to Straylight = 67
-Norrath to Tristram = 142
-Norrath to AlphaCentauri = 15
-Norrath to Arbre = 135
-Norrath to Snowdin = 75
-Norrath to Tambi = 82
-Norrath to Straylight = 54
-Tristram to AlphaCentauri = 118
-Tristram to Arbre = 122
-Tristram to Snowdin = 103
-Tristram to Tambi = 49
-Tristram to Straylight = 97
-AlphaCentauri to Arbre = 116
-AlphaCentauri to Snowdin = 12
-AlphaCentauri to Tambi = 18
-AlphaCentauri to Straylight = 91
-Arbre to Snowdin = 129
-Arbre to Tambi = 53
-Arbre to Straylight = 40
-Snowdin to Tambi = 15
-Snowdin to Straylight = 99
-Tambi to Straylight = 70
diff --git a/2015/d10/ex1/ex1.py b/2015/d10/ex1/ex1.py
deleted file mode 100755
index b433abb..0000000
--- a/2015/d10/ex1/ex1.py
+++ /dev/null
@@ -1,312 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import enum
-import sys
-
-
-# https://en.wikipedia.org/wiki/Look-and-say_sequence#Cosmological_decay
-class Atom(enum.StrEnum):
-    H = "22"
-    He = "13112221133211322112211213322112"
-    Li = "312211322212221121123222112"
-    Be = "111312211312113221133211322112211213322112"
-    B = "1321132122211322212221121123222112"
-    C = "3113112211322112211213322112"
-    N = "111312212221121123222112"
-    O = "132112211213322112"
-    F = "31121123222112"
-    Ne = "111213322112"
-    Na = "123222112"
-    Mg = "3113322112"
-    Al = "1113222112"
-    Si = "1322112"
-    P = "311311222112"
-    S = "1113122112"
-    Cl = "132112"
-    Ar = "3112"
-    K = "1112"
-    Ca = "12"
-    Sc = "3113112221133112"
-    Ti = "11131221131112"
-    V = "13211312"
-    Cr = "31132"
-    Mn = "111311222112"
-    Fe = "13122112"
-    Co = "32112"
-    Ni = "11133112"
-    Cu = "131112"
-    Zn = "312"
-    Ga = "13221133122211332"
-    Ge = "31131122211311122113222"
-    As = "11131221131211322113322112"
-    Se = "13211321222113222112"
-    Br = "3113112211322112"
-    Kr = "11131221222112"
-    Rb = "1321122112"
-    Sr = "3112112"
-    Y = "1112133"
-    Zr = "12322211331222113112211"
-    Nb = "1113122113322113111221131221"
-    Mo = "13211322211312113211"
-    Tc = "311322113212221"
-    Ru = "132211331222113112211"
-    Rh = "311311222113111221131221"
-    Pd = "111312211312113211"
-    Ag = "132113212221"
-    Cd = "3113112211"
-    In = "11131221"
-    Sn = "13211"
-    Sb = "3112221"
-    Te = "1322113312211"
-    I = "311311222113111221"
-    Xe = "11131221131211"
-    Cs = "13211321"
-    Ba = "311311"
-    La = "11131"
-    Ce = "1321133112"
-    Pr = "31131112"
-    Nd = "111312"
-    Pm = "132"
-    Sm = "311332"
-    Eu = "1113222"
-    Gd = "13221133112"
-    Tb = "3113112221131112"
-    Dy = "111312211312"
-    Ho = "1321132"
-    Er = "311311222"
-    Tm = "11131221133112"
-    Yb = "1321131112"
-    Lu = "311312"
-    Hf = "11132"
-    Ta = "13112221133211322112211213322113"
-    W = "312211322212221121123222113"
-    Re = "111312211312113221133211322112211213322113"
-    Os = "1321132122211322212221121123222113"
-    Ir = "3113112211322112211213322113"
-    Pt = "111312212221121123222113"
-    Au = "132112211213322113"
-    Hg = "31121123222113"
-    Tl = "111213322113"
-    Pb = "123222113"
-    Bi = "3113322113"
-    Po = "1113222113"
-    At = "1322113"
-    Rn = "311311222113"
-    Fr = "1113122113"
-    Ra = "132113"
-    Ac = "3113"
-    Th = "1113"
-    Pa = "13"
-    U = "3"
-
-    def decay(self) -> list["Atom"]:
-        match self:
-            case Atom.H:
-                return [Atom.H]
-            case Atom.He:
-                return [Atom.Hf, Atom.Pa, Atom.H, Atom.Ca, Atom.Li]
-            case Atom.Li:
-                return [Atom.He]
-            case Atom.Be:
-                return [Atom.Ge, Atom.Ca, Atom.Li]
-            case Atom.B:
-                return [Atom.Be]
-            case Atom.C:
-                return [Atom.B]
-            case Atom.N:
-                return [Atom.C]
-            case Atom.O:
-                return [Atom.N]
-            case Atom.F:
-                return [Atom.O]
-            case Atom.Ne:
-                return [Atom.F]
-            case Atom.Na:
-                return [Atom.Ne]
-            case Atom.Mg:
-                return [Atom.Pm, Atom.Na]
-            case Atom.Al:
-                return [Atom.Mg]
-            case Atom.Si:
-                return [Atom.Al]
-            case Atom.P:
-                return [Atom.Ho, Atom.Si]
-            case Atom.S:
-                return [Atom.P]
-            case Atom.Cl:
-                return [Atom.S]
-            case Atom.Ar:
-                return [Atom.Cl]
-            case Atom.K:
-                return [Atom.Ar]
-            case Atom.Ca:
-                return [Atom.K]
-            case Atom.Sc:
-                return [Atom.Ho, Atom.Pa, Atom.H, Atom.Ca, Atom.Co]
-            case Atom.Ti:
-                return [Atom.Sc]
-            case Atom.V:
-                return [Atom.Ti]
-            case Atom.Cr:
-                return [Atom.V]
-            case Atom.Mn:
-                return [Atom.Cr, Atom.Si]
-            case Atom.Fe:
-                return [Atom.Mn]
-            case Atom.Co:
-                return [Atom.Fe]
-            case Atom.Ni:
-                return [Atom.Zn, Atom.Co]
-            case Atom.Cu:
-                return [Atom.Ni]
-            case Atom.Zn:
-                return [Atom.Cu]
-            case Atom.Ga:
-                return [Atom.Eu, Atom.Ca, Atom.Ac, Atom.H, Atom.Ca, Atom.Zn]
-            case Atom.Ge:
-                return [Atom.Ho, Atom.Ga]
-            case Atom.As:
-                return [Atom.Ge, Atom.Na]
-            case Atom.Se:
-                return [Atom.As]
-            case Atom.Br:
-                return [Atom.Se]
-            case Atom.Kr:
-                return [Atom.Br]
-            case Atom.Rb:
-                return [Atom.Kr]
-            case Atom.Sr:
-                return [Atom.Rb]
-            case Atom.Y:
-                return [Atom.Sr, Atom.U]
-            case Atom.Zr:
-                return [Atom.Y, Atom.H, Atom.Ca, Atom.Tc]
-            case Atom.Nb:
-                return [Atom.Er, Atom.Zr]
-            case Atom.Mo:
-                return [Atom.Nb]
-            case Atom.Tc:
-                return [Atom.Mo]
-            case Atom.Ru:
-                return [Atom.Eu, Atom.Ca, Atom.Tc]
-            case Atom.Rh:
-                return [Atom.Ho, Atom.Ru]
-            case Atom.Pd:
-                return [Atom.Rh]
-            case Atom.Ag:
-                return [Atom.Pd]
-            case Atom.Cd:
-                return [Atom.Ag]
-            case Atom.In:
-                return [Atom.Cd]
-            case Atom.Sn:
-                return [Atom.In]
-            case Atom.Sb:
-                return [Atom.Pm, Atom.Sn]
-            case Atom.Te:
-                return [Atom.Eu, Atom.Ca, Atom.Sb]
-            case Atom.I:
-                return [Atom.Ho, Atom.Te]
-            case Atom.Xe:
-                return [Atom.I]
-            case Atom.Cs:
-                return [Atom.Xe]
-            case Atom.Ba:
-                return [Atom.Cs]
-            case Atom.La:
-                return [Atom.Ba]
-            case Atom.Ce:
-                return [Atom.La, Atom.H, Atom.Ca, Atom.Co]
-            case Atom.Pr:
-                return [Atom.Ce]
-            case Atom.Nd:
-                return [Atom.Pr]
-            case Atom.Pm:
-                return [Atom.Nd]
-            case Atom.Sm:
-                return [Atom.Pm, Atom.Ca, Atom.Zn]
-            case Atom.Eu:
-                return [Atom.Sm]
-            case Atom.Gd:
-                return [Atom.Eu, Atom.Ca, Atom.Co]
-            case Atom.Tb:
-                return [Atom.Ho, Atom.Gd]
-            case Atom.Dy:
-                return [Atom.Tb]
-            case Atom.Ho:
-                return [Atom.Dy]
-            case Atom.Er:
-                return [Atom.Ho, Atom.Pm]
-            case Atom.Tm:
-                return [Atom.Er, Atom.Ca, Atom.Co]
-            case Atom.Yb:
-                return [Atom.Tm]
-            case Atom.Lu:
-                return [Atom.Yb]
-            case Atom.Hf:
-                return [Atom.Lu]
-            case Atom.Ta:
-                return [Atom.Hf, Atom.Pa, Atom.H, Atom.Ca, Atom.W]
-            case Atom.W:
-                return [Atom.Ta]
-            case Atom.Re:
-                return [Atom.Ge, Atom.Ca, Atom.W]
-            case Atom.Os:
-                return [Atom.Re]
-            case Atom.Ir:
-                return [Atom.Os]
-            case Atom.Pt:
-                return [Atom.Ir]
-            case Atom.Au:
-                return [Atom.Pt]
-            case Atom.Hg:
-                return [Atom.Au]
-            case Atom.Tl:
-                return [Atom.Hg]
-            case Atom.Pb:
-                return [Atom.Tl]
-            case Atom.Bi:
-                return [Atom.Pm, Atom.Pb]
-            case Atom.Po:
-                return [Atom.Bi]
-            case Atom.At:
-                return [Atom.Po]
-            case Atom.Rn:
-                return [Atom.Ho, Atom.At]
-            case Atom.Fr:
-                return [Atom.Rn]
-            case Atom.Ra:
-                return [Atom.Fr]
-            case Atom.Ac:
-                return [Atom.Ra]
-            case Atom.Th:
-                return [Atom.Ac]
-            case Atom.Pa:
-                return [Atom.Th]
-            case Atom.U:
-                return [Atom.Pa]
-
-
-def solve(input: str) -> int:
-    def look_and_say(atoms: dict[Atom, int]) -> dict[Atom, int]:
-        res: collections.Counter[Atom] = collections.Counter()
-        for atom, count in atoms.items():
-            for split in atom.decay():
-                res[split] += count
-        return res
-
-    # Happens to work, I assume for all inputs
-    atoms = {Atom(input.strip()): 1}
-    for _ in range(40):
-        atoms = look_and_say(atoms)
-    return sum(len(atom) * count for atom, count in atoms.items())
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d10/ex1/input b/2015/d10/ex1/input
deleted file mode 100644
index 13dcd63..0000000
--- a/2015/d10/ex1/input
+++ /dev/null
@@ -1 +0,0 @@
-3113322113
diff --git a/2015/d10/ex2/ex2.py b/2015/d10/ex2/ex2.py
deleted file mode 100755
index 1c6f40d..0000000
--- a/2015/d10/ex2/ex2.py
+++ /dev/null
@@ -1,312 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import enum
-import sys
-
-
-# https://en.wikipedia.org/wiki/Look-and-say_sequence#Cosmological_decay
-class Atom(enum.StrEnum):
-    H = "22"
-    He = "13112221133211322112211213322112"
-    Li = "312211322212221121123222112"
-    Be = "111312211312113221133211322112211213322112"
-    B = "1321132122211322212221121123222112"
-    C = "3113112211322112211213322112"
-    N = "111312212221121123222112"
-    O = "132112211213322112"
-    F = "31121123222112"
-    Ne = "111213322112"
-    Na = "123222112"
-    Mg = "3113322112"
-    Al = "1113222112"
-    Si = "1322112"
-    P = "311311222112"
-    S = "1113122112"
-    Cl = "132112"
-    Ar = "3112"
-    K = "1112"
-    Ca = "12"
-    Sc = "3113112221133112"
-    Ti = "11131221131112"
-    V = "13211312"
-    Cr = "31132"
-    Mn = "111311222112"
-    Fe = "13122112"
-    Co = "32112"
-    Ni = "11133112"
-    Cu = "131112"
-    Zn = "312"
-    Ga = "13221133122211332"
-    Ge = "31131122211311122113222"
-    As = "11131221131211322113322112"
-    Se = "13211321222113222112"
-    Br = "3113112211322112"
-    Kr = "11131221222112"
-    Rb = "1321122112"
-    Sr = "3112112"
-    Y = "1112133"
-    Zr = "12322211331222113112211"
-    Nb = "1113122113322113111221131221"
-    Mo = "13211322211312113211"
-    Tc = "311322113212221"
-    Ru = "132211331222113112211"
-    Rh = "311311222113111221131221"
-    Pd = "111312211312113211"
-    Ag = "132113212221"
-    Cd = "3113112211"
-    In = "11131221"
-    Sn = "13211"
-    Sb = "3112221"
-    Te = "1322113312211"
-    I = "311311222113111221"
-    Xe = "11131221131211"
-    Cs = "13211321"
-    Ba = "311311"
-    La = "11131"
-    Ce = "1321133112"
-    Pr = "31131112"
-    Nd = "111312"
-    Pm = "132"
-    Sm = "311332"
-    Eu = "1113222"
-    Gd = "13221133112"
-    Tb = "3113112221131112"
-    Dy = "111312211312"
-    Ho = "1321132"
-    Er = "311311222"
-    Tm = "11131221133112"
-    Yb = "1321131112"
-    Lu = "311312"
-    Hf = "11132"
-    Ta = "13112221133211322112211213322113"
-    W = "312211322212221121123222113"
-    Re = "111312211312113221133211322112211213322113"
-    Os = "1321132122211322212221121123222113"
-    Ir = "3113112211322112211213322113"
-    Pt = "111312212221121123222113"
-    Au = "132112211213322113"
-    Hg = "31121123222113"
-    Tl = "111213322113"
-    Pb = "123222113"
-    Bi = "3113322113"
-    Po = "1113222113"
-    At = "1322113"
-    Rn = "311311222113"
-    Fr = "1113122113"
-    Ra = "132113"
-    Ac = "3113"
-    Th = "1113"
-    Pa = "13"
-    U = "3"
-
-    def decay(self) -> list["Atom"]:
-        match self:
-            case Atom.H:
-                return [Atom.H]
-            case Atom.He:
-                return [Atom.Hf, Atom.Pa, Atom.H, Atom.Ca, Atom.Li]
-            case Atom.Li:
-                return [Atom.He]
-            case Atom.Be:
-                return [Atom.Ge, Atom.Ca, Atom.Li]
-            case Atom.B:
-                return [Atom.Be]
-            case Atom.C:
-                return [Atom.B]
-            case Atom.N:
-                return [Atom.C]
-            case Atom.O:
-                return [Atom.N]
-            case Atom.F:
-                return [Atom.O]
-            case Atom.Ne:
-                return [Atom.F]
-            case Atom.Na:
-                return [Atom.Ne]
-            case Atom.Mg:
-                return [Atom.Pm, Atom.Na]
-            case Atom.Al:
-                return [Atom.Mg]
-            case Atom.Si:
-                return [Atom.Al]
-            case Atom.P:
-                return [Atom.Ho, Atom.Si]
-            case Atom.S:
-                return [Atom.P]
-            case Atom.Cl:
-                return [Atom.S]
-            case Atom.Ar:
-                return [Atom.Cl]
-            case Atom.K:
-                return [Atom.Ar]
-            case Atom.Ca:
-                return [Atom.K]
-            case Atom.Sc:
-                return [Atom.Ho, Atom.Pa, Atom.H, Atom.Ca, Atom.Co]
-            case Atom.Ti:
-                return [Atom.Sc]
-            case Atom.V:
-                return [Atom.Ti]
-            case Atom.Cr:
-                return [Atom.V]
-            case Atom.Mn:
-                return [Atom.Cr, Atom.Si]
-            case Atom.Fe:
-                return [Atom.Mn]
-            case Atom.Co:
-                return [Atom.Fe]
-            case Atom.Ni:
-                return [Atom.Zn, Atom.Co]
-            case Atom.Cu:
-                return [Atom.Ni]
-            case Atom.Zn:
-                return [Atom.Cu]
-            case Atom.Ga:
-                return [Atom.Eu, Atom.Ca, Atom.Ac, Atom.H, Atom.Ca, Atom.Zn]
-            case Atom.Ge:
-                return [Atom.Ho, Atom.Ga]
-            case Atom.As:
-                return [Atom.Ge, Atom.Na]
-            case Atom.Se:
-                return [Atom.As]
-            case Atom.Br:
-                return [Atom.Se]
-            case Atom.Kr:
-                return [Atom.Br]
-            case Atom.Rb:
-                return [Atom.Kr]
-            case Atom.Sr:
-                return [Atom.Rb]
-            case Atom.Y:
-                return [Atom.Sr, Atom.U]
-            case Atom.Zr:
-                return [Atom.Y, Atom.H, Atom.Ca, Atom.Tc]
-            case Atom.Nb:
-                return [Atom.Er, Atom.Zr]
-            case Atom.Mo:
-                return [Atom.Nb]
-            case Atom.Tc:
-                return [Atom.Mo]
-            case Atom.Ru:
-                return [Atom.Eu, Atom.Ca, Atom.Tc]
-            case Atom.Rh:
-                return [Atom.Ho, Atom.Ru]
-            case Atom.Pd:
-                return [Atom.Rh]
-            case Atom.Ag:
-                return [Atom.Pd]
-            case Atom.Cd:
-                return [Atom.Ag]
-            case Atom.In:
-                return [Atom.Cd]
-            case Atom.Sn:
-                return [Atom.In]
-            case Atom.Sb:
-                return [Atom.Pm, Atom.Sn]
-            case Atom.Te:
-                return [Atom.Eu, Atom.Ca, Atom.Sb]
-            case Atom.I:
-                return [Atom.Ho, Atom.Te]
-            case Atom.Xe:
-                return [Atom.I]
-            case Atom.Cs:
-                return [Atom.Xe]
-            case Atom.Ba:
-                return [Atom.Cs]
-            case Atom.La:
-                return [Atom.Ba]
-            case Atom.Ce:
-                return [Atom.La, Atom.H, Atom.Ca, Atom.Co]
-            case Atom.Pr:
-                return [Atom.Ce]
-            case Atom.Nd:
-                return [Atom.Pr]
-            case Atom.Pm:
-                return [Atom.Nd]
-            case Atom.Sm:
-                return [Atom.Pm, Atom.Ca, Atom.Zn]
-            case Atom.Eu:
-                return [Atom.Sm]
-            case Atom.Gd:
-                return [Atom.Eu, Atom.Ca, Atom.Co]
-            case Atom.Tb:
-                return [Atom.Ho, Atom.Gd]
-            case Atom.Dy:
-                return [Atom.Tb]
-            case Atom.Ho:
-                return [Atom.Dy]
-            case Atom.Er:
-                return [Atom.Ho, Atom.Pm]
-            case Atom.Tm:
-                return [Atom.Er, Atom.Ca, Atom.Co]
-            case Atom.Yb:
-                return [Atom.Tm]
-            case Atom.Lu:
-                return [Atom.Yb]
-            case Atom.Hf:
-                return [Atom.Lu]
-            case Atom.Ta:
-                return [Atom.Hf, Atom.Pa, Atom.H, Atom.Ca, Atom.W]
-            case Atom.W:
-                return [Atom.Ta]
-            case Atom.Re:
-                return [Atom.Ge, Atom.Ca, Atom.W]
-            case Atom.Os:
-                return [Atom.Re]
-            case Atom.Ir:
-                return [Atom.Os]
-            case Atom.Pt:
-                return [Atom.Ir]
-            case Atom.Au:
-                return [Atom.Pt]
-            case Atom.Hg:
-                return [Atom.Au]
-            case Atom.Tl:
-                return [Atom.Hg]
-            case Atom.Pb:
-                return [Atom.Tl]
-            case Atom.Bi:
-                return [Atom.Pm, Atom.Pb]
-            case Atom.Po:
-                return [Atom.Bi]
-            case Atom.At:
-                return [Atom.Po]
-            case Atom.Rn:
-                return [Atom.Ho, Atom.At]
-            case Atom.Fr:
-                return [Atom.Rn]
-            case Atom.Ra:
-                return [Atom.Fr]
-            case Atom.Ac:
-                return [Atom.Ra]
-            case Atom.Th:
-                return [Atom.Ac]
-            case Atom.Pa:
-                return [Atom.Th]
-            case Atom.U:
-                return [Atom.Pa]
-
-
-def solve(input: str) -> int:
-    def look_and_say(atoms: dict[Atom, int]) -> dict[Atom, int]:
-        res: collections.Counter[Atom] = collections.Counter()
-        for atom, count in atoms.items():
-            for split in atom.decay():
-                res[split] += count
-        return res
-
-    # Happens to work, I assume for all inputs
-    atoms = {Atom(input.strip()): 1}
-    for _ in range(50):
-        atoms = look_and_say(atoms)
-    return sum(len(atom) * count for atom, count in atoms.items())
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d10/ex2/input b/2015/d10/ex2/input
deleted file mode 100644
index 13dcd63..0000000
--- a/2015/d10/ex2/input
+++ /dev/null
@@ -1 +0,0 @@
-3113322113
diff --git a/2015/d11/ex1/ex1.py b/2015/d11/ex1/ex1.py
deleted file mode 100755
index 2fa6fe8..0000000
--- a/2015/d11/ex1/ex1.py
+++ /dev/null
@@ -1,70 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import itertools
-import sys
-from collections.abc import Iterable, Iterator
-from typing import TypeVar
-
-T = TypeVar("T")
-
-
-def sliding_window(iterable: Iterable[T], n: int) -> Iterator[tuple[T, ...]]:
-    iterator = iter(iterable)
-    window = collections.deque(itertools.islice(iterator, n - 1), maxlen=n)
-    for x in iterator:
-        window.append(x)
-        yield tuple(window)
-
-
-def solve(input: str) -> str:
-    def parse(input: str) -> int:
-        res = 0
-        for c in input.strip():
-            res = res * 26 + ord(c) - ord("a")
-        return res
-
-    def unparse(n: int) -> str:
-        # Passwords *must* have 8 characters
-        assert 0 <= n < 26**8  # Sanity check
-        return "".join(chr(ord("a") + (n // 26**i) % 26) for i in range(8))[::-1]
-
-    def has_straight(password: str) -> bool:
-        for a, b, c in sliding_window(password, 3):
-            if ord(a) + 1 == ord(b) and ord(b) + 1 == ord(c):
-                return True
-        return False
-
-    def no_iol(password: str) -> bool:
-        return not any(c in password for c in "iol")
-
-    def has_couples(password: str) -> bool:
-        for i, (a, b) in enumerate(itertools.pairwise(password)):
-            if a != b:
-                continue
-            for c, d in itertools.pairwise(password[i + 2 :]):
-                if c == d:
-                    return True
-            return False
-        return False
-
-    n = parse(input)
-    while True:
-        n = (n + 1) % 26**8  # Restrict password to 8 characters
-        password = unparse(n)
-        if not has_straight(password):
-            continue
-        if not no_iol(password):
-            continue
-        if not has_couples(password):
-            continue
-        return password
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d11/ex1/input b/2015/d11/ex1/input
deleted file mode 100644
index 988745d..0000000
--- a/2015/d11/ex1/input
+++ /dev/null
@@ -1 +0,0 @@
-vzbxkghb
diff --git a/2015/d11/ex2/ex2.py b/2015/d11/ex2/ex2.py
deleted file mode 100755
index d69452b..0000000
--- a/2015/d11/ex2/ex2.py
+++ /dev/null
@@ -1,73 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import itertools
-import sys
-from collections.abc import Iterable, Iterator
-from typing import TypeVar
-
-T = TypeVar("T")
-
-
-def sliding_window(iterable: Iterable[T], n: int) -> Iterator[tuple[T, ...]]:
-    iterator = iter(iterable)
-    window = collections.deque(itertools.islice(iterator, n - 1), maxlen=n)
-    for x in iterator:
-        window.append(x)
-        yield tuple(window)
-
-
-def solve(input: str) -> str:
-    def parse(input: str) -> int:
-        res = 0
-        for c in input.strip():
-            res = res * 26 + ord(c) - ord("a")
-        return res
-
-    def unparse(n: int) -> str:
-        # Passwords *must* have 8 characters
-        assert 0 <= n < 26**8  # Sanity check
-        return "".join(chr(ord("a") + (n // 26**i) % 26) for i in range(8))[::-1]
-
-    def has_straight(password: str) -> bool:
-        for a, b, c in sliding_window(password, 3):
-            if ord(a) + 1 == ord(b) and ord(b) + 1 == ord(c):
-                return True
-        return False
-
-    def no_iol(password: str) -> bool:
-        return not any(c in password for c in "iol")
-
-    def has_couples(password: str) -> bool:
-        for i, (a, b) in enumerate(itertools.pairwise(password)):
-            if a != b:
-                continue
-            for c, d in itertools.pairwise(password[i + 2 :]):
-                if c == d:
-                    return True
-            return False
-        return False
-
-    def next_password(password: str) -> str:
-        n = parse(password)
-        while True:
-            n = (n + 1) % 26**8  # Restrict password to 8 characters
-            password = unparse(n)
-            if not has_straight(password):
-                continue
-            if not no_iol(password):
-                continue
-            if not has_couples(password):
-                continue
-            return password
-
-    return next_password(next_password(input))
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d11/ex2/input b/2015/d11/ex2/input
deleted file mode 100644
index 988745d..0000000
--- a/2015/d11/ex2/input
+++ /dev/null
@@ -1 +0,0 @@
-vzbxkghb
diff --git a/2015/d12/ex1/ex1.py b/2015/d12/ex1/ex1.py
deleted file mode 100755
index c622db9..0000000
--- a/2015/d12/ex1/ex1.py
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/usr/bin/env python
-
-import json
-import sys
-from collections.abc import Iterator
-
-JSONValue = int | str | list["JSONValue"] | dict[str, "JSONValue"]
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> JSONValue:
-        return json.loads(input)
-
-    def all_numbers(doc: JSONValue) -> Iterator[int]:
-        if isinstance(doc, int):
-            yield doc
-        elif isinstance(doc, list):
-            for it in doc:
-                yield from all_numbers(it)
-        elif isinstance(doc, dict):
-            for it in doc.values():
-                yield from all_numbers(it)
-
-    doc = parse(input)
-    return sum(all_numbers(doc))
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d12/ex1/input b/2015/d12/ex1/input
deleted file mode 100644
index 87e5309..0000000
--- a/2015/d12/ex1/input
+++ /dev/null
@@ -1 +0,0 @@
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diff --git a/2015/d12/ex2/ex2.py b/2015/d12/ex2/ex2.py
deleted file mode 100755
index 5f25859..0000000
--- a/2015/d12/ex2/ex2.py
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/usr/bin/env python
-
-import json
-import sys
-from collections.abc import Iterator
-
-JSONValue = int | str | list["JSONValue"] | dict[str, "JSONValue"]
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> JSONValue:
-        return json.loads(input)
-
-    def all_numbers(doc: JSONValue) -> Iterator[int]:
-        if isinstance(doc, int):
-            yield doc
-        elif isinstance(doc, list):
-            for it in doc:
-                yield from all_numbers(it)
-        elif isinstance(doc, dict):
-            if "red" in doc.values():
-                return
-            for it in doc.values():
-                yield from all_numbers(it)
-
-    doc = parse(input)
-    return sum(all_numbers(doc))
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d12/ex2/input b/2015/d12/ex2/input
deleted file mode 100644
index 87e5309..0000000
--- a/2015/d12/ex2/input
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diff --git a/2015/d13/ex1/ex1.py b/2015/d13/ex1/ex1.py
deleted file mode 100755
index 06ac1ad..0000000
--- a/2015/d13/ex1/ex1.py
+++ /dev/null
@@ -1,40 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import itertools
-import sys
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> tuple[str, str, int]:
-        split_input = input.removesuffix(".").split()
-        p, other = split_input[0], split_input[-1]
-        delta = int(split_input[3]) * (1 if split_input[2] == "gain" else -1)
-        return p, other, delta
-
-    def parse(input: str) -> dict[str, dict[str, int]]:
-        res: dict[str, dict[str, int]] = collections.defaultdict(dict)
-        for p, neighbour, delta in map(parse_line, input.splitlines()):
-            res[p][neighbour] = delta
-        return res
-
-    def score_seating(deltas: dict[str, dict[str, int]], seating: list[str]) -> int:
-        table = itertools.chain(seating, [seating[0]])
-        return sum(
-            deltas[p1][p2] + deltas[p2][p1] for p1, p2 in itertools.pairwise(table)
-        )
-
-    deltas = parse(input)
-    return max(
-        score_seating(deltas, list(perm))
-        for perm in itertools.permutations(deltas.keys())
-    )
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d13/ex1/input b/2015/d13/ex1/input
deleted file mode 100644
index a6f9c66..0000000
--- a/2015/d13/ex1/input
+++ /dev/null
@@ -1,56 +0,0 @@
-Alice would gain 2 happiness units by sitting next to Bob.
-Alice would gain 26 happiness units by sitting next to Carol.
-Alice would lose 82 happiness units by sitting next to David.
-Alice would lose 75 happiness units by sitting next to Eric.
-Alice would gain 42 happiness units by sitting next to Frank.
-Alice would gain 38 happiness units by sitting next to George.
-Alice would gain 39 happiness units by sitting next to Mallory.
-Bob would gain 40 happiness units by sitting next to Alice.
-Bob would lose 61 happiness units by sitting next to Carol.
-Bob would lose 15 happiness units by sitting next to David.
-Bob would gain 63 happiness units by sitting next to Eric.
-Bob would gain 41 happiness units by sitting next to Frank.
-Bob would gain 30 happiness units by sitting next to George.
-Bob would gain 87 happiness units by sitting next to Mallory.
-Carol would lose 35 happiness units by sitting next to Alice.
-Carol would lose 99 happiness units by sitting next to Bob.
-Carol would lose 51 happiness units by sitting next to David.
-Carol would gain 95 happiness units by sitting next to Eric.
-Carol would gain 90 happiness units by sitting next to Frank.
-Carol would lose 16 happiness units by sitting next to George.
-Carol would gain 94 happiness units by sitting next to Mallory.
-David would gain 36 happiness units by sitting next to Alice.
-David would lose 18 happiness units by sitting next to Bob.
-David would lose 65 happiness units by sitting next to Carol.
-David would lose 18 happiness units by sitting next to Eric.
-David would lose 22 happiness units by sitting next to Frank.
-David would gain 2 happiness units by sitting next to George.
-David would gain 42 happiness units by sitting next to Mallory.
-Eric would lose 65 happiness units by sitting next to Alice.
-Eric would gain 24 happiness units by sitting next to Bob.
-Eric would gain 100 happiness units by sitting next to Carol.
-Eric would gain 51 happiness units by sitting next to David.
-Eric would gain 21 happiness units by sitting next to Frank.
-Eric would gain 55 happiness units by sitting next to George.
-Eric would lose 44 happiness units by sitting next to Mallory.
-Frank would lose 48 happiness units by sitting next to Alice.
-Frank would gain 91 happiness units by sitting next to Bob.
-Frank would gain 8 happiness units by sitting next to Carol.
-Frank would lose 66 happiness units by sitting next to David.
-Frank would gain 97 happiness units by sitting next to Eric.
-Frank would lose 9 happiness units by sitting next to George.
-Frank would lose 92 happiness units by sitting next to Mallory.
-George would lose 44 happiness units by sitting next to Alice.
-George would lose 25 happiness units by sitting next to Bob.
-George would gain 17 happiness units by sitting next to Carol.
-George would gain 92 happiness units by sitting next to David.
-George would lose 92 happiness units by sitting next to Eric.
-George would gain 18 happiness units by sitting next to Frank.
-George would gain 97 happiness units by sitting next to Mallory.
-Mallory would gain 92 happiness units by sitting next to Alice.
-Mallory would lose 96 happiness units by sitting next to Bob.
-Mallory would lose 51 happiness units by sitting next to Carol.
-Mallory would lose 81 happiness units by sitting next to David.
-Mallory would gain 31 happiness units by sitting next to Eric.
-Mallory would lose 73 happiness units by sitting next to Frank.
-Mallory would lose 89 happiness units by sitting next to George.
diff --git a/2015/d13/ex2/ex2.py b/2015/d13/ex2/ex2.py
deleted file mode 100755
index a7fad12..0000000
--- a/2015/d13/ex2/ex2.py
+++ /dev/null
@@ -1,47 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import itertools
-import sys
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> tuple[str, str, int]:
-        split_input = input.removesuffix(".").split()
-        p, other = split_input[0], split_input[-1]
-        delta = int(split_input[3]) * (1 if split_input[2] == "gain" else -1)
-        return p, other, delta
-
-    def parse(input: str) -> dict[str, dict[str, int]]:
-        res: dict[str, dict[str, int]] = collections.defaultdict(dict)
-        for p, neighbour, delta in map(parse_line, input.splitlines()):
-            res[p][neighbour] = delta
-        return res
-
-    def score_seating(deltas: dict[str, dict[str, int]], seating: list[str]) -> int:
-        table = itertools.chain(seating, [seating[0]])
-        return sum(
-            deltas[p1][p2] + deltas[p2][p1] for p1, p2 in itertools.pairwise(table)
-        )
-
-    def add_me(deltas: dict[str, dict[str, int]]) -> None:
-        deltas["me"] = {}
-        for other in deltas.keys():
-            deltas["me"][other] = 0
-            deltas[other]["me"] = 0
-
-    deltas = parse(input)
-    add_me(deltas)
-    return max(
-        score_seating(deltas, list(perm))
-        for perm in itertools.permutations(deltas.keys())
-    )
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d13/ex2/input b/2015/d13/ex2/input
deleted file mode 100644
index a6f9c66..0000000
--- a/2015/d13/ex2/input
+++ /dev/null
@@ -1,56 +0,0 @@
-Alice would gain 2 happiness units by sitting next to Bob.
-Alice would gain 26 happiness units by sitting next to Carol.
-Alice would lose 82 happiness units by sitting next to David.
-Alice would lose 75 happiness units by sitting next to Eric.
-Alice would gain 42 happiness units by sitting next to Frank.
-Alice would gain 38 happiness units by sitting next to George.
-Alice would gain 39 happiness units by sitting next to Mallory.
-Bob would gain 40 happiness units by sitting next to Alice.
-Bob would lose 61 happiness units by sitting next to Carol.
-Bob would lose 15 happiness units by sitting next to David.
-Bob would gain 63 happiness units by sitting next to Eric.
-Bob would gain 41 happiness units by sitting next to Frank.
-Bob would gain 30 happiness units by sitting next to George.
-Bob would gain 87 happiness units by sitting next to Mallory.
-Carol would lose 35 happiness units by sitting next to Alice.
-Carol would lose 99 happiness units by sitting next to Bob.
-Carol would lose 51 happiness units by sitting next to David.
-Carol would gain 95 happiness units by sitting next to Eric.
-Carol would gain 90 happiness units by sitting next to Frank.
-Carol would lose 16 happiness units by sitting next to George.
-Carol would gain 94 happiness units by sitting next to Mallory.
-David would gain 36 happiness units by sitting next to Alice.
-David would lose 18 happiness units by sitting next to Bob.
-David would lose 65 happiness units by sitting next to Carol.
-David would lose 18 happiness units by sitting next to Eric.
-David would lose 22 happiness units by sitting next to Frank.
-David would gain 2 happiness units by sitting next to George.
-David would gain 42 happiness units by sitting next to Mallory.
-Eric would lose 65 happiness units by sitting next to Alice.
-Eric would gain 24 happiness units by sitting next to Bob.
-Eric would gain 100 happiness units by sitting next to Carol.
-Eric would gain 51 happiness units by sitting next to David.
-Eric would gain 21 happiness units by sitting next to Frank.
-Eric would gain 55 happiness units by sitting next to George.
-Eric would lose 44 happiness units by sitting next to Mallory.
-Frank would lose 48 happiness units by sitting next to Alice.
-Frank would gain 91 happiness units by sitting next to Bob.
-Frank would gain 8 happiness units by sitting next to Carol.
-Frank would lose 66 happiness units by sitting next to David.
-Frank would gain 97 happiness units by sitting next to Eric.
-Frank would lose 9 happiness units by sitting next to George.
-Frank would lose 92 happiness units by sitting next to Mallory.
-George would lose 44 happiness units by sitting next to Alice.
-George would lose 25 happiness units by sitting next to Bob.
-George would gain 17 happiness units by sitting next to Carol.
-George would gain 92 happiness units by sitting next to David.
-George would lose 92 happiness units by sitting next to Eric.
-George would gain 18 happiness units by sitting next to Frank.
-George would gain 97 happiness units by sitting next to Mallory.
-Mallory would gain 92 happiness units by sitting next to Alice.
-Mallory would lose 96 happiness units by sitting next to Bob.
-Mallory would lose 51 happiness units by sitting next to Carol.
-Mallory would lose 81 happiness units by sitting next to David.
-Mallory would gain 31 happiness units by sitting next to Eric.
-Mallory would lose 73 happiness units by sitting next to Frank.
-Mallory would lose 89 happiness units by sitting next to George.
diff --git a/2015/d14/ex1/ex1.py b/2015/d14/ex1/ex1.py
deleted file mode 100755
index 243daa2..0000000
--- a/2015/d14/ex1/ex1.py
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-from typing import NamedTuple
-
-
-class RunPerformance(NamedTuple):
-    speed: int
-    time: int
-    rest: int
-
-    def run(self, t: int) -> int:
-        cycle_length = self.time + self.rest
-        cycles = t // cycle_length
-        left_over = t % cycle_length
-        run_time = cycles * self.time + min(self.time, left_over)
-        return self.speed * run_time
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> tuple[str, RunPerformance]:
-        split_input = input.split()
-        speed, time, rest = map(int, (split_input[3], split_input[6], split_input[-2]))
-        return split_input[0], RunPerformance(speed, time, rest)
-
-    def parse(input: str) -> dict[str, RunPerformance]:
-        return {name: perf for name, perf in map(parse_line, input.splitlines())}
-
-    reindeers = parse(input)
-    return max(perf.run(2503) for perf in reindeers.values())
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d14/ex1/input b/2015/d14/ex1/input
deleted file mode 100644
index 6cf5489..0000000
--- a/2015/d14/ex1/input
+++ /dev/null
@@ -1,9 +0,0 @@
-Dancer can fly 27 km/s for 5 seconds, but then must rest for 132 seconds.
-Cupid can fly 22 km/s for 2 seconds, but then must rest for 41 seconds.
-Rudolph can fly 11 km/s for 5 seconds, but then must rest for 48 seconds.
-Donner can fly 28 km/s for 5 seconds, but then must rest for 134 seconds.
-Dasher can fly 4 km/s for 16 seconds, but then must rest for 55 seconds.
-Blitzen can fly 14 km/s for 3 seconds, but then must rest for 38 seconds.
-Prancer can fly 3 km/s for 21 seconds, but then must rest for 40 seconds.
-Comet can fly 18 km/s for 6 seconds, but then must rest for 103 seconds.
-Vixen can fly 18 km/s for 5 seconds, but then must rest for 84 seconds.
diff --git a/2015/d14/ex2/ex2.py b/2015/d14/ex2/ex2.py
deleted file mode 100755
index dbdd34f..0000000
--- a/2015/d14/ex2/ex2.py
+++ /dev/null
@@ -1,50 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-from typing import NamedTuple
-
-
-class RunPerformance(NamedTuple):
-    speed: int
-    time: int
-    rest: int
-
-    def run(self, t: int) -> int:
-        cycle_length = self.time + self.rest
-        cycles = t // cycle_length
-        left_over = t % cycle_length
-        run_time = cycles * self.time + min(self.time, left_over)
-        return self.speed * run_time
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> tuple[str, RunPerformance]:
-        split_input = input.split()
-        speed, time, rest = map(int, (split_input[3], split_input[6], split_input[-2]))
-        return split_input[0], RunPerformance(speed, time, rest)
-
-    def parse(input: str) -> dict[str, RunPerformance]:
-        return {name: perf for name, perf in map(parse_line, input.splitlines())}
-
-    def race(reindeers: dict[str, RunPerformance], t: int) -> dict[str, int]:
-        points = {name: 0 for name in reindeers.keys()}
-        for i in range(1, t + 1):
-            # Just re-compute the run every time, it's fast enough
-            distances = {name: perf.run(i) for name, perf in reindeers.items()}
-            max_dist = max(distances.values())
-            for name, distance in distances.items():
-                points[name] += distance == max_dist
-        return points
-
-    reindeers = parse(input)
-    scores = race(reindeers, 2503)
-    return max(scores.values())
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d14/ex2/input b/2015/d14/ex2/input
deleted file mode 100644
index 6cf5489..0000000
--- a/2015/d14/ex2/input
+++ /dev/null
@@ -1,9 +0,0 @@
-Dancer can fly 27 km/s for 5 seconds, but then must rest for 132 seconds.
-Cupid can fly 22 km/s for 2 seconds, but then must rest for 41 seconds.
-Rudolph can fly 11 km/s for 5 seconds, but then must rest for 48 seconds.
-Donner can fly 28 km/s for 5 seconds, but then must rest for 134 seconds.
-Dasher can fly 4 km/s for 16 seconds, but then must rest for 55 seconds.
-Blitzen can fly 14 km/s for 3 seconds, but then must rest for 38 seconds.
-Prancer can fly 3 km/s for 21 seconds, but then must rest for 40 seconds.
-Comet can fly 18 km/s for 6 seconds, but then must rest for 103 seconds.
-Vixen can fly 18 km/s for 5 seconds, but then must rest for 84 seconds.
diff --git a/2015/d15/ex1/ex1.py b/2015/d15/ex1/ex1.py
deleted file mode 100755
index 177d574..0000000
--- a/2015/d15/ex1/ex1.py
+++ /dev/null
@@ -1,73 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Properties(NamedTuple):
-    capacity: int
-    durability: int
-    flavor: int
-    texture: int
-    calories: int
-
-    @classmethod
-    def from_str(cls, input: str) -> "Properties":
-        properties = map(str.split, input.split(", "))
-        return cls(*(int(prop[-1]) for prop in properties))
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> tuple[str, Properties]:
-        ingredient, properties = input.split(": ")
-        return ingredient, Properties.from_str(properties)
-
-    def parse(input: str) -> dict[str, Properties]:
-        return {name: prop for name, prop in map(parse_line, input.splitlines())}
-
-    def score(ingredients: dict[str, Properties], amounts: dict[str, int]) -> int:
-        assert ingredients.keys() == amounts.keys()  # Sanity check
-        assert sum(amounts.values()) == 100  # Sanity check
-        res = 1
-        for prop in ("capacity", "durability", "flavor", "texture"):
-            res *= max(
-                0,
-                sum(
-                    getattr(ingredients[name], prop) * amounts[name]
-                    for name in ingredients.keys()
-                ),
-            )
-        return res
-
-    def permute_amounts(ingredients: dict[str, Properties]) -> Iterator[dict[str, int]]:
-        def helper(amounts: dict[str, int]) -> Iterator[dict[str, int]]:
-            remaining = 100 - sum(amounts.values())
-            assert remaining >= 0  # Sanity check
-            assert ingredients  # Sanity check
-
-            current = next(iter(n for n in ingredients.keys() if n not in amounts))
-            if (len(amounts) + 1) == len(ingredients):
-                yield amounts | {current: remaining}
-            else:
-                for i in range(remaining):
-                    yield from helper(amounts | {current: i})
-
-        yield from helper({})
-
-    def maximize_score(ingredient: dict[str, Properties]) -> int:
-        return max(
-            score(ingredient, amounts) for amounts in permute_amounts(ingredients)
-        )
-
-    ingredients = parse(input)
-    return maximize_score(ingredients)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d15/ex1/input b/2015/d15/ex1/input
deleted file mode 100644
index 6281182..0000000
--- a/2015/d15/ex1/input
+++ /dev/null
@@ -1,4 +0,0 @@
-Sprinkles: capacity 5, durability -1, flavor 0, texture 0, calories 5
-PeanutButter: capacity -1, durability 3, flavor 0, texture 0, calories 1
-Frosting: capacity 0, durability -1, flavor 4, texture 0, calories 6
-Sugar: capacity -1, durability 0, flavor 0, texture 2, calories 8
diff --git a/2015/d15/ex2/ex2.py b/2015/d15/ex2/ex2.py
deleted file mode 100755
index 1861296..0000000
--- a/2015/d15/ex2/ex2.py
+++ /dev/null
@@ -1,85 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-from collections.abc import Iterator
-from typing import Literal, NamedTuple, cast
-
-
-class Properties(NamedTuple):
-    capacity: int
-    durability: int
-    flavor: int
-    texture: int
-    calories: int
-
-    @classmethod
-    def from_str(cls, input: str) -> "Properties":
-        properties = map(str.split, input.split(", "))
-        return cls(*(int(prop[-1]) for prop in properties))
-
-
-PropertyName = Literal["capacity", "durability", "flavor", "texture", "calories"]
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> tuple[str, Properties]:
-        ingredient, properties = input.split(": ")
-        return ingredient, Properties.from_str(properties)
-
-    def parse(input: str) -> dict[str, Properties]:
-        return {name: prop for name, prop in map(parse_line, input.splitlines())}
-
-    def sum_properties(
-        ingredients: dict[str, Properties],
-        amounts: dict[str, int],
-        prop: PropertyName,
-    ) -> int:
-        return sum(
-            getattr(ingredients[name], prop) * amounts[name]
-            for name in ingredients.keys()
-        )
-
-    def score(ingredients: dict[str, Properties], amounts: dict[str, int]) -> int:
-        assert ingredients.keys() == amounts.keys()  # Sanity check
-        assert sum(amounts.values()) == 100  # Sanity check
-        res = 1
-        for prop in ("capacity", "durability", "flavor", "texture"):
-            res *= max(
-                0,
-                sum_properties(ingredients, amounts, cast(PropertyName, prop)),
-            )
-        return res
-
-    def permute_amounts(ingredients: dict[str, Properties]) -> Iterator[dict[str, int]]:
-        def helper(amounts: dict[str, int]) -> Iterator[dict[str, int]]:
-            remaining = 100 - sum(amounts.values())
-            assert remaining >= 0  # Sanity check
-            assert ingredients  # Sanity check
-
-            current = next(iter(n for n in ingredients.keys() if n not in amounts))
-            if (len(amounts) + 1) == len(ingredients):
-                yield amounts | {current: remaining}
-            else:
-                for i in range(remaining):
-                    yield from helper(amounts | {current: i})
-
-        yield from helper({})
-
-    def maximize_score(ingredient: dict[str, Properties]) -> int:
-        return max(
-            score(ingredient, amounts)
-            for amounts in permute_amounts(ingredients)
-            if sum_properties(ingredient, amounts, "calories") == 500
-        )
-
-    ingredients = parse(input)
-    return maximize_score(ingredients)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d15/ex2/input b/2015/d15/ex2/input
deleted file mode 100644
index 6281182..0000000
--- a/2015/d15/ex2/input
+++ /dev/null
@@ -1,4 +0,0 @@
-Sprinkles: capacity 5, durability -1, flavor 0, texture 0, calories 5
-PeanutButter: capacity -1, durability 3, flavor 0, texture 0, calories 1
-Frosting: capacity 0, durability -1, flavor 4, texture 0, calories 6
-Sugar: capacity -1, durability 0, flavor 0, texture 2, calories 8
diff --git a/2015/d16/ex1/ex1.py b/2015/d16/ex1/ex1.py
deleted file mode 100755
index a7ca6c2..0000000
--- a/2015/d16/ex1/ex1.py
+++ /dev/null
@@ -1,62 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-from typing import NamedTuple
-
-
-class Sue(NamedTuple):
-    children: int | None = None
-    cats: int | None = None
-    samoyeds: int | None = None
-    pomeranians: int | None = None
-    akitas: int | None = None
-    vizslas: int | None = None
-    goldfish: int | None = None
-    trees: int | None = None
-    cars: int | None = None
-    perfumes: int | None = None
-
-    def matches(self, reading: "Sue") -> bool:
-        for it, reading_it in zip(self, reading):
-            if it is None or reading_it is None:
-                continue
-            if it != reading_it:
-                return False
-        return True
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> Sue:
-        _, other = input.split(": ", 1)
-        raw_items = other.split(", ")
-        items = {
-            name: int(val) for name, val in (item.split(": ") for item in raw_items)
-        }
-        return Sue(**items)
-
-    def parse(input: str) -> list[Sue]:
-        return [parse_line(line) for line in input.splitlines()]
-
-    aunts = parse(input)
-    reading = Sue(
-        children=3,
-        cats=7,
-        samoyeds=2,
-        pomeranians=3,
-        akitas=0,
-        vizslas=0,
-        goldfish=5,
-        trees=3,
-        cars=2,
-        perfumes=1,
-    )
-    return next(i for i, sue in enumerate(aunts, 1) if sue.matches(reading))
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d16/ex1/input b/2015/d16/ex1/input
deleted file mode 100644
index 92ed31c..0000000
--- a/2015/d16/ex1/input
+++ /dev/null
@@ -1,500 +0,0 @@
-Sue 1: goldfish: 6, trees: 9, akitas: 0
-Sue 2: goldfish: 7, trees: 1, akitas: 0
-Sue 3: cars: 10, akitas: 6, perfumes: 7
-Sue 4: perfumes: 2, vizslas: 0, cars: 6
-Sue 5: goldfish: 1, trees: 3, perfumes: 10
-Sue 6: children: 9, vizslas: 7, cars: 9
-Sue 7: cars: 6, vizslas: 5, cats: 3
-Sue 8: akitas: 10, vizslas: 9, children: 3
-Sue 9: vizslas: 8, cats: 2, trees: 1
-Sue 10: perfumes: 10, trees: 6, cars: 4
-Sue 11: cars: 9, children: 1, cats: 1
-Sue 12: pomeranians: 4, akitas: 6, goldfish: 8
-Sue 13: cats: 10, children: 5, trees: 9
-Sue 14: perfumes: 8, vizslas: 3, samoyeds: 1
-Sue 15: vizslas: 2, perfumes: 8, trees: 3
-Sue 16: pomeranians: 10, trees: 9, samoyeds: 4
-Sue 17: akitas: 7, vizslas: 0, goldfish: 6
-Sue 18: trees: 5, vizslas: 9, cars: 0
-Sue 19: akitas: 3, goldfish: 9, trees: 10
-Sue 20: perfumes: 7, samoyeds: 3, vizslas: 10
-Sue 21: perfumes: 7, pomeranians: 10, akitas: 8
-Sue 22: vizslas: 6, trees: 8, akitas: 10
-Sue 23: goldfish: 0, trees: 4, children: 9
-Sue 24: goldfish: 7, pomeranians: 9, akitas: 4
-Sue 25: cars: 7, trees: 4, pomeranians: 4
-Sue 26: trees: 9, akitas: 9, pomeranians: 7
-Sue 27: samoyeds: 0, perfumes: 9, goldfish: 10
-Sue 28: cars: 5, trees: 7, vizslas: 1
-Sue 29: perfumes: 9, trees: 1, children: 6
-Sue 30: goldfish: 10, trees: 0, cars: 4
-Sue 31: akitas: 2, perfumes: 5, goldfish: 5
-Sue 32: goldfish: 0, akitas: 5, trees: 0
-Sue 33: vizslas: 2, akitas: 2, samoyeds: 3
-Sue 34: goldfish: 8, perfumes: 5, cars: 3
-Sue 35: akitas: 1, cats: 4, trees: 9
-Sue 36: cars: 4, vizslas: 4, goldfish: 7
-Sue 37: akitas: 5, perfumes: 7, trees: 3
-Sue 38: goldfish: 10, trees: 2, vizslas: 9
-Sue 39: goldfish: 4, pomeranians: 5, vizslas: 5
-Sue 40: perfumes: 5, samoyeds: 4, akitas: 6
-Sue 41: goldfish: 9, cars: 4, perfumes: 5
-Sue 42: trees: 6, pomeranians: 9, goldfish: 8
-Sue 43: perfumes: 7, pomeranians: 1, akitas: 2
-Sue 44: vizslas: 9, cars: 5, cats: 0
-Sue 45: akitas: 1, goldfish: 6, trees: 0
-Sue 46: akitas: 5, vizslas: 8, trees: 2
-Sue 47: trees: 9, akitas: 2, vizslas: 9
-Sue 48: goldfish: 10, trees: 5, akitas: 2
-Sue 49: cars: 7, vizslas: 2, perfumes: 6
-Sue 50: akitas: 5, goldfish: 6, perfumes: 0
-Sue 51: cars: 9, cats: 7, trees: 5
-Sue 52: akitas: 7, goldfish: 10, cars: 0
-Sue 53: cars: 10, cats: 4, perfumes: 2
-Sue 54: goldfish: 2, pomeranians: 5, perfumes: 10
-Sue 55: vizslas: 5, akitas: 4, cars: 8
-Sue 56: goldfish: 9, vizslas: 4, akitas: 5
-Sue 57: perfumes: 8, samoyeds: 7, cars: 9
-Sue 58: cars: 5, akitas: 7, perfumes: 8
-Sue 59: samoyeds: 8, cars: 10, vizslas: 10
-Sue 60: akitas: 6, samoyeds: 0, goldfish: 3
-Sue 61: trees: 8, pomeranians: 0, akitas: 2
-Sue 62: trees: 1, perfumes: 3, vizslas: 4
-Sue 63: vizslas: 6, samoyeds: 9, goldfish: 8
-Sue 64: goldfish: 7, trees: 6, vizslas: 3
-Sue 65: cars: 1, vizslas: 0, akitas: 6
-Sue 66: cats: 6, pomeranians: 4, cars: 9
-Sue 67: trees: 10, pomeranians: 7, samoyeds: 3
-Sue 68: pomeranians: 5, goldfish: 9, akitas: 1
-Sue 69: akitas: 1, vizslas: 0, trees: 9
-Sue 70: cats: 4, goldfish: 4, vizslas: 10
-Sue 71: vizslas: 7, perfumes: 7, trees: 8
-Sue 72: children: 2, vizslas: 9, cats: 3
-Sue 73: cars: 8, pomeranians: 0, perfumes: 6
-Sue 74: akitas: 1, pomeranians: 8, vizslas: 10
-Sue 75: vizslas: 5, perfumes: 5, cars: 7
-Sue 76: cars: 3, vizslas: 3, goldfish: 0
-Sue 77: akitas: 9, samoyeds: 1, pomeranians: 3
-Sue 78: trees: 0, vizslas: 0, akitas: 6
-Sue 79: pomeranians: 9, cars: 1, perfumes: 0
-Sue 80: perfumes: 10, trees: 1, cats: 0
-Sue 81: goldfish: 5, akitas: 9, trees: 0
-Sue 82: vizslas: 1, akitas: 6, children: 4
-Sue 83: samoyeds: 7, perfumes: 8, pomeranians: 4
-Sue 84: perfumes: 3, children: 3, cats: 7
-Sue 85: goldfish: 9, trees: 3, cars: 9
-Sue 86: cars: 0, perfumes: 9, vizslas: 0
-Sue 87: children: 3, trees: 4, akitas: 3
-Sue 88: trees: 1, samoyeds: 1, goldfish: 0
-Sue 89: akitas: 8, cars: 3, vizslas: 9
-Sue 90: pomeranians: 9, trees: 9, goldfish: 8
-Sue 91: goldfish: 7, trees: 10, children: 0
-Sue 92: cats: 9, cars: 7, perfumes: 7
-Sue 93: vizslas: 2, goldfish: 7, cats: 9
-Sue 94: akitas: 5, cars: 8, vizslas: 4
-Sue 95: goldfish: 7, vizslas: 1, perfumes: 2
-Sue 96: goldfish: 5, trees: 6, perfumes: 10
-Sue 97: trees: 0, perfumes: 7, cars: 0
-Sue 98: cars: 2, perfumes: 6, trees: 8
-Sue 99: trees: 10, children: 7, cats: 9
-Sue 100: samoyeds: 5, goldfish: 6, vizslas: 6
-Sue 101: cars: 10, perfumes: 9, vizslas: 3
-Sue 102: pomeranians: 6, trees: 1, samoyeds: 4
-Sue 103: cars: 2, perfumes: 1, goldfish: 5
-Sue 104: goldfish: 2, cars: 8, pomeranians: 2
-Sue 105: goldfish: 6, vizslas: 0, trees: 10
-Sue 106: trees: 10, akitas: 10, pomeranians: 0
-Sue 107: vizslas: 2, pomeranians: 10, trees: 3
-Sue 108: children: 3, vizslas: 8, akitas: 7
-Sue 109: perfumes: 2, akitas: 2, samoyeds: 3
-Sue 110: goldfish: 7, trees: 1, perfumes: 1
-Sue 111: akitas: 2, cars: 9, perfumes: 2
-Sue 112: children: 10, cars: 0, akitas: 3
-Sue 113: akitas: 9, vizslas: 4, children: 3
-Sue 114: pomeranians: 3, trees: 2, goldfish: 5
-Sue 115: perfumes: 8, cars: 6, trees: 0
-Sue 116: samoyeds: 6, children: 3, pomeranians: 1
-Sue 117: goldfish: 1, trees: 2, akitas: 1
-Sue 118: goldfish: 10, akitas: 10, samoyeds: 0
-Sue 119: vizslas: 10, perfumes: 6, cars: 0
-Sue 120: cars: 2, perfumes: 9, goldfish: 5
-Sue 121: vizslas: 2, trees: 2, cars: 6
-Sue 122: vizslas: 3, trees: 0, akitas: 2
-Sue 123: akitas: 5, samoyeds: 7, goldfish: 1
-Sue 124: goldfish: 8, samoyeds: 7, trees: 8
-Sue 125: trees: 3, goldfish: 8, perfumes: 5
-Sue 126: cats: 3, vizslas: 9, goldfish: 0
-Sue 127: pomeranians: 9, goldfish: 3, perfumes: 6
-Sue 128: vizslas: 4, cars: 8, goldfish: 5
-Sue 129: vizslas: 8, children: 5, perfumes: 8
-Sue 130: cars: 7, children: 7, cats: 3
-Sue 131: perfumes: 1, akitas: 8, vizslas: 9
-Sue 132: perfumes: 7, samoyeds: 10, pomeranians: 6
-Sue 133: cars: 5, perfumes: 3, goldfish: 7
-Sue 134: perfumes: 9, akitas: 2, cats: 3
-Sue 135: perfumes: 1, trees: 9, vizslas: 9
-Sue 136: akitas: 7, cars: 3, perfumes: 7
-Sue 137: vizslas: 9, goldfish: 8, cars: 5
-Sue 138: trees: 0, samoyeds: 1, cars: 3
-Sue 139: cars: 0, perfumes: 6, trees: 0
-Sue 140: pomeranians: 4, cars: 1, perfumes: 7
-Sue 141: vizslas: 10, akitas: 8, cats: 3
-Sue 142: trees: 1, cats: 6, vizslas: 5
-Sue 143: pomeranians: 9, cars: 7, perfumes: 9
-Sue 144: cars: 0, perfumes: 2, pomeranians: 1
-Sue 145: trees: 1, goldfish: 9, perfumes: 8
-Sue 146: cars: 8, children: 5, vizslas: 2
-Sue 147: perfumes: 2, goldfish: 5, cars: 0
-Sue 148: akitas: 2, perfumes: 7, pomeranians: 6
-Sue 149: goldfish: 8, cars: 0, trees: 1
-Sue 150: akitas: 6, perfumes: 5, trees: 0
-Sue 151: vizslas: 6, samoyeds: 8, akitas: 10
-Sue 152: trees: 7, akitas: 7, perfumes: 6
-Sue 153: goldfish: 9, cats: 9, cars: 3
-Sue 154: vizslas: 10, trees: 0, cars: 9
-Sue 155: perfumes: 3, children: 2, goldfish: 1
-Sue 156: goldfish: 7, perfumes: 5, akitas: 6
-Sue 157: cats: 10, trees: 1, goldfish: 0
-Sue 158: cats: 7, children: 7, vizslas: 6
-Sue 159: perfumes: 9, akitas: 0, cars: 0
-Sue 160: akitas: 3, goldfish: 10, pomeranians: 2
-Sue 161: goldfish: 10, cars: 6, perfumes: 3
-Sue 162: trees: 0, cars: 9, goldfish: 1
-Sue 163: cars: 8, perfumes: 9, vizslas: 5
-Sue 164: goldfish: 1, trees: 10, children: 6
-Sue 165: goldfish: 0, vizslas: 6, cars: 0
-Sue 166: akitas: 5, vizslas: 1, cars: 5
-Sue 167: vizslas: 1, samoyeds: 1, children: 4
-Sue 168: samoyeds: 7, vizslas: 7, akitas: 3
-Sue 169: goldfish: 3, cats: 9, trees: 2
-Sue 170: cars: 5, perfumes: 9, vizslas: 5
-Sue 171: goldfish: 7, cars: 6, perfumes: 10
-Sue 172: cats: 6, akitas: 1, children: 6
-Sue 173: cats: 4, goldfish: 1, children: 3
-Sue 174: cars: 2, pomeranians: 2, vizslas: 7
-Sue 175: trees: 0, children: 4, goldfish: 7
-Sue 176: children: 8, cars: 5, cats: 9
-Sue 177: pomeranians: 4, vizslas: 7, trees: 3
-Sue 178: vizslas: 6, perfumes: 10, akitas: 6
-Sue 179: cars: 4, akitas: 4, trees: 4
-Sue 180: akitas: 8, goldfish: 6, trees: 9
-Sue 181: perfumes: 3, vizslas: 10, cars: 3
-Sue 182: vizslas: 3, samoyeds: 3, goldfish: 7
-Sue 183: goldfish: 10, perfumes: 2, cats: 1
-Sue 184: goldfish: 5, trees: 1, perfumes: 1
-Sue 185: vizslas: 10, trees: 9, perfumes: 2
-Sue 186: goldfish: 6, perfumes: 9, trees: 1
-Sue 187: cars: 0, trees: 9, goldfish: 6
-Sue 188: cars: 0, trees: 1, vizslas: 9
-Sue 189: akitas: 7, vizslas: 2, trees: 0
-Sue 190: pomeranians: 5, perfumes: 8, akitas: 10
-Sue 191: vizslas: 5, akitas: 3, cats: 0
-Sue 192: children: 1, trees: 1, cars: 2
-Sue 193: cars: 3, goldfish: 9, trees: 2
-Sue 194: samoyeds: 3, akitas: 4, perfumes: 8
-Sue 195: trees: 1, vizslas: 8, akitas: 10
-Sue 196: akitas: 6, cars: 5, pomeranians: 0
-Sue 197: akitas: 5, vizslas: 5, cats: 1
-Sue 198: trees: 4, cars: 6, goldfish: 6
-Sue 199: cats: 7, cars: 5, goldfish: 6
-Sue 200: vizslas: 4, cats: 0, akitas: 9
-Sue 201: pomeranians: 1, perfumes: 4, children: 2
-Sue 202: cats: 1, perfumes: 4, vizslas: 3
-Sue 203: vizslas: 1, akitas: 9, children: 5
-Sue 204: perfumes: 8, cars: 7, trees: 4
-Sue 205: perfumes: 7, pomeranians: 5, cats: 9
-Sue 206: vizslas: 8, trees: 2, akitas: 2
-Sue 207: akitas: 6, vizslas: 2, perfumes: 10
-Sue 208: vizslas: 1, children: 7, akitas: 4
-Sue 209: perfumes: 4, trees: 2, children: 1
-Sue 210: goldfish: 0, vizslas: 2, samoyeds: 10
-Sue 211: cars: 8, perfumes: 3, trees: 1
-Sue 212: cars: 8, samoyeds: 5, pomeranians: 8
-Sue 213: akitas: 2, goldfish: 8, pomeranians: 2
-Sue 214: akitas: 6, pomeranians: 2, cars: 0
-Sue 215: trees: 10, pomeranians: 4, vizslas: 0
-Sue 216: perfumes: 0, cars: 8, trees: 0
-Sue 217: samoyeds: 8, akitas: 7, children: 10
-Sue 218: perfumes: 1, vizslas: 6, children: 0
-Sue 219: children: 1, goldfish: 4, trees: 1
-Sue 220: akitas: 10, goldfish: 10, trees: 5
-Sue 221: cars: 7, pomeranians: 6, perfumes: 3
-Sue 222: vizslas: 6, children: 0, akitas: 5
-Sue 223: perfumes: 9, cars: 1, trees: 6
-Sue 224: pomeranians: 1, trees: 0, vizslas: 0
-Sue 225: goldfish: 8, akitas: 4, perfumes: 10
-Sue 226: pomeranians: 7, cats: 7, children: 4
-Sue 227: trees: 0, akitas: 2, perfumes: 1
-Sue 228: vizslas: 6, cars: 10, perfumes: 9
-Sue 229: cars: 0, perfumes: 6, trees: 4
-Sue 230: pomeranians: 7, perfumes: 5, trees: 2
-Sue 231: goldfish: 9, cars: 6, trees: 7
-Sue 232: akitas: 1, vizslas: 5, cars: 3
-Sue 233: akitas: 7, samoyeds: 2, vizslas: 5
-Sue 234: akitas: 6, cats: 8, pomeranians: 0
-Sue 235: pomeranians: 5, akitas: 5, vizslas: 3
-Sue 236: goldfish: 5, trees: 6, akitas: 5
-Sue 237: goldfish: 9, perfumes: 5, cats: 5
-Sue 238: cats: 8, goldfish: 4, perfumes: 0
-Sue 239: samoyeds: 8, children: 6, pomeranians: 6
-Sue 240: akitas: 4, samoyeds: 10, trees: 8
-Sue 241: trees: 2, goldfish: 8, cars: 1
-Sue 242: perfumes: 2, cars: 0, akitas: 10
-Sue 243: pomeranians: 1, cars: 7, trees: 2
-Sue 244: trees: 9, vizslas: 2, akitas: 10
-Sue 245: cars: 9, pomeranians: 4, trees: 0
-Sue 246: cars: 9, pomeranians: 7, perfumes: 1
-Sue 247: trees: 0, goldfish: 1, akitas: 8
-Sue 248: vizslas: 1, cats: 4, akitas: 4
-Sue 249: cats: 6, children: 4, goldfish: 9
-Sue 250: vizslas: 1, cars: 10, samoyeds: 5
-Sue 251: cars: 0, goldfish: 1, vizslas: 7
-Sue 252: cars: 7, akitas: 9, vizslas: 10
-Sue 253: akitas: 7, vizslas: 2, perfumes: 5
-Sue 254: vizslas: 10, akitas: 5, samoyeds: 0
-Sue 255: pomeranians: 8, goldfish: 0, cats: 6
-Sue 256: cars: 10, goldfish: 8, vizslas: 9
-Sue 257: goldfish: 3, perfumes: 9, cats: 3
-Sue 258: trees: 6, goldfish: 6, cars: 6
-Sue 259: trees: 0, goldfish: 2, perfumes: 8
-Sue 260: trees: 5, akitas: 0, cars: 0
-Sue 261: pomeranians: 9, goldfish: 7, perfumes: 8
-Sue 262: perfumes: 8, vizslas: 6, goldfish: 2
-Sue 263: vizslas: 6, trees: 5, goldfish: 9
-Sue 264: vizslas: 4, perfumes: 7, cars: 9
-Sue 265: goldfish: 10, trees: 3, perfumes: 1
-Sue 266: trees: 10, akitas: 8, goldfish: 8
-Sue 267: goldfish: 4, trees: 0, samoyeds: 9
-Sue 268: vizslas: 1, trees: 0, goldfish: 8
-Sue 269: cars: 2, perfumes: 10, goldfish: 5
-Sue 270: perfumes: 7, cars: 2, vizslas: 1
-Sue 271: cars: 6, perfumes: 10, goldfish: 6
-Sue 272: samoyeds: 4, goldfish: 2, vizslas: 9
-Sue 273: perfumes: 4, goldfish: 4, vizslas: 1
-Sue 274: children: 4, cars: 4, perfumes: 3
-Sue 275: children: 8, vizslas: 3, trees: 2
-Sue 276: vizslas: 5, children: 7, perfumes: 3
-Sue 277: perfumes: 3, cats: 4, vizslas: 5
-Sue 278: cars: 1, samoyeds: 10, akitas: 2
-Sue 279: trees: 9, perfumes: 9, cars: 10
-Sue 280: vizslas: 5, trees: 0, perfumes: 6
-Sue 281: vizslas: 3, akitas: 10, pomeranians: 7
-Sue 282: trees: 1, children: 2, akitas: 8
-Sue 283: akitas: 9, goldfish: 6, cats: 5
-Sue 284: cars: 9, children: 10, pomeranians: 2
-Sue 285: pomeranians: 0, perfumes: 4, cars: 7
-Sue 286: perfumes: 0, vizslas: 10, akitas: 10
-Sue 287: cats: 2, perfumes: 3, trees: 5
-Sue 288: akitas: 9, vizslas: 8, samoyeds: 9
-Sue 289: perfumes: 6, children: 2, cars: 7
-Sue 290: akitas: 0, children: 5, cars: 5
-Sue 291: cars: 4, perfumes: 0, trees: 1
-Sue 292: cats: 0, cars: 8, perfumes: 6
-Sue 293: akitas: 9, cats: 5, children: 5
-Sue 294: akitas: 4, cars: 9, goldfish: 3
-Sue 295: cars: 2, akitas: 3, perfumes: 7
-Sue 296: perfumes: 4, cars: 7, goldfish: 10
-Sue 297: trees: 5, akitas: 8, vizslas: 1
-Sue 298: perfumes: 0, goldfish: 6, trees: 9
-Sue 299: perfumes: 6, samoyeds: 8, cars: 1
-Sue 300: goldfish: 10, perfumes: 4, akitas: 2
-Sue 301: cars: 3, trees: 0, goldfish: 8
-Sue 302: perfumes: 7, samoyeds: 2, vizslas: 7
-Sue 303: children: 10, goldfish: 7, perfumes: 2
-Sue 304: samoyeds: 8, vizslas: 2, cars: 1
-Sue 305: trees: 1, cats: 0, goldfish: 10
-Sue 306: trees: 4, perfumes: 2, cars: 7
-Sue 307: cars: 6, vizslas: 2, children: 6
-Sue 308: vizslas: 2, cars: 0, akitas: 7
-Sue 309: cars: 3, vizslas: 8, perfumes: 6
-Sue 310: goldfish: 7, perfumes: 7, vizslas: 3
-Sue 311: pomeranians: 10, trees: 2, cars: 0
-Sue 312: samoyeds: 2, vizslas: 9, akitas: 1
-Sue 313: cars: 4, pomeranians: 7, goldfish: 7
-Sue 314: akitas: 2, pomeranians: 9, samoyeds: 10
-Sue 315: akitas: 3, vizslas: 2, trees: 0
-Sue 316: cars: 0, perfumes: 4, pomeranians: 6
-Sue 317: akitas: 10, goldfish: 3, pomeranians: 7
-Sue 318: cars: 9, trees: 0, pomeranians: 9
-Sue 319: akitas: 3, vizslas: 7, children: 10
-Sue 320: vizslas: 0, akitas: 8, pomeranians: 4
-Sue 321: cars: 10, akitas: 9, vizslas: 3
-Sue 322: perfumes: 0, akitas: 8, vizslas: 6
-Sue 323: vizslas: 10, perfumes: 5, cars: 3
-Sue 324: akitas: 0, goldfish: 6, vizslas: 7
-Sue 325: perfumes: 9, vizslas: 5, pomeranians: 2
-Sue 326: vizslas: 6, goldfish: 10, pomeranians: 8
-Sue 327: vizslas: 10, cars: 1, akitas: 7
-Sue 328: trees: 1, perfumes: 10, cars: 10
-Sue 329: pomeranians: 5, samoyeds: 3, cars: 10
-Sue 330: akitas: 6, cars: 1, pomeranians: 4
-Sue 331: cars: 5, children: 2, trees: 0
-Sue 332: vizslas: 6, pomeranians: 1, perfumes: 0
-Sue 333: akitas: 7, trees: 1, cats: 9
-Sue 334: vizslas: 6, goldfish: 9, akitas: 7
-Sue 335: akitas: 3, samoyeds: 3, cars: 3
-Sue 336: samoyeds: 10, perfumes: 9, trees: 6
-Sue 337: vizslas: 2, cars: 9, akitas: 0
-Sue 338: akitas: 6, perfumes: 9, vizslas: 3
-Sue 339: cars: 3, samoyeds: 8, trees: 2
-Sue 340: cats: 7, perfumes: 8, cars: 9
-Sue 341: goldfish: 9, perfumes: 5, cars: 10
-Sue 342: trees: 0, akitas: 3, perfumes: 5
-Sue 343: perfumes: 2, children: 0, cars: 6
-Sue 344: goldfish: 8, trees: 8, perfumes: 0
-Sue 345: perfumes: 6, cars: 6, goldfish: 5
-Sue 346: vizslas: 8, trees: 1, cars: 6
-Sue 347: cars: 0, cats: 3, perfumes: 7
-Sue 348: children: 7, perfumes: 10, cars: 7
-Sue 349: pomeranians: 8, akitas: 5, children: 2
-Sue 350: perfumes: 9, pomeranians: 4, goldfish: 3
-Sue 351: perfumes: 8, pomeranians: 7, trees: 4
-Sue 352: samoyeds: 1, goldfish: 9, akitas: 8
-Sue 353: akitas: 6, goldfish: 10, vizslas: 8
-Sue 354: akitas: 7, cars: 2, goldfish: 6
-Sue 355: cars: 3, goldfish: 6, akitas: 5
-Sue 356: akitas: 2, goldfish: 9, pomeranians: 1
-Sue 357: goldfish: 10, cars: 6, pomeranians: 9
-Sue 358: trees: 0, children: 2, goldfish: 6
-Sue 359: samoyeds: 3, cars: 2, akitas: 4
-Sue 360: trees: 1, goldfish: 8, cars: 5
-Sue 361: akitas: 5, vizslas: 7, perfumes: 1
-Sue 362: cats: 5, vizslas: 9, children: 4
-Sue 363: goldfish: 9, perfumes: 3, vizslas: 9
-Sue 364: children: 7, samoyeds: 2, pomeranians: 10
-Sue 365: perfumes: 9, akitas: 10, pomeranians: 4
-Sue 366: cars: 10, trees: 3, cats: 4
-Sue 367: vizslas: 6, akitas: 10, perfumes: 5
-Sue 368: akitas: 9, vizslas: 9, children: 4
-Sue 369: goldfish: 8, trees: 2, perfumes: 5
-Sue 370: trees: 0, children: 4, cars: 8
-Sue 371: cats: 6, perfumes: 0, vizslas: 2
-Sue 372: akitas: 7, cars: 5, perfumes: 3
-Sue 373: cars: 0, perfumes: 4, pomeranians: 10
-Sue 374: akitas: 5, perfumes: 5, vizslas: 2
-Sue 375: goldfish: 7, trees: 10, pomeranians: 7
-Sue 376: cars: 8, trees: 1, pomeranians: 8
-Sue 377: cars: 0, akitas: 9, vizslas: 1
-Sue 378: akitas: 5, perfumes: 3, vizslas: 7
-Sue 379: trees: 2, goldfish: 8, pomeranians: 8
-Sue 380: akitas: 5, cars: 9, perfumes: 9
-Sue 381: cars: 2, perfumes: 6, trees: 3
-Sue 382: perfumes: 6, vizslas: 2, goldfish: 9
-Sue 383: akitas: 8, vizslas: 7, cats: 1
-Sue 384: akitas: 9, trees: 10, vizslas: 7
-Sue 385: cars: 0, perfumes: 7, vizslas: 2
-Sue 386: vizslas: 10, akitas: 4, perfumes: 9
-Sue 387: perfumes: 6, pomeranians: 5, samoyeds: 8
-Sue 388: vizslas: 10, trees: 9, goldfish: 9
-Sue 389: goldfish: 8, akitas: 4, perfumes: 10
-Sue 390: goldfish: 6, trees: 8, akitas: 1
-Sue 391: vizslas: 4, akitas: 10, goldfish: 7
-Sue 392: akitas: 1, vizslas: 6, samoyeds: 5
-Sue 393: trees: 6, cars: 3, akitas: 5
-Sue 394: goldfish: 9, trees: 3, cars: 5
-Sue 395: akitas: 6, samoyeds: 4, goldfish: 4
-Sue 396: akitas: 2, trees: 1, cats: 5
-Sue 397: cars: 0, children: 9, trees: 10
-Sue 398: pomeranians: 3, samoyeds: 9, goldfish: 10
-Sue 399: cars: 7, akitas: 4, goldfish: 8
-Sue 400: cars: 4, akitas: 5, vizslas: 4
-Sue 401: pomeranians: 5, akitas: 8, vizslas: 5
-Sue 402: cats: 7, cars: 6, goldfish: 6
-Sue 403: samoyeds: 8, perfumes: 4, cars: 5
-Sue 404: akitas: 10, goldfish: 4, trees: 2
-Sue 405: trees: 8, perfumes: 1, cars: 2
-Sue 406: trees: 0, perfumes: 9, pomeranians: 10
-Sue 407: perfumes: 4, trees: 7, goldfish: 3
-Sue 408: akitas: 1, perfumes: 3, cars: 5
-Sue 409: trees: 6, samoyeds: 3, cars: 9
-Sue 410: vizslas: 3, goldfish: 5, akitas: 7
-Sue 411: goldfish: 10, trees: 1, vizslas: 9
-Sue 412: cars: 0, akitas: 6, trees: 6
-Sue 413: goldfish: 7, trees: 0, cars: 3
-Sue 414: pomeranians: 10, samoyeds: 3, cars: 10
-Sue 415: perfumes: 6, trees: 9, cars: 4
-Sue 416: trees: 2, cars: 4, goldfish: 8
-Sue 417: goldfish: 2, cars: 9, cats: 5
-Sue 418: vizslas: 1, cars: 9, akitas: 0
-Sue 419: perfumes: 6, cats: 3, children: 9
-Sue 420: cats: 5, goldfish: 7, akitas: 9
-Sue 421: trees: 1, samoyeds: 6, pomeranians: 1
-Sue 422: trees: 10, goldfish: 6, children: 7
-Sue 423: cars: 8, goldfish: 7, vizslas: 3
-Sue 424: samoyeds: 9, akitas: 7, trees: 5
-Sue 425: akitas: 5, children: 4, perfumes: 9
-Sue 426: goldfish: 1, children: 9, cats: 2
-Sue 427: vizslas: 9, akitas: 7, goldfish: 9
-Sue 428: pomeranians: 7, akitas: 5, vizslas: 1
-Sue 429: vizslas: 7, goldfish: 7, cars: 9
-Sue 430: trees: 7, perfumes: 0, pomeranians: 5
-Sue 431: children: 9, perfumes: 5, vizslas: 7
-Sue 432: trees: 6, samoyeds: 7, cats: 1
-Sue 433: goldfish: 5, trees: 5, children: 6
-Sue 434: goldfish: 9, akitas: 7, cars: 3
-Sue 435: samoyeds: 10, perfumes: 2, cars: 0
-Sue 436: akitas: 5, pomeranians: 4, perfumes: 7
-Sue 437: vizslas: 5, cats: 6, perfumes: 5
-Sue 438: trees: 2, goldfish: 6, vizslas: 7
-Sue 439: samoyeds: 8, pomeranians: 10, goldfish: 1
-Sue 440: akitas: 6, children: 9, perfumes: 4
-Sue 441: cars: 2, goldfish: 9, children: 0
-Sue 442: goldfish: 7, cars: 2, vizslas: 8
-Sue 443: goldfish: 6, samoyeds: 3, perfumes: 2
-Sue 444: trees: 2, goldfish: 7, cars: 8
-Sue 445: trees: 2, pomeranians: 0, children: 0
-Sue 446: perfumes: 4, akitas: 4, goldfish: 6
-Sue 447: vizslas: 7, akitas: 9, cars: 3
-Sue 448: goldfish: 6, trees: 9, cars: 0
-Sue 449: samoyeds: 7, perfumes: 4, vizslas: 10
-Sue 450: akitas: 7, cars: 10, goldfish: 7
-Sue 451: goldfish: 4, children: 7, pomeranians: 4
-Sue 452: cats: 4, vizslas: 6, trees: 7
-Sue 453: cars: 1, trees: 10, goldfish: 9
-Sue 454: trees: 2, goldfish: 3, vizslas: 10
-Sue 455: pomeranians: 9, vizslas: 3, akitas: 2
-Sue 456: vizslas: 10, akitas: 2, goldfish: 1
-Sue 457: trees: 5, cats: 5, children: 8
-Sue 458: cars: 6, goldfish: 3, akitas: 9
-Sue 459: goldfish: 7, akitas: 2, cats: 7
-Sue 460: akitas: 1, cars: 5, children: 8
-Sue 461: cars: 8, perfumes: 0, goldfish: 6
-Sue 462: pomeranians: 6, cats: 2, perfumes: 6
-Sue 463: vizslas: 7, perfumes: 3, goldfish: 3
-Sue 464: akitas: 10, goldfish: 10, trees: 1
-Sue 465: vizslas: 0, akitas: 2, trees: 2
-Sue 466: perfumes: 6, akitas: 8, cars: 2
-Sue 467: goldfish: 1, cars: 10, perfumes: 3
-Sue 468: goldfish: 4, trees: 2, cars: 9
-Sue 469: perfumes: 6, pomeranians: 0, vizslas: 10
-Sue 470: samoyeds: 8, children: 0, akitas: 7
-Sue 471: children: 3, goldfish: 9, cats: 9
-Sue 472: samoyeds: 0, goldfish: 0, trees: 0
-Sue 473: trees: 3, goldfish: 4, vizslas: 1
-Sue 474: perfumes: 10, cars: 3, trees: 7
-Sue 475: akitas: 5, vizslas: 4, goldfish: 5
-Sue 476: children: 2, akitas: 7, vizslas: 3
-Sue 477: vizslas: 6, pomeranians: 9, trees: 6
-Sue 478: vizslas: 7, pomeranians: 6, akitas: 7
-Sue 479: trees: 2, perfumes: 2, children: 2
-Sue 480: cars: 8, cats: 5, vizslas: 0
-Sue 481: trees: 5, goldfish: 0, akitas: 3
-Sue 482: cars: 8, perfumes: 6, goldfish: 10
-Sue 483: goldfish: 0, cars: 3, perfumes: 10
-Sue 484: pomeranians: 1, samoyeds: 1, perfumes: 3
-Sue 485: trees: 0, akitas: 2, vizslas: 4
-Sue 486: cars: 3, vizslas: 8, goldfish: 1
-Sue 487: pomeranians: 9, vizslas: 2, children: 10
-Sue 488: akitas: 6, vizslas: 10, perfumes: 9
-Sue 489: goldfish: 6, vizslas: 4, cars: 2
-Sue 490: vizslas: 10, cats: 8, samoyeds: 1
-Sue 491: cats: 9, cars: 1, perfumes: 10
-Sue 492: goldfish: 6, cars: 9, pomeranians: 9
-Sue 493: children: 10, goldfish: 10, vizslas: 0
-Sue 494: pomeranians: 5, cars: 0, vizslas: 0
-Sue 495: vizslas: 7, perfumes: 6, samoyeds: 3
-Sue 496: trees: 1, cats: 4, cars: 10
-Sue 497: cats: 1, perfumes: 0, cars: 7
-Sue 498: perfumes: 7, vizslas: 6, cats: 9
-Sue 499: vizslas: 8, perfumes: 1, akitas: 3
-Sue 500: perfumes: 4, cars: 9, trees: 4
diff --git a/2015/d16/ex2/ex2.py b/2015/d16/ex2/ex2.py
deleted file mode 100755
index 5711b59..0000000
--- a/2015/d16/ex2/ex2.py
+++ /dev/null
@@ -1,69 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-from typing import NamedTuple
-
-
-class Sue(NamedTuple):
-    children: int | None = None
-    cats: int | None = None
-    samoyeds: int | None = None
-    pomeranians: int | None = None
-    akitas: int | None = None
-    vizslas: int | None = None
-    goldfish: int | None = None
-    trees: int | None = None
-    cars: int | None = None
-    perfumes: int | None = None
-
-    def matches(self, reading: dict[str, int | None]) -> bool:
-        for name, expected in reading.items():
-            assert expected is not None  # Sanity check
-            val = getattr(self, name)
-            if name in ("cats", "trees"):
-                if val is not None and val <= expected:
-                    return False
-            elif name in ("pomeranians", "goldfish"):
-                if val is not None and val >= expected:
-                    return False
-            else:
-                if val is not None and val != expected:
-                    return False
-        return True
-
-
-def solve(input: str) -> int:
-    def parse_line(input: str) -> Sue:
-        _, other = input.split(": ", 1)
-        raw_items = other.split(", ")
-        items = {
-            name: int(val) for name, val in (item.split(": ") for item in raw_items)
-        }
-        return Sue(**items)
-
-    def parse(input: str) -> list[Sue]:
-        return [parse_line(line) for line in input.splitlines()]
-
-    aunts = parse(input)
-    reading = Sue(
-        children=3,
-        cats=7,
-        samoyeds=2,
-        pomeranians=3,
-        akitas=0,
-        vizslas=0,
-        goldfish=5,
-        trees=3,
-        cars=2,
-        perfumes=1,
-    )
-    return next(i for i, sue in enumerate(aunts, 1) if sue.matches(reading._asdict()))
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d16/ex2/input b/2015/d16/ex2/input
deleted file mode 100644
index 92ed31c..0000000
--- a/2015/d16/ex2/input
+++ /dev/null
@@ -1,500 +0,0 @@
-Sue 1: goldfish: 6, trees: 9, akitas: 0
-Sue 2: goldfish: 7, trees: 1, akitas: 0
-Sue 3: cars: 10, akitas: 6, perfumes: 7
-Sue 4: perfumes: 2, vizslas: 0, cars: 6
-Sue 5: goldfish: 1, trees: 3, perfumes: 10
-Sue 6: children: 9, vizslas: 7, cars: 9
-Sue 7: cars: 6, vizslas: 5, cats: 3
-Sue 8: akitas: 10, vizslas: 9, children: 3
-Sue 9: vizslas: 8, cats: 2, trees: 1
-Sue 10: perfumes: 10, trees: 6, cars: 4
-Sue 11: cars: 9, children: 1, cats: 1
-Sue 12: pomeranians: 4, akitas: 6, goldfish: 8
-Sue 13: cats: 10, children: 5, trees: 9
-Sue 14: perfumes: 8, vizslas: 3, samoyeds: 1
-Sue 15: vizslas: 2, perfumes: 8, trees: 3
-Sue 16: pomeranians: 10, trees: 9, samoyeds: 4
-Sue 17: akitas: 7, vizslas: 0, goldfish: 6
-Sue 18: trees: 5, vizslas: 9, cars: 0
-Sue 19: akitas: 3, goldfish: 9, trees: 10
-Sue 20: perfumes: 7, samoyeds: 3, vizslas: 10
-Sue 21: perfumes: 7, pomeranians: 10, akitas: 8
-Sue 22: vizslas: 6, trees: 8, akitas: 10
-Sue 23: goldfish: 0, trees: 4, children: 9
-Sue 24: goldfish: 7, pomeranians: 9, akitas: 4
-Sue 25: cars: 7, trees: 4, pomeranians: 4
-Sue 26: trees: 9, akitas: 9, pomeranians: 7
-Sue 27: samoyeds: 0, perfumes: 9, goldfish: 10
-Sue 28: cars: 5, trees: 7, vizslas: 1
-Sue 29: perfumes: 9, trees: 1, children: 6
-Sue 30: goldfish: 10, trees: 0, cars: 4
-Sue 31: akitas: 2, perfumes: 5, goldfish: 5
-Sue 32: goldfish: 0, akitas: 5, trees: 0
-Sue 33: vizslas: 2, akitas: 2, samoyeds: 3
-Sue 34: goldfish: 8, perfumes: 5, cars: 3
-Sue 35: akitas: 1, cats: 4, trees: 9
-Sue 36: cars: 4, vizslas: 4, goldfish: 7
-Sue 37: akitas: 5, perfumes: 7, trees: 3
-Sue 38: goldfish: 10, trees: 2, vizslas: 9
-Sue 39: goldfish: 4, pomeranians: 5, vizslas: 5
-Sue 40: perfumes: 5, samoyeds: 4, akitas: 6
-Sue 41: goldfish: 9, cars: 4, perfumes: 5
-Sue 42: trees: 6, pomeranians: 9, goldfish: 8
-Sue 43: perfumes: 7, pomeranians: 1, akitas: 2
-Sue 44: vizslas: 9, cars: 5, cats: 0
-Sue 45: akitas: 1, goldfish: 6, trees: 0
-Sue 46: akitas: 5, vizslas: 8, trees: 2
-Sue 47: trees: 9, akitas: 2, vizslas: 9
-Sue 48: goldfish: 10, trees: 5, akitas: 2
-Sue 49: cars: 7, vizslas: 2, perfumes: 6
-Sue 50: akitas: 5, goldfish: 6, perfumes: 0
-Sue 51: cars: 9, cats: 7, trees: 5
-Sue 52: akitas: 7, goldfish: 10, cars: 0
-Sue 53: cars: 10, cats: 4, perfumes: 2
-Sue 54: goldfish: 2, pomeranians: 5, perfumes: 10
-Sue 55: vizslas: 5, akitas: 4, cars: 8
-Sue 56: goldfish: 9, vizslas: 4, akitas: 5
-Sue 57: perfumes: 8, samoyeds: 7, cars: 9
-Sue 58: cars: 5, akitas: 7, perfumes: 8
-Sue 59: samoyeds: 8, cars: 10, vizslas: 10
-Sue 60: akitas: 6, samoyeds: 0, goldfish: 3
-Sue 61: trees: 8, pomeranians: 0, akitas: 2
-Sue 62: trees: 1, perfumes: 3, vizslas: 4
-Sue 63: vizslas: 6, samoyeds: 9, goldfish: 8
-Sue 64: goldfish: 7, trees: 6, vizslas: 3
-Sue 65: cars: 1, vizslas: 0, akitas: 6
-Sue 66: cats: 6, pomeranians: 4, cars: 9
-Sue 67: trees: 10, pomeranians: 7, samoyeds: 3
-Sue 68: pomeranians: 5, goldfish: 9, akitas: 1
-Sue 69: akitas: 1, vizslas: 0, trees: 9
-Sue 70: cats: 4, goldfish: 4, vizslas: 10
-Sue 71: vizslas: 7, perfumes: 7, trees: 8
-Sue 72: children: 2, vizslas: 9, cats: 3
-Sue 73: cars: 8, pomeranians: 0, perfumes: 6
-Sue 74: akitas: 1, pomeranians: 8, vizslas: 10
-Sue 75: vizslas: 5, perfumes: 5, cars: 7
-Sue 76: cars: 3, vizslas: 3, goldfish: 0
-Sue 77: akitas: 9, samoyeds: 1, pomeranians: 3
-Sue 78: trees: 0, vizslas: 0, akitas: 6
-Sue 79: pomeranians: 9, cars: 1, perfumes: 0
-Sue 80: perfumes: 10, trees: 1, cats: 0
-Sue 81: goldfish: 5, akitas: 9, trees: 0
-Sue 82: vizslas: 1, akitas: 6, children: 4
-Sue 83: samoyeds: 7, perfumes: 8, pomeranians: 4
-Sue 84: perfumes: 3, children: 3, cats: 7
-Sue 85: goldfish: 9, trees: 3, cars: 9
-Sue 86: cars: 0, perfumes: 9, vizslas: 0
-Sue 87: children: 3, trees: 4, akitas: 3
-Sue 88: trees: 1, samoyeds: 1, goldfish: 0
-Sue 89: akitas: 8, cars: 3, vizslas: 9
-Sue 90: pomeranians: 9, trees: 9, goldfish: 8
-Sue 91: goldfish: 7, trees: 10, children: 0
-Sue 92: cats: 9, cars: 7, perfumes: 7
-Sue 93: vizslas: 2, goldfish: 7, cats: 9
-Sue 94: akitas: 5, cars: 8, vizslas: 4
-Sue 95: goldfish: 7, vizslas: 1, perfumes: 2
-Sue 96: goldfish: 5, trees: 6, perfumes: 10
-Sue 97: trees: 0, perfumes: 7, cars: 0
-Sue 98: cars: 2, perfumes: 6, trees: 8
-Sue 99: trees: 10, children: 7, cats: 9
-Sue 100: samoyeds: 5, goldfish: 6, vizslas: 6
-Sue 101: cars: 10, perfumes: 9, vizslas: 3
-Sue 102: pomeranians: 6, trees: 1, samoyeds: 4
-Sue 103: cars: 2, perfumes: 1, goldfish: 5
-Sue 104: goldfish: 2, cars: 8, pomeranians: 2
-Sue 105: goldfish: 6, vizslas: 0, trees: 10
-Sue 106: trees: 10, akitas: 10, pomeranians: 0
-Sue 107: vizslas: 2, pomeranians: 10, trees: 3
-Sue 108: children: 3, vizslas: 8, akitas: 7
-Sue 109: perfumes: 2, akitas: 2, samoyeds: 3
-Sue 110: goldfish: 7, trees: 1, perfumes: 1
-Sue 111: akitas: 2, cars: 9, perfumes: 2
-Sue 112: children: 10, cars: 0, akitas: 3
-Sue 113: akitas: 9, vizslas: 4, children: 3
-Sue 114: pomeranians: 3, trees: 2, goldfish: 5
-Sue 115: perfumes: 8, cars: 6, trees: 0
-Sue 116: samoyeds: 6, children: 3, pomeranians: 1
-Sue 117: goldfish: 1, trees: 2, akitas: 1
-Sue 118: goldfish: 10, akitas: 10, samoyeds: 0
-Sue 119: vizslas: 10, perfumes: 6, cars: 0
-Sue 120: cars: 2, perfumes: 9, goldfish: 5
-Sue 121: vizslas: 2, trees: 2, cars: 6
-Sue 122: vizslas: 3, trees: 0, akitas: 2
-Sue 123: akitas: 5, samoyeds: 7, goldfish: 1
-Sue 124: goldfish: 8, samoyeds: 7, trees: 8
-Sue 125: trees: 3, goldfish: 8, perfumes: 5
-Sue 126: cats: 3, vizslas: 9, goldfish: 0
-Sue 127: pomeranians: 9, goldfish: 3, perfumes: 6
-Sue 128: vizslas: 4, cars: 8, goldfish: 5
-Sue 129: vizslas: 8, children: 5, perfumes: 8
-Sue 130: cars: 7, children: 7, cats: 3
-Sue 131: perfumes: 1, akitas: 8, vizslas: 9
-Sue 132: perfumes: 7, samoyeds: 10, pomeranians: 6
-Sue 133: cars: 5, perfumes: 3, goldfish: 7
-Sue 134: perfumes: 9, akitas: 2, cats: 3
-Sue 135: perfumes: 1, trees: 9, vizslas: 9
-Sue 136: akitas: 7, cars: 3, perfumes: 7
-Sue 137: vizslas: 9, goldfish: 8, cars: 5
-Sue 138: trees: 0, samoyeds: 1, cars: 3
-Sue 139: cars: 0, perfumes: 6, trees: 0
-Sue 140: pomeranians: 4, cars: 1, perfumes: 7
-Sue 141: vizslas: 10, akitas: 8, cats: 3
-Sue 142: trees: 1, cats: 6, vizslas: 5
-Sue 143: pomeranians: 9, cars: 7, perfumes: 9
-Sue 144: cars: 0, perfumes: 2, pomeranians: 1
-Sue 145: trees: 1, goldfish: 9, perfumes: 8
-Sue 146: cars: 8, children: 5, vizslas: 2
-Sue 147: perfumes: 2, goldfish: 5, cars: 0
-Sue 148: akitas: 2, perfumes: 7, pomeranians: 6
-Sue 149: goldfish: 8, cars: 0, trees: 1
-Sue 150: akitas: 6, perfumes: 5, trees: 0
-Sue 151: vizslas: 6, samoyeds: 8, akitas: 10
-Sue 152: trees: 7, akitas: 7, perfumes: 6
-Sue 153: goldfish: 9, cats: 9, cars: 3
-Sue 154: vizslas: 10, trees: 0, cars: 9
-Sue 155: perfumes: 3, children: 2, goldfish: 1
-Sue 156: goldfish: 7, perfumes: 5, akitas: 6
-Sue 157: cats: 10, trees: 1, goldfish: 0
-Sue 158: cats: 7, children: 7, vizslas: 6
-Sue 159: perfumes: 9, akitas: 0, cars: 0
-Sue 160: akitas: 3, goldfish: 10, pomeranians: 2
-Sue 161: goldfish: 10, cars: 6, perfumes: 3
-Sue 162: trees: 0, cars: 9, goldfish: 1
-Sue 163: cars: 8, perfumes: 9, vizslas: 5
-Sue 164: goldfish: 1, trees: 10, children: 6
-Sue 165: goldfish: 0, vizslas: 6, cars: 0
-Sue 166: akitas: 5, vizslas: 1, cars: 5
-Sue 167: vizslas: 1, samoyeds: 1, children: 4
-Sue 168: samoyeds: 7, vizslas: 7, akitas: 3
-Sue 169: goldfish: 3, cats: 9, trees: 2
-Sue 170: cars: 5, perfumes: 9, vizslas: 5
-Sue 171: goldfish: 7, cars: 6, perfumes: 10
-Sue 172: cats: 6, akitas: 1, children: 6
-Sue 173: cats: 4, goldfish: 1, children: 3
-Sue 174: cars: 2, pomeranians: 2, vizslas: 7
-Sue 175: trees: 0, children: 4, goldfish: 7
-Sue 176: children: 8, cars: 5, cats: 9
-Sue 177: pomeranians: 4, vizslas: 7, trees: 3
-Sue 178: vizslas: 6, perfumes: 10, akitas: 6
-Sue 179: cars: 4, akitas: 4, trees: 4
-Sue 180: akitas: 8, goldfish: 6, trees: 9
-Sue 181: perfumes: 3, vizslas: 10, cars: 3
-Sue 182: vizslas: 3, samoyeds: 3, goldfish: 7
-Sue 183: goldfish: 10, perfumes: 2, cats: 1
-Sue 184: goldfish: 5, trees: 1, perfumes: 1
-Sue 185: vizslas: 10, trees: 9, perfumes: 2
-Sue 186: goldfish: 6, perfumes: 9, trees: 1
-Sue 187: cars: 0, trees: 9, goldfish: 6
-Sue 188: cars: 0, trees: 1, vizslas: 9
-Sue 189: akitas: 7, vizslas: 2, trees: 0
-Sue 190: pomeranians: 5, perfumes: 8, akitas: 10
-Sue 191: vizslas: 5, akitas: 3, cats: 0
-Sue 192: children: 1, trees: 1, cars: 2
-Sue 193: cars: 3, goldfish: 9, trees: 2
-Sue 194: samoyeds: 3, akitas: 4, perfumes: 8
-Sue 195: trees: 1, vizslas: 8, akitas: 10
-Sue 196: akitas: 6, cars: 5, pomeranians: 0
-Sue 197: akitas: 5, vizslas: 5, cats: 1
-Sue 198: trees: 4, cars: 6, goldfish: 6
-Sue 199: cats: 7, cars: 5, goldfish: 6
-Sue 200: vizslas: 4, cats: 0, akitas: 9
-Sue 201: pomeranians: 1, perfumes: 4, children: 2
-Sue 202: cats: 1, perfumes: 4, vizslas: 3
-Sue 203: vizslas: 1, akitas: 9, children: 5
-Sue 204: perfumes: 8, cars: 7, trees: 4
-Sue 205: perfumes: 7, pomeranians: 5, cats: 9
-Sue 206: vizslas: 8, trees: 2, akitas: 2
-Sue 207: akitas: 6, vizslas: 2, perfumes: 10
-Sue 208: vizslas: 1, children: 7, akitas: 4
-Sue 209: perfumes: 4, trees: 2, children: 1
-Sue 210: goldfish: 0, vizslas: 2, samoyeds: 10
-Sue 211: cars: 8, perfumes: 3, trees: 1
-Sue 212: cars: 8, samoyeds: 5, pomeranians: 8
-Sue 213: akitas: 2, goldfish: 8, pomeranians: 2
-Sue 214: akitas: 6, pomeranians: 2, cars: 0
-Sue 215: trees: 10, pomeranians: 4, vizslas: 0
-Sue 216: perfumes: 0, cars: 8, trees: 0
-Sue 217: samoyeds: 8, akitas: 7, children: 10
-Sue 218: perfumes: 1, vizslas: 6, children: 0
-Sue 219: children: 1, goldfish: 4, trees: 1
-Sue 220: akitas: 10, goldfish: 10, trees: 5
-Sue 221: cars: 7, pomeranians: 6, perfumes: 3
-Sue 222: vizslas: 6, children: 0, akitas: 5
-Sue 223: perfumes: 9, cars: 1, trees: 6
-Sue 224: pomeranians: 1, trees: 0, vizslas: 0
-Sue 225: goldfish: 8, akitas: 4, perfumes: 10
-Sue 226: pomeranians: 7, cats: 7, children: 4
-Sue 227: trees: 0, akitas: 2, perfumes: 1
-Sue 228: vizslas: 6, cars: 10, perfumes: 9
-Sue 229: cars: 0, perfumes: 6, trees: 4
-Sue 230: pomeranians: 7, perfumes: 5, trees: 2
-Sue 231: goldfish: 9, cars: 6, trees: 7
-Sue 232: akitas: 1, vizslas: 5, cars: 3
-Sue 233: akitas: 7, samoyeds: 2, vizslas: 5
-Sue 234: akitas: 6, cats: 8, pomeranians: 0
-Sue 235: pomeranians: 5, akitas: 5, vizslas: 3
-Sue 236: goldfish: 5, trees: 6, akitas: 5
-Sue 237: goldfish: 9, perfumes: 5, cats: 5
-Sue 238: cats: 8, goldfish: 4, perfumes: 0
-Sue 239: samoyeds: 8, children: 6, pomeranians: 6
-Sue 240: akitas: 4, samoyeds: 10, trees: 8
-Sue 241: trees: 2, goldfish: 8, cars: 1
-Sue 242: perfumes: 2, cars: 0, akitas: 10
-Sue 243: pomeranians: 1, cars: 7, trees: 2
-Sue 244: trees: 9, vizslas: 2, akitas: 10
-Sue 245: cars: 9, pomeranians: 4, trees: 0
-Sue 246: cars: 9, pomeranians: 7, perfumes: 1
-Sue 247: trees: 0, goldfish: 1, akitas: 8
-Sue 248: vizslas: 1, cats: 4, akitas: 4
-Sue 249: cats: 6, children: 4, goldfish: 9
-Sue 250: vizslas: 1, cars: 10, samoyeds: 5
-Sue 251: cars: 0, goldfish: 1, vizslas: 7
-Sue 252: cars: 7, akitas: 9, vizslas: 10
-Sue 253: akitas: 7, vizslas: 2, perfumes: 5
-Sue 254: vizslas: 10, akitas: 5, samoyeds: 0
-Sue 255: pomeranians: 8, goldfish: 0, cats: 6
-Sue 256: cars: 10, goldfish: 8, vizslas: 9
-Sue 257: goldfish: 3, perfumes: 9, cats: 3
-Sue 258: trees: 6, goldfish: 6, cars: 6
-Sue 259: trees: 0, goldfish: 2, perfumes: 8
-Sue 260: trees: 5, akitas: 0, cars: 0
-Sue 261: pomeranians: 9, goldfish: 7, perfumes: 8
-Sue 262: perfumes: 8, vizslas: 6, goldfish: 2
-Sue 263: vizslas: 6, trees: 5, goldfish: 9
-Sue 264: vizslas: 4, perfumes: 7, cars: 9
-Sue 265: goldfish: 10, trees: 3, perfumes: 1
-Sue 266: trees: 10, akitas: 8, goldfish: 8
-Sue 267: goldfish: 4, trees: 0, samoyeds: 9
-Sue 268: vizslas: 1, trees: 0, goldfish: 8
-Sue 269: cars: 2, perfumes: 10, goldfish: 5
-Sue 270: perfumes: 7, cars: 2, vizslas: 1
-Sue 271: cars: 6, perfumes: 10, goldfish: 6
-Sue 272: samoyeds: 4, goldfish: 2, vizslas: 9
-Sue 273: perfumes: 4, goldfish: 4, vizslas: 1
-Sue 274: children: 4, cars: 4, perfumes: 3
-Sue 275: children: 8, vizslas: 3, trees: 2
-Sue 276: vizslas: 5, children: 7, perfumes: 3
-Sue 277: perfumes: 3, cats: 4, vizslas: 5
-Sue 278: cars: 1, samoyeds: 10, akitas: 2
-Sue 279: trees: 9, perfumes: 9, cars: 10
-Sue 280: vizslas: 5, trees: 0, perfumes: 6
-Sue 281: vizslas: 3, akitas: 10, pomeranians: 7
-Sue 282: trees: 1, children: 2, akitas: 8
-Sue 283: akitas: 9, goldfish: 6, cats: 5
-Sue 284: cars: 9, children: 10, pomeranians: 2
-Sue 285: pomeranians: 0, perfumes: 4, cars: 7
-Sue 286: perfumes: 0, vizslas: 10, akitas: 10
-Sue 287: cats: 2, perfumes: 3, trees: 5
-Sue 288: akitas: 9, vizslas: 8, samoyeds: 9
-Sue 289: perfumes: 6, children: 2, cars: 7
-Sue 290: akitas: 0, children: 5, cars: 5
-Sue 291: cars: 4, perfumes: 0, trees: 1
-Sue 292: cats: 0, cars: 8, perfumes: 6
-Sue 293: akitas: 9, cats: 5, children: 5
-Sue 294: akitas: 4, cars: 9, goldfish: 3
-Sue 295: cars: 2, akitas: 3, perfumes: 7
-Sue 296: perfumes: 4, cars: 7, goldfish: 10
-Sue 297: trees: 5, akitas: 8, vizslas: 1
-Sue 298: perfumes: 0, goldfish: 6, trees: 9
-Sue 299: perfumes: 6, samoyeds: 8, cars: 1
-Sue 300: goldfish: 10, perfumes: 4, akitas: 2
-Sue 301: cars: 3, trees: 0, goldfish: 8
-Sue 302: perfumes: 7, samoyeds: 2, vizslas: 7
-Sue 303: children: 10, goldfish: 7, perfumes: 2
-Sue 304: samoyeds: 8, vizslas: 2, cars: 1
-Sue 305: trees: 1, cats: 0, goldfish: 10
-Sue 306: trees: 4, perfumes: 2, cars: 7
-Sue 307: cars: 6, vizslas: 2, children: 6
-Sue 308: vizslas: 2, cars: 0, akitas: 7
-Sue 309: cars: 3, vizslas: 8, perfumes: 6
-Sue 310: goldfish: 7, perfumes: 7, vizslas: 3
-Sue 311: pomeranians: 10, trees: 2, cars: 0
-Sue 312: samoyeds: 2, vizslas: 9, akitas: 1
-Sue 313: cars: 4, pomeranians: 7, goldfish: 7
-Sue 314: akitas: 2, pomeranians: 9, samoyeds: 10
-Sue 315: akitas: 3, vizslas: 2, trees: 0
-Sue 316: cars: 0, perfumes: 4, pomeranians: 6
-Sue 317: akitas: 10, goldfish: 3, pomeranians: 7
-Sue 318: cars: 9, trees: 0, pomeranians: 9
-Sue 319: akitas: 3, vizslas: 7, children: 10
-Sue 320: vizslas: 0, akitas: 8, pomeranians: 4
-Sue 321: cars: 10, akitas: 9, vizslas: 3
-Sue 322: perfumes: 0, akitas: 8, vizslas: 6
-Sue 323: vizslas: 10, perfumes: 5, cars: 3
-Sue 324: akitas: 0, goldfish: 6, vizslas: 7
-Sue 325: perfumes: 9, vizslas: 5, pomeranians: 2
-Sue 326: vizslas: 6, goldfish: 10, pomeranians: 8
-Sue 327: vizslas: 10, cars: 1, akitas: 7
-Sue 328: trees: 1, perfumes: 10, cars: 10
-Sue 329: pomeranians: 5, samoyeds: 3, cars: 10
-Sue 330: akitas: 6, cars: 1, pomeranians: 4
-Sue 331: cars: 5, children: 2, trees: 0
-Sue 332: vizslas: 6, pomeranians: 1, perfumes: 0
-Sue 333: akitas: 7, trees: 1, cats: 9
-Sue 334: vizslas: 6, goldfish: 9, akitas: 7
-Sue 335: akitas: 3, samoyeds: 3, cars: 3
-Sue 336: samoyeds: 10, perfumes: 9, trees: 6
-Sue 337: vizslas: 2, cars: 9, akitas: 0
-Sue 338: akitas: 6, perfumes: 9, vizslas: 3
-Sue 339: cars: 3, samoyeds: 8, trees: 2
-Sue 340: cats: 7, perfumes: 8, cars: 9
-Sue 341: goldfish: 9, perfumes: 5, cars: 10
-Sue 342: trees: 0, akitas: 3, perfumes: 5
-Sue 343: perfumes: 2, children: 0, cars: 6
-Sue 344: goldfish: 8, trees: 8, perfumes: 0
-Sue 345: perfumes: 6, cars: 6, goldfish: 5
-Sue 346: vizslas: 8, trees: 1, cars: 6
-Sue 347: cars: 0, cats: 3, perfumes: 7
-Sue 348: children: 7, perfumes: 10, cars: 7
-Sue 349: pomeranians: 8, akitas: 5, children: 2
-Sue 350: perfumes: 9, pomeranians: 4, goldfish: 3
-Sue 351: perfumes: 8, pomeranians: 7, trees: 4
-Sue 352: samoyeds: 1, goldfish: 9, akitas: 8
-Sue 353: akitas: 6, goldfish: 10, vizslas: 8
-Sue 354: akitas: 7, cars: 2, goldfish: 6
-Sue 355: cars: 3, goldfish: 6, akitas: 5
-Sue 356: akitas: 2, goldfish: 9, pomeranians: 1
-Sue 357: goldfish: 10, cars: 6, pomeranians: 9
-Sue 358: trees: 0, children: 2, goldfish: 6
-Sue 359: samoyeds: 3, cars: 2, akitas: 4
-Sue 360: trees: 1, goldfish: 8, cars: 5
-Sue 361: akitas: 5, vizslas: 7, perfumes: 1
-Sue 362: cats: 5, vizslas: 9, children: 4
-Sue 363: goldfish: 9, perfumes: 3, vizslas: 9
-Sue 364: children: 7, samoyeds: 2, pomeranians: 10
-Sue 365: perfumes: 9, akitas: 10, pomeranians: 4
-Sue 366: cars: 10, trees: 3, cats: 4
-Sue 367: vizslas: 6, akitas: 10, perfumes: 5
-Sue 368: akitas: 9, vizslas: 9, children: 4
-Sue 369: goldfish: 8, trees: 2, perfumes: 5
-Sue 370: trees: 0, children: 4, cars: 8
-Sue 371: cats: 6, perfumes: 0, vizslas: 2
-Sue 372: akitas: 7, cars: 5, perfumes: 3
-Sue 373: cars: 0, perfumes: 4, pomeranians: 10
-Sue 374: akitas: 5, perfumes: 5, vizslas: 2
-Sue 375: goldfish: 7, trees: 10, pomeranians: 7
-Sue 376: cars: 8, trees: 1, pomeranians: 8
-Sue 377: cars: 0, akitas: 9, vizslas: 1
-Sue 378: akitas: 5, perfumes: 3, vizslas: 7
-Sue 379: trees: 2, goldfish: 8, pomeranians: 8
-Sue 380: akitas: 5, cars: 9, perfumes: 9
-Sue 381: cars: 2, perfumes: 6, trees: 3
-Sue 382: perfumes: 6, vizslas: 2, goldfish: 9
-Sue 383: akitas: 8, vizslas: 7, cats: 1
-Sue 384: akitas: 9, trees: 10, vizslas: 7
-Sue 385: cars: 0, perfumes: 7, vizslas: 2
-Sue 386: vizslas: 10, akitas: 4, perfumes: 9
-Sue 387: perfumes: 6, pomeranians: 5, samoyeds: 8
-Sue 388: vizslas: 10, trees: 9, goldfish: 9
-Sue 389: goldfish: 8, akitas: 4, perfumes: 10
-Sue 390: goldfish: 6, trees: 8, akitas: 1
-Sue 391: vizslas: 4, akitas: 10, goldfish: 7
-Sue 392: akitas: 1, vizslas: 6, samoyeds: 5
-Sue 393: trees: 6, cars: 3, akitas: 5
-Sue 394: goldfish: 9, trees: 3, cars: 5
-Sue 395: akitas: 6, samoyeds: 4, goldfish: 4
-Sue 396: akitas: 2, trees: 1, cats: 5
-Sue 397: cars: 0, children: 9, trees: 10
-Sue 398: pomeranians: 3, samoyeds: 9, goldfish: 10
-Sue 399: cars: 7, akitas: 4, goldfish: 8
-Sue 400: cars: 4, akitas: 5, vizslas: 4
-Sue 401: pomeranians: 5, akitas: 8, vizslas: 5
-Sue 402: cats: 7, cars: 6, goldfish: 6
-Sue 403: samoyeds: 8, perfumes: 4, cars: 5
-Sue 404: akitas: 10, goldfish: 4, trees: 2
-Sue 405: trees: 8, perfumes: 1, cars: 2
-Sue 406: trees: 0, perfumes: 9, pomeranians: 10
-Sue 407: perfumes: 4, trees: 7, goldfish: 3
-Sue 408: akitas: 1, perfumes: 3, cars: 5
-Sue 409: trees: 6, samoyeds: 3, cars: 9
-Sue 410: vizslas: 3, goldfish: 5, akitas: 7
-Sue 411: goldfish: 10, trees: 1, vizslas: 9
-Sue 412: cars: 0, akitas: 6, trees: 6
-Sue 413: goldfish: 7, trees: 0, cars: 3
-Sue 414: pomeranians: 10, samoyeds: 3, cars: 10
-Sue 415: perfumes: 6, trees: 9, cars: 4
-Sue 416: trees: 2, cars: 4, goldfish: 8
-Sue 417: goldfish: 2, cars: 9, cats: 5
-Sue 418: vizslas: 1, cars: 9, akitas: 0
-Sue 419: perfumes: 6, cats: 3, children: 9
-Sue 420: cats: 5, goldfish: 7, akitas: 9
-Sue 421: trees: 1, samoyeds: 6, pomeranians: 1
-Sue 422: trees: 10, goldfish: 6, children: 7
-Sue 423: cars: 8, goldfish: 7, vizslas: 3
-Sue 424: samoyeds: 9, akitas: 7, trees: 5
-Sue 425: akitas: 5, children: 4, perfumes: 9
-Sue 426: goldfish: 1, children: 9, cats: 2
-Sue 427: vizslas: 9, akitas: 7, goldfish: 9
-Sue 428: pomeranians: 7, akitas: 5, vizslas: 1
-Sue 429: vizslas: 7, goldfish: 7, cars: 9
-Sue 430: trees: 7, perfumes: 0, pomeranians: 5
-Sue 431: children: 9, perfumes: 5, vizslas: 7
-Sue 432: trees: 6, samoyeds: 7, cats: 1
-Sue 433: goldfish: 5, trees: 5, children: 6
-Sue 434: goldfish: 9, akitas: 7, cars: 3
-Sue 435: samoyeds: 10, perfumes: 2, cars: 0
-Sue 436: akitas: 5, pomeranians: 4, perfumes: 7
-Sue 437: vizslas: 5, cats: 6, perfumes: 5
-Sue 438: trees: 2, goldfish: 6, vizslas: 7
-Sue 439: samoyeds: 8, pomeranians: 10, goldfish: 1
-Sue 440: akitas: 6, children: 9, perfumes: 4
-Sue 441: cars: 2, goldfish: 9, children: 0
-Sue 442: goldfish: 7, cars: 2, vizslas: 8
-Sue 443: goldfish: 6, samoyeds: 3, perfumes: 2
-Sue 444: trees: 2, goldfish: 7, cars: 8
-Sue 445: trees: 2, pomeranians: 0, children: 0
-Sue 446: perfumes: 4, akitas: 4, goldfish: 6
-Sue 447: vizslas: 7, akitas: 9, cars: 3
-Sue 448: goldfish: 6, trees: 9, cars: 0
-Sue 449: samoyeds: 7, perfumes: 4, vizslas: 10
-Sue 450: akitas: 7, cars: 10, goldfish: 7
-Sue 451: goldfish: 4, children: 7, pomeranians: 4
-Sue 452: cats: 4, vizslas: 6, trees: 7
-Sue 453: cars: 1, trees: 10, goldfish: 9
-Sue 454: trees: 2, goldfish: 3, vizslas: 10
-Sue 455: pomeranians: 9, vizslas: 3, akitas: 2
-Sue 456: vizslas: 10, akitas: 2, goldfish: 1
-Sue 457: trees: 5, cats: 5, children: 8
-Sue 458: cars: 6, goldfish: 3, akitas: 9
-Sue 459: goldfish: 7, akitas: 2, cats: 7
-Sue 460: akitas: 1, cars: 5, children: 8
-Sue 461: cars: 8, perfumes: 0, goldfish: 6
-Sue 462: pomeranians: 6, cats: 2, perfumes: 6
-Sue 463: vizslas: 7, perfumes: 3, goldfish: 3
-Sue 464: akitas: 10, goldfish: 10, trees: 1
-Sue 465: vizslas: 0, akitas: 2, trees: 2
-Sue 466: perfumes: 6, akitas: 8, cars: 2
-Sue 467: goldfish: 1, cars: 10, perfumes: 3
-Sue 468: goldfish: 4, trees: 2, cars: 9
-Sue 469: perfumes: 6, pomeranians: 0, vizslas: 10
-Sue 470: samoyeds: 8, children: 0, akitas: 7
-Sue 471: children: 3, goldfish: 9, cats: 9
-Sue 472: samoyeds: 0, goldfish: 0, trees: 0
-Sue 473: trees: 3, goldfish: 4, vizslas: 1
-Sue 474: perfumes: 10, cars: 3, trees: 7
-Sue 475: akitas: 5, vizslas: 4, goldfish: 5
-Sue 476: children: 2, akitas: 7, vizslas: 3
-Sue 477: vizslas: 6, pomeranians: 9, trees: 6
-Sue 478: vizslas: 7, pomeranians: 6, akitas: 7
-Sue 479: trees: 2, perfumes: 2, children: 2
-Sue 480: cars: 8, cats: 5, vizslas: 0
-Sue 481: trees: 5, goldfish: 0, akitas: 3
-Sue 482: cars: 8, perfumes: 6, goldfish: 10
-Sue 483: goldfish: 0, cars: 3, perfumes: 10
-Sue 484: pomeranians: 1, samoyeds: 1, perfumes: 3
-Sue 485: trees: 0, akitas: 2, vizslas: 4
-Sue 486: cars: 3, vizslas: 8, goldfish: 1
-Sue 487: pomeranians: 9, vizslas: 2, children: 10
-Sue 488: akitas: 6, vizslas: 10, perfumes: 9
-Sue 489: goldfish: 6, vizslas: 4, cars: 2
-Sue 490: vizslas: 10, cats: 8, samoyeds: 1
-Sue 491: cats: 9, cars: 1, perfumes: 10
-Sue 492: goldfish: 6, cars: 9, pomeranians: 9
-Sue 493: children: 10, goldfish: 10, vizslas: 0
-Sue 494: pomeranians: 5, cars: 0, vizslas: 0
-Sue 495: vizslas: 7, perfumes: 6, samoyeds: 3
-Sue 496: trees: 1, cats: 4, cars: 10
-Sue 497: cats: 1, perfumes: 0, cars: 7
-Sue 498: perfumes: 7, vizslas: 6, cats: 9
-Sue 499: vizslas: 8, perfumes: 1, akitas: 3
-Sue 500: perfumes: 4, cars: 9, trees: 4
diff --git a/2015/d17/ex1/ex1.py b/2015/d17/ex1/ex1.py
deleted file mode 100755
index 8cbeb5b..0000000
--- a/2015/d17/ex1/ex1.py
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/bin/env python
-
-import itertools
-import sys
-
-TOTAL_EGGNOG = 150
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> list[int]:
-        return [int(line) for line in input.splitlines()]
-
-    containers = parse(input)
-    return sum(
-        sum(combination) == TOTAL_EGGNOG
-        for combination in itertools.chain.from_iterable(
-            itertools.combinations(containers, i) for i in range(1, len(containers) + 1)
-        )
-    )
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d17/ex1/input b/2015/d17/ex1/input
deleted file mode 100644
index 09ebd46..0000000
--- a/2015/d17/ex1/input
+++ /dev/null
@@ -1,20 +0,0 @@
-43
-3
-4
-10
-21
-44
-4
-6
-47
-41
-34
-17
-17
-44
-36
-31
-46
-9
-27
-38
diff --git a/2015/d17/ex2/ex2.py b/2015/d17/ex2/ex2.py
deleted file mode 100755
index 1c1cdda..0000000
--- a/2015/d17/ex2/ex2.py
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/usr/bin/env python
-
-import itertools
-import sys
-
-TOTAL_EGGNOG = 150
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> list[int]:
-        return [int(line) for line in input.splitlines()]
-
-    containers = parse(input)
-    min_containers = min(
-        i
-        for i in range(1, len(containers) + 1)
-        if any(
-            sum(combination) == TOTAL_EGGNOG
-            for combination in itertools.combinations(containers, i)
-        )
-    )
-    return sum(
-        sum(combination) == TOTAL_EGGNOG
-        for combination in itertools.combinations(containers, min_containers)
-    )
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d17/ex2/input b/2015/d17/ex2/input
deleted file mode 100644
index 09ebd46..0000000
--- a/2015/d17/ex2/input
+++ /dev/null
@@ -1,20 +0,0 @@
-43
-3
-4
-10
-21
-44
-4
-6
-47
-41
-34
-17
-17
-44
-36
-31
-46
-9
-27
-38
diff --git a/2015/d18/ex1/ex1.py b/2015/d18/ex1/ex1.py
deleted file mode 100755
index 4c9aec2..0000000
--- a/2015/d18/ex1/ex1.py
+++ /dev/null
@@ -1,57 +0,0 @@
-#!/usr/bin/env python
-
-import itertools
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> set[Point]:
-        return {
-            Point(x, y)
-            for x, line in enumerate(input.splitlines())
-            for y, c in enumerate(line)
-            if c == "#"
-        }
-
-    def neighbours(p: Point) -> Iterator[Point]:
-        for dx, dy in itertools.product((-1, 0, 1), repeat=2):
-            if dx == 0 and dy == 0:
-                continue
-            yield Point(p.x + dx, p.y + dy)
-
-    def step(lights: set[Point], dimensions: Point) -> set[Point]:
-        res: set[Point] = set()
-        for p in map(
-            Point._make,
-            itertools.product(range(dimensions.x), range(dimensions.y)),
-        ):
-            num_alive = sum(n in lights for n in neighbours(p))
-            if p in lights and num_alive not in (2, 3):
-                continue
-            if p not in lights and num_alive != 3:
-                continue
-            res.add(p)
-
-        return res
-
-    lights = parse(input)
-    dimensions = Point(100, 100)
-    for _ in range(100):
-        lights = step(lights, dimensions)
-    return len(lights)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d18/ex1/input b/2015/d18/ex1/input
deleted file mode 100644
index e91a2a7..0000000
--- a/2015/d18/ex1/input
+++ /dev/null
@@ -1,100 +0,0 @@
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-.#...##.#####..##.......#..####.###.##.#..###.###.....#.#.####.##.###..##...###....#.##.....#.#.#.##
-.....#.#.....#..###..####..#.....##.#..###.####.#.######..##......#####.#.##.#########.###..#.##.#.#
-...###......#.#..###..#.#.....#.##..#.##..###...#.##.#..#..#.##.#..##......##.##.##.######...#....##
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-#.#####.......#####...#...####.#.#.#....#.###.#.##.#####..#.###.#..##.##.#.##....#.##..#....####.#.#
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diff --git a/2015/d18/ex2/ex2.py b/2015/d18/ex2/ex2.py
deleted file mode 100755
index f39b6da..0000000
--- a/2015/d18/ex2/ex2.py
+++ /dev/null
@@ -1,70 +0,0 @@
-#!/usr/bin/env python
-
-import itertools
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> set[Point]:
-        return {
-            Point(x, y)
-            for x, line in enumerate(input.splitlines())
-            for y, c in enumerate(line)
-            if c == "#"
-        }
-
-    def neighbours(p: Point) -> Iterator[Point]:
-        for dx, dy in itertools.product((-1, 0, 1), repeat=2):
-            if dx == 0 and dy == 0:
-                continue
-            yield Point(p.x + dx, p.y + dy)
-
-    def step(lights: set[Point], dimensions: Point) -> set[Point]:
-        res = {
-            # Four corners are stuck on
-            Point(0, 0),
-            Point(0, dimensions.y - 1),
-            Point(dimensions.x - 1, 0),
-            Point(dimensions.x - 1, dimensions.y - 1),
-        }
-        for p in map(
-            Point._make,
-            itertools.product(range(dimensions.x), range(dimensions.y)),
-        ):
-            num_alive = sum(n in lights for n in neighbours(p))
-            if p in lights and num_alive not in (2, 3):
-                continue
-            if p not in lights and num_alive != 3:
-                continue
-            res.add(p)
-
-        return res
-
-    lights = parse(input)
-    dimensions = Point(100, 100)
-    lights |= {
-        # Four corners are stuck on
-        Point(0, 0),
-        Point(0, dimensions.y - 1),
-        Point(dimensions.x - 1, 0),
-        Point(dimensions.x - 1, dimensions.y - 1),
-    }
-    for _ in range(100):
-        lights = step(lights, dimensions)
-    return len(lights)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d18/ex2/input b/2015/d18/ex2/input
deleted file mode 100644
index e91a2a7..0000000
--- a/2015/d18/ex2/input
+++ /dev/null
@@ -1,100 +0,0 @@
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-..#...#.###.###....##.#..#.##..####.##.#.##.##.##...###.####..#.#.#.##.#.#.#..###..##.##.##.##.#..##
-#...............##.....######.#.#####.##.#....#.#..#.##...#.##....#........##.##...#.##.##.#..#.##.#
-#..##..#.#.#.##.#..#.#.##.##...#...#..#.#.##..#.#...###...##...###..#####.#.#..#..#.#..#.#.##...##.#
-.#######.#.....##...#.#.####.######.#..#......#....##.#.#..#..###.#...###...#....#.#..#.##.#...#.#..
-#.###......##.#.##..#.###.###..####..##....#..###......##..##..#####.####....#...###.....###.#..#...
-###...#....###.#..#.###.##...###.##.......##.##.#.#.#....####....###..##.###...#..##....#.#.##..##..
-.##.......##.######.#.#..#..##....#####.###.#.##.....####....#......####....#.##.#.##..#.##...##.#.#
-.#.###...#.#.#.##.###..###...##..#.##.##..##..#.....###.#..#.##.##.####........##.#####.#.#....#...#
-##...##..#.##.#######.###.#.##.#####....##.....##.#.....#.#.##.#....#.##.#....##.#..#.###..#..#.#...
-.#..#.#.#.#...#.##...###.##.#.#...###.##...#.#..###....###.#.###...##..###..#..##.##....###...###.##
diff --git a/2015/d19/ex1/ex1.py b/2015/d19/ex1/ex1.py
deleted file mode 100755
index 4f038b2..0000000
--- a/2015/d19/ex1/ex1.py
+++ /dev/null
@@ -1,45 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import sys
-from collections.abc import Iterator
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> tuple[dict[str, list[str]], str]:
-        raw_replacements, molecule = input.strip().split("\n\n")
-        res: dict[str, list[str]] = collections.defaultdict(list)
-        for start, end in (
-            line.split(" => ") for line in raw_replacements.splitlines()
-        ):
-            res[start].append(end)
-        return res, molecule
-
-    def replace_needle(input: str, needle: str, to: str) -> Iterator[str]:
-        assert needle in input  # Sanity check
-        i = input.find(needle)
-        while i != -1:
-            yield input[:i] + to + input[i + len(needle) :]
-            i = input.find(needle, i + 1)
-
-    def do_replacements(
-        replacements: dict[str, list[str]], molecule: str
-    ) -> Iterator[str]:
-        for needle, vals in replacements.items():
-            if needle not in molecule:
-                continue
-            for to in vals:
-                yield from replace_needle(molecule, needle, to)
-
-    replacements, molecule = parse(input)
-    new_molecules = set(do_replacements(replacements, molecule))
-    return len(new_molecules)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d19/ex1/input b/2015/d19/ex1/input
deleted file mode 100644
index 806774f..0000000
--- a/2015/d19/ex1/input
+++ /dev/null
@@ -1,45 +0,0 @@
-Al => ThF
-Al => ThRnFAr
-B => BCa
-B => TiB
-B => TiRnFAr
-Ca => CaCa
-Ca => PB
-Ca => PRnFAr
-Ca => SiRnFYFAr
-Ca => SiRnMgAr
-Ca => SiTh
-F => CaF
-F => PMg
-F => SiAl
-H => CRnAlAr
-H => CRnFYFYFAr
-H => CRnFYMgAr
-H => CRnMgYFAr
-H => HCa
-H => NRnFYFAr
-H => NRnMgAr
-H => NTh
-H => OB
-H => ORnFAr
-Mg => BF
-Mg => TiMg
-N => CRnFAr
-N => HSi
-O => CRnFYFAr
-O => CRnMgAr
-O => HP
-O => NRnFAr
-O => OTi
-P => CaP
-P => PTi
-P => SiRnFAr
-Si => CaSi
-Th => ThCa
-Ti => BP
-Ti => TiTi
-e => HF
-e => NAl
-e => OMg
-
-CRnCaSiRnBSiRnFArTiBPTiTiBFArPBCaSiThSiRnTiBPBPMgArCaSiRnTiMgArCaSiThCaSiRnFArRnSiRnFArTiTiBFArCaCaSiRnSiThCaCaSiRnMgArFYSiRnFYCaFArSiThCaSiThPBPTiMgArCaPRnSiAlArPBCaCaSiRnFYSiThCaRnFArArCaCaSiRnPBSiRnFArMgYCaCaCaCaSiThCaCaSiAlArCaCaSiRnPBSiAlArBCaCaCaCaSiThCaPBSiThPBPBCaSiRnFYFArSiThCaSiRnFArBCaCaSiRnFYFArSiThCaPBSiThCaSiRnPMgArRnFArPTiBCaPRnFArCaCaCaCaSiRnCaCaSiRnFYFArFArBCaSiThFArThSiThSiRnTiRnPMgArFArCaSiThCaPBCaSiRnBFArCaCaPRnCaCaPMgArSiRnFYFArCaSiThRnPBPMgAr
diff --git a/2015/d19/ex2/ex2.py b/2015/d19/ex2/ex2.py
deleted file mode 100755
index 4195e9b..0000000
--- a/2015/d19/ex2/ex2.py
+++ /dev/null
@@ -1,49 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import sys
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> tuple[dict[str, list[str]], str]:
-        raw_replacements, molecule = input.strip().split("\n\n")
-        res: dict[str, list[str]] = collections.defaultdict(list)
-        for start, end in (
-            line.split(" => ") for line in raw_replacements.splitlines()
-        ):
-            res[start].append(end)
-        return res, molecule
-
-    def inverse(input: dict[str, list[str]]) -> dict[str, str]:
-        res: dict[str, str] = {}
-        for key, vals in input.items():
-            for val in vals:
-                res[val] = key
-        assert len(res) == sum(map(len, input.values()))  # Sanity check
-        return res
-
-    def build(replacements: dict[str, list[str]], molecule: str) -> int:
-        # We will be "building down" to the electron, so inverse the replacement mapping
-        inversed_replacements = inverse(replacements)
-        # Order the replacement needles to try the longest ones first
-        needles = sorted(inversed_replacements.keys(), key=len, reverse=True)
-        res = 0
-        while molecule != "e":
-            for needle in needles:
-                if needle not in molecule:
-                    continue
-                res += 1
-                molecule = molecule.replace(needle, inversed_replacements[needle], 1)
-        return res
-
-    replacements, molecule = parse(input)
-    return build(replacements, molecule)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d19/ex2/input b/2015/d19/ex2/input
deleted file mode 100644
index 806774f..0000000
--- a/2015/d19/ex2/input
+++ /dev/null
@@ -1,45 +0,0 @@
-Al => ThF
-Al => ThRnFAr
-B => BCa
-B => TiB
-B => TiRnFAr
-Ca => CaCa
-Ca => PB
-Ca => PRnFAr
-Ca => SiRnFYFAr
-Ca => SiRnMgAr
-Ca => SiTh
-F => CaF
-F => PMg
-F => SiAl
-H => CRnAlAr
-H => CRnFYFYFAr
-H => CRnFYMgAr
-H => CRnMgYFAr
-H => HCa
-H => NRnFYFAr
-H => NRnMgAr
-H => NTh
-H => OB
-H => ORnFAr
-Mg => BF
-Mg => TiMg
-N => CRnFAr
-N => HSi
-O => CRnFYFAr
-O => CRnMgAr
-O => HP
-O => NRnFAr
-O => OTi
-P => CaP
-P => PTi
-P => SiRnFAr
-Si => CaSi
-Th => ThCa
-Ti => BP
-Ti => TiTi
-e => HF
-e => NAl
-e => OMg
-
-CRnCaSiRnBSiRnFArTiBPTiTiBFArPBCaSiThSiRnTiBPBPMgArCaSiRnTiMgArCaSiThCaSiRnFArRnSiRnFArTiTiBFArCaCaSiRnSiThCaCaSiRnMgArFYSiRnFYCaFArSiThCaSiThPBPTiMgArCaPRnSiAlArPBCaCaSiRnFYSiThCaRnFArArCaCaSiRnPBSiRnFArMgYCaCaCaCaSiThCaCaSiAlArCaCaSiRnPBSiAlArBCaCaCaCaSiThCaPBSiThPBPBCaSiRnFYFArSiThCaSiRnFArBCaCaSiRnFYFArSiThCaPBSiThCaSiRnPMgArRnFArPTiBCaPRnFArCaCaCaCaSiRnCaCaSiRnFYFArFArBCaSiThFArThSiThSiRnTiRnPMgArFArCaSiThCaPBCaSiRnBFArCaCaPRnCaCaPMgArSiRnFYFArCaSiThRnPBPMgAr
diff --git a/2015/d20/ex1/ex1.py b/2015/d20/ex1/ex1.py
deleted file mode 100755
index 5892642..0000000
--- a/2015/d20/ex1/ex1.py
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-
-
-def solve(input: str) -> int:
-    needed = int(input.strip())
-    presents = [0] * (needed // 10)  # Surely this should be enough houses
-    for i in range(1, len(presents)):
-        for j in range(i, len(presents), i):
-            presents[j] += 10 * i
-    for i, total in enumerate(presents):
-        if total >= needed:
-            return i
-    assert False  # Sanity check
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d20/ex1/input b/2015/d20/ex1/input
deleted file mode 100644
index f0d8336..0000000
--- a/2015/d20/ex1/input
+++ /dev/null
@@ -1 +0,0 @@
-36000000
diff --git a/2015/d20/ex2/ex2.py b/2015/d20/ex2/ex2.py
deleted file mode 100755
index 1d7c373..0000000
--- a/2015/d20/ex2/ex2.py
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-
-
-def solve(input: str) -> int:
-    needed = int(input.strip())
-    presents = [0] * (needed // 10)  # Surely this should be enough houses
-    for i in range(1, len(presents)):
-        for j in range(1, 50 + 1):
-            if (i * j) >= len(presents):
-                continue
-            presents[i * j] += 11 * i
-    for i, total in enumerate(presents):
-        if total >= needed:
-            return i
-    assert False  # Sanity check
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d20/ex2/input b/2015/d20/ex2/input
deleted file mode 100644
index f0d8336..0000000
--- a/2015/d20/ex2/input
+++ /dev/null
@@ -1 +0,0 @@
-36000000
diff --git a/2015/d21/ex1/ex1.py b/2015/d21/ex1/ex1.py
deleted file mode 100755
index 3dfc88d..0000000
--- a/2015/d21/ex1/ex1.py
+++ /dev/null
@@ -1,104 +0,0 @@
-#!/usr/bin/env python
-
-import itertools
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Ennemy(NamedTuple):
-    hp: int
-    damage: int
-    armor: int
-
-    def attack(self, other: "Ennemy") -> "Ennemy":
-        return Ennemy(
-            other.hp - max(1, self.damage - other.armor),
-            other.damage,
-            other.armor,
-        )
-
-
-class Item(NamedTuple):
-    cost: int
-    damage: int
-    armor: int
-
-
-WEAPONS = {
-    "Dagger": Item(8, 4, 0),
-    "Shortsword": Item(10, 5, 0),
-    "Warhammer": Item(25, 6, 0),
-    "Longsword": Item(40, 7, 0),
-    "Greataxe": Item(74, 8, 0),
-}
-ARMORS = {
-    "Leather": Item(13, 0, 1),
-    "Chainmail": Item(31, 0, 2),
-    "Splintmail": Item(53, 0, 3),
-    "Bandedmail": Item(75, 0, 4),
-    "Platemail": Item(102, 0, 5),
-}
-RINGS = {
-    "Damage +1": Item(25, 1, 0),
-    "Damage +2": Item(50, 2, 0),
-    "Damage +3": Item(100, 3, 0),
-    "Defense +1": Item(20, 0, 1),
-    "Defense +2": Item(40, 0, 2),
-    "Defense +3": Item(80, 0, 3),
-}
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> Ennemy:
-        return Ennemy(*map(int, (line.split(": ")[1] for line in input.splitlines())))
-
-    def choose_items() -> Iterator[list[Item]]:
-        allowed_weapons = [1]
-        allowed_armors = [0, 1]
-        allowed_rings = [0, 1, 2]
-
-        for weapons, armors, rings in itertools.product(
-            itertools.chain.from_iterable(
-                itertools.combinations(WEAPONS.values(), i) for i in allowed_weapons
-            ),
-            itertools.chain.from_iterable(
-                itertools.combinations(ARMORS.values(), i) for i in allowed_armors
-            ),
-            itertools.chain.from_iterable(
-                itertools.combinations(RINGS.values(), i) for i in allowed_rings
-            ),
-        ):
-            yield list(itertools.chain(weapons, armors, rings))
-
-    def assemble_inventory(items: list[Item]) -> Ennemy:
-        return Ennemy(
-            hp=100,
-            damage=sum(item.damage for item in items),
-            armor=sum(item.armor for item in items),
-        )
-
-    def battle(us: Ennemy, ennemy: Ennemy) -> bool:
-        while True:
-            ennemy = us.attack(ennemy)
-            if ennemy.hp <= 0:
-                return True
-            us = ennemy.attack(us)
-            if us.hp <= 0:
-                return False
-
-    ennemy = parse(input)
-    return min(
-        sum(item.cost for item in items)
-        for items in choose_items()
-        if battle(assemble_inventory(items), ennemy)
-    )
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d21/ex1/input b/2015/d21/ex1/input
deleted file mode 100644
index c5f2409..0000000
--- a/2015/d21/ex1/input
+++ /dev/null
@@ -1,3 +0,0 @@
-Hit Points: 109
-Damage: 8
-Armor: 2
diff --git a/2015/d21/ex2/ex2.py b/2015/d21/ex2/ex2.py
deleted file mode 100755
index eca2485..0000000
--- a/2015/d21/ex2/ex2.py
+++ /dev/null
@@ -1,104 +0,0 @@
-#!/usr/bin/env python
-
-import itertools
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Ennemy(NamedTuple):
-    hp: int
-    damage: int
-    armor: int
-
-    def attack(self, other: "Ennemy") -> "Ennemy":
-        return Ennemy(
-            other.hp - max(1, self.damage - other.armor),
-            other.damage,
-            other.armor,
-        )
-
-
-class Item(NamedTuple):
-    cost: int
-    damage: int
-    armor: int
-
-
-WEAPONS = {
-    "Dagger": Item(8, 4, 0),
-    "Shortsword": Item(10, 5, 0),
-    "Warhammer": Item(25, 6, 0),
-    "Longsword": Item(40, 7, 0),
-    "Greataxe": Item(74, 8, 0),
-}
-ARMORS = {
-    "Leather": Item(13, 0, 1),
-    "Chainmail": Item(31, 0, 2),
-    "Splintmail": Item(53, 0, 3),
-    "Bandedmail": Item(75, 0, 4),
-    "Platemail": Item(102, 0, 5),
-}
-RINGS = {
-    "Damage +1": Item(25, 1, 0),
-    "Damage +2": Item(50, 2, 0),
-    "Damage +3": Item(100, 3, 0),
-    "Defense +1": Item(20, 0, 1),
-    "Defense +2": Item(40, 0, 2),
-    "Defense +3": Item(80, 0, 3),
-}
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> Ennemy:
-        return Ennemy(*map(int, (line.split(": ")[1] for line in input.splitlines())))
-
-    def choose_items() -> Iterator[list[Item]]:
-        allowed_weapons = [1]
-        allowed_armors = [0, 1]
-        allowed_rings = [0, 1, 2]
-
-        for weapons, armors, rings in itertools.product(
-            itertools.chain.from_iterable(
-                itertools.combinations(WEAPONS.values(), i) for i in allowed_weapons
-            ),
-            itertools.chain.from_iterable(
-                itertools.combinations(ARMORS.values(), i) for i in allowed_armors
-            ),
-            itertools.chain.from_iterable(
-                itertools.combinations(RINGS.values(), i) for i in allowed_rings
-            ),
-        ):
-            yield list(itertools.chain(weapons, armors, rings))
-
-    def assemble_inventory(items: list[Item]) -> Ennemy:
-        return Ennemy(
-            hp=100,
-            damage=sum(item.damage for item in items),
-            armor=sum(item.armor for item in items),
-        )
-
-    def battle(us: Ennemy, ennemy: Ennemy) -> bool:
-        while True:
-            ennemy = us.attack(ennemy)
-            if ennemy.hp <= 0:
-                return True
-            us = ennemy.attack(us)
-            if us.hp <= 0:
-                return False
-
-    ennemy = parse(input)
-    return max(
-        sum(item.cost for item in items)
-        for items in choose_items()
-        if not battle(assemble_inventory(items), ennemy)
-    )
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d21/ex2/input b/2015/d21/ex2/input
deleted file mode 100644
index c5f2409..0000000
--- a/2015/d21/ex2/input
+++ /dev/null
@@ -1,3 +0,0 @@
-Hit Points: 109
-Damage: 8
-Armor: 2
diff --git a/2015/d22/ex1/ex1.py b/2015/d22/ex1/ex1.py
deleted file mode 100755
index 25cbd5b..0000000
--- a/2015/d22/ex1/ex1.py
+++ /dev/null
@@ -1,166 +0,0 @@
-#!/usr/bin/env python
-
-import heapq
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Ennemy(NamedTuple):
-    hp: int
-    damage: int
-
-
-class Effects(NamedTuple):
-    # Effect is active is it is greater or equal to zero
-    shield: int = -1
-    poison: int = -1
-    recharge: int = -1
-
-    def tick(self) -> "Effects":
-        return Effects(*(n - 1 for n in self))
-
-    def shield_active(self) -> bool:
-        return self.shield >= 0
-
-    def poison_active(self) -> bool:
-        return self.poison >= 0
-
-    def recharge_active(self) -> bool:
-        return self.recharge >= 0
-
-    def with_shield(self) -> "Effects":
-        assert self.shield <= 0  # Sanity check
-        return self._replace(shield=6)
-
-    def with_poison(self) -> "Effects":
-        assert self.poison <= 0  # Sanity check
-        return self._replace(poison=6)
-
-    def with_recharge(self) -> "Effects":
-        assert self.recharge <= 0  # Sanity check
-        return self._replace(recharge=5)
-
-
-class Player(NamedTuple):
-    hp: int
-    mana: int
-    effects: Effects
-
-
-MISSILE = 53
-DRAIN = 73
-SHIELD = 113
-POISON = 173
-RECHARGE = 229
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> Ennemy:
-        return Ennemy(*map(int, (line.split(": ")[1] for line in input.splitlines())))
-
-    def step(player: Player, ennemy: Ennemy) -> Iterator[tuple[int, Player, Ennemy]]:
-        def tick_spells(player: Player, ennemy: Ennemy) -> tuple[Player, Ennemy]:
-            player = player._replace(effects=player.effects.tick())
-            if player.effects.recharge_active():
-                player = player._replace(mana=player.mana + 101)
-            if player.effects.poison_active():
-                ennemy = ennemy._replace(hp=ennemy.hp - 3)
-            return player, ennemy
-
-        # Note: does *not* drain the mana for the spell
-        def possible_spells(
-            player: Player,
-            ennemy: Ennemy,
-        ) -> Iterator[tuple[int, Player, Ennemy]]:
-            if player.mana >= MISSILE:
-                yield (
-                    MISSILE,
-                    player,
-                    ennemy._replace(hp=ennemy.hp - 4),
-                )
-            if player.mana >= DRAIN:
-                yield (
-                    DRAIN,
-                    player._replace(hp=player.hp + 2),
-                    ennemy._replace(hp=ennemy.hp - 2),
-                )
-            if player.mana >= SHIELD and player.effects.shield <= 0:
-                yield (
-                    SHIELD,
-                    player._replace(effects=player.effects.with_shield()),
-                    ennemy,
-                )
-            if player.mana >= POISON and player.effects.poison <= 0:
-                yield (
-                    POISON,
-                    player._replace(effects=player.effects.with_poison()),
-                    ennemy,
-                )
-            if player.mana >= RECHARGE and player.effects.recharge <= 0:
-                yield (
-                    RECHARGE,
-                    player._replace(effects=player.effects.with_recharge()),
-                    ennemy,
-                )
-
-        def boss_turn(player: Player, ennemy: Ennemy) -> tuple[Player, Ennemy]:
-            # Spells are ticked at start of turn
-            player, ennemy = tick_spells(player, ennemy)
-
-            # Ennemy can't attack if they're dead
-            if ennemy.hp <= 0:
-                return player, ennemy
-
-            armor = 7 if player.effects.shield_active() else 0
-            damage = max(1, ennemy.damage - armor)
-            return player._replace(hp=player.hp - damage), ennemy
-
-        # We lose if we run out of hp
-        if player.hp <= 0:
-            return
-
-        # Spells are ticked at start of turn
-        player, ennemy = tick_spells(player, ennemy)
-
-        # Don't spend a spell if the ennemy is already dead
-        if ennemy.hp <= 0:
-            yield 0, player, ennemy
-
-        for cost, player, ennemy in possible_spells(player, ennemy):
-            yield cost, *boss_turn(player._replace(mana=player.mana - cost), ennemy)
-
-    def dijkstra(player: Player, ennemy: Ennemy) -> int:
-        # Priority queue of (mana_spent, player, ennemy)
-        queue = [(0, player, ennemy)]
-        seen: set[tuple[Player, Ennemy]] = set()
-
-        while len(queue) > 0:
-            total_cost, p, e = heapq.heappop(queue)
-            if p.hp <= 0:
-                continue
-            if e.hp <= 0:
-                return total_cost
-            # We must have seen (p, e) with a smaller distance before
-            if (p, e) in seen:
-                continue
-            # First time encountering (p, e), must be the smallest distance to it
-            seen.add((p, e))
-            # Add all neighbours to be visited
-            for cost, p, e in step(p, e):
-                heapq.heappush(queue, (total_cost + cost, p, e))
-
-        assert False  # Sanity check
-
-    ennemy = parse(input)
-    player = Player(50, 500, Effects())
-    return dijkstra(player, ennemy)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d22/ex1/input b/2015/d22/ex1/input
deleted file mode 100644
index afff321..0000000
--- a/2015/d22/ex1/input
+++ /dev/null
@@ -1,2 +0,0 @@
-Hit Points: 51
-Damage: 9
diff --git a/2015/d22/ex2/ex2.py b/2015/d22/ex2/ex2.py
deleted file mode 100755
index af74f23..0000000
--- a/2015/d22/ex2/ex2.py
+++ /dev/null
@@ -1,168 +0,0 @@
-#!/usr/bin/env python
-
-import heapq
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Ennemy(NamedTuple):
-    hp: int
-    damage: int
-
-
-class Effects(NamedTuple):
-    # Effect is active is it is greater or equal to zero
-    shield: int = -1
-    poison: int = -1
-    recharge: int = -1
-
-    def tick(self) -> "Effects":
-        return Effects(*(n - 1 for n in self))
-
-    def shield_active(self) -> bool:
-        return self.shield >= 0
-
-    def poison_active(self) -> bool:
-        return self.poison >= 0
-
-    def recharge_active(self) -> bool:
-        return self.recharge >= 0
-
-    def with_shield(self) -> "Effects":
-        assert self.shield <= 0  # Sanity check
-        return self._replace(shield=6)
-
-    def with_poison(self) -> "Effects":
-        assert self.poison <= 0  # Sanity check
-        return self._replace(poison=6)
-
-    def with_recharge(self) -> "Effects":
-        assert self.recharge <= 0  # Sanity check
-        return self._replace(recharge=5)
-
-
-class Player(NamedTuple):
-    hp: int
-    mana: int
-    effects: Effects
-
-
-MISSILE = 53
-DRAIN = 73
-SHIELD = 113
-POISON = 173
-RECHARGE = 229
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> Ennemy:
-        return Ennemy(*map(int, (line.split(": ")[1] for line in input.splitlines())))
-
-    def step(player: Player, ennemy: Ennemy) -> Iterator[tuple[int, Player, Ennemy]]:
-        def tick_spells(player: Player, ennemy: Ennemy) -> tuple[Player, Ennemy]:
-            player = player._replace(effects=player.effects.tick())
-            if player.effects.recharge_active():
-                player = player._replace(mana=player.mana + 101)
-            if player.effects.poison_active():
-                ennemy = ennemy._replace(hp=ennemy.hp - 3)
-            return player, ennemy
-
-        # Note: does *not* drain the mana for the spell
-        def possible_spells(
-            player: Player,
-            ennemy: Ennemy,
-        ) -> Iterator[tuple[int, Player, Ennemy]]:
-            if player.mana >= MISSILE:
-                yield (
-                    MISSILE,
-                    player,
-                    ennemy._replace(hp=ennemy.hp - 4),
-                )
-            if player.mana >= DRAIN:
-                yield (
-                    DRAIN,
-                    player._replace(hp=player.hp + 2),
-                    ennemy._replace(hp=ennemy.hp - 2),
-                )
-            if player.mana >= SHIELD and player.effects.shield <= 0:
-                yield (
-                    SHIELD,
-                    player._replace(effects=player.effects.with_shield()),
-                    ennemy,
-                )
-            if player.mana >= POISON and player.effects.poison <= 0:
-                yield (
-                    POISON,
-                    player._replace(effects=player.effects.with_poison()),
-                    ennemy,
-                )
-            if player.mana >= RECHARGE and player.effects.recharge <= 0:
-                yield (
-                    RECHARGE,
-                    player._replace(effects=player.effects.with_recharge()),
-                    ennemy,
-                )
-
-        def boss_turn(player: Player, ennemy: Ennemy) -> tuple[Player, Ennemy]:
-            # Spells are ticked at start of turn
-            player, ennemy = tick_spells(player, ennemy)
-
-            # Ennemy can't attack if they're dead
-            if ennemy.hp <= 0:
-                return player, ennemy
-
-            armor = 7 if player.effects.shield_active() else 0
-            damage = max(1, ennemy.damage - armor)
-            return player._replace(hp=player.hp - damage), ennemy
-
-        # Apply hard mode HP loss
-        player = player._replace(hp=player.hp - 1)
-        # We lose if we run out of hp
-        if player.hp <= 0:
-            return
-
-        # Spells are ticked at start of turn
-        player, ennemy = tick_spells(player, ennemy)
-
-        # Don't spend a spell if the ennemy is already dead
-        if ennemy.hp <= 0:
-            yield 0, player, ennemy
-
-        for cost, player, ennemy in possible_spells(player, ennemy):
-            yield cost, *boss_turn(player._replace(mana=player.mana - cost), ennemy)
-
-    def dijkstra(player: Player, ennemy: Ennemy) -> int:
-        # Priority queue of (mana_spent, player, ennemy)
-        queue = [(0, player, ennemy)]
-        seen: set[tuple[Player, Ennemy]] = set()
-
-        while len(queue) > 0:
-            total_cost, p, e = heapq.heappop(queue)
-            if p.hp <= 0:
-                continue
-            if e.hp <= 0:
-                return total_cost
-            # We must have seen (p, e) with a smaller distance before
-            if (p, e) in seen:
-                continue
-            # First time encountering (p, e), must be the smallest distance to it
-            seen.add((p, e))
-            # Add all neighbours to be visited
-            for cost, p, e in step(p, e):
-                heapq.heappush(queue, (total_cost + cost, p, e))
-
-        assert False  # Sanity check
-
-    ennemy = parse(input)
-    player = Player(50, 500, Effects())
-    return dijkstra(player, ennemy)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d22/ex2/input b/2015/d22/ex2/input
deleted file mode 100644
index afff321..0000000
--- a/2015/d22/ex2/input
+++ /dev/null
@@ -1,2 +0,0 @@
-Hit Points: 51
-Damage: 9
diff --git a/2015/d23/ex1/ex1.py b/2015/d23/ex1/ex1.py
deleted file mode 100755
index b498706..0000000
--- a/2015/d23/ex1/ex1.py
+++ /dev/null
@@ -1,67 +0,0 @@
-#!/usr/bin/env python
-
-import enum
-import sys
-from typing import NamedTuple
-
-
-class Op(enum.StrEnum):
-    HLF = "hlf"
-    TPL = "tpl"
-    INC = "inc"
-    JMP = "jmp"
-    JIE = "jie"
-    JIO = "jio"
-
-
-class Instruction(NamedTuple):
-    op: Op
-    x: str
-    y: str | None = None
-
-    @classmethod
-    def from_str(cls, input: str) -> "Instruction":
-        op, rest = input.split(None, 1)
-        return cls(Op(op), *rest.split(", "))
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> list[Instruction]:
-        return [Instruction.from_str(line) for line in input.splitlines()]
-
-    instructions = parse(input)
-    registers: dict[str, int] = {"a": 0, "b": 0}
-
-    ip = 0
-    while True:
-        if ip < 0 or ip >= len(instructions):
-            break
-        instr = instructions[ip]
-        ip += 1
-        match instr.op:
-            case Op.HLF:
-                registers[instr.x] //= 2
-            case Op.TPL:
-                registers[instr.x] *= 3
-            case Op.INC:
-                registers[instr.x] += 1
-            case Op.JMP:
-                ip += int(instr.x) - 1  # Account auto-increment
-            case Op.JIE:
-                assert instr.y is not None
-                if registers[instr.x] % 2 == 0:
-                    ip += int(instr.y) - 1  # Account auto-increment
-            case Op.JIO:
-                assert instr.y is not None
-                if registers[instr.x] == 1:
-                    ip += int(instr.y) - 1  # Account auto-increment
-    return registers["b"]
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d23/ex1/input b/2015/d23/ex1/input
deleted file mode 100644
index 79d9624..0000000
--- a/2015/d23/ex1/input
+++ /dev/null
@@ -1,46 +0,0 @@
-jio a, +16
-inc a
-inc a
-tpl a
-tpl a
-tpl a
-inc a
-inc a
-tpl a
-inc a
-inc a
-tpl a
-tpl a
-tpl a
-inc a
-jmp +23
-tpl a
-inc a
-inc a
-tpl a
-inc a
-inc a
-tpl a
-tpl a
-inc a
-inc a
-tpl a
-inc a
-tpl a
-inc a
-tpl a
-inc a
-inc a
-tpl a
-inc a
-tpl a
-tpl a
-inc a
-jio a, +8
-inc b
-jie a, +4
-tpl a
-inc a
-jmp +2
-hlf a
-jmp -7
diff --git a/2015/d23/ex2/ex2.py b/2015/d23/ex2/ex2.py
deleted file mode 100755
index 42bc07a..0000000
--- a/2015/d23/ex2/ex2.py
+++ /dev/null
@@ -1,67 +0,0 @@
-#!/usr/bin/env python
-
-import enum
-import sys
-from typing import NamedTuple
-
-
-class Op(enum.StrEnum):
-    HLF = "hlf"
-    TPL = "tpl"
-    INC = "inc"
-    JMP = "jmp"
-    JIE = "jie"
-    JIO = "jio"
-
-
-class Instruction(NamedTuple):
-    op: Op
-    x: str
-    y: str | None = None
-
-    @classmethod
-    def from_str(cls, input: str) -> "Instruction":
-        op, rest = input.split(None, 1)
-        return cls(Op(op), *rest.split(", "))
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> list[Instruction]:
-        return [Instruction.from_str(line) for line in input.splitlines()]
-
-    instructions = parse(input)
-    registers: dict[str, int] = {"a": 1, "b": 0}
-
-    ip = 0
-    while True:
-        if ip < 0 or ip >= len(instructions):
-            break
-        instr = instructions[ip]
-        ip += 1
-        match instr.op:
-            case Op.HLF:
-                registers[instr.x] //= 2
-            case Op.TPL:
-                registers[instr.x] *= 3
-            case Op.INC:
-                registers[instr.x] += 1
-            case Op.JMP:
-                ip += int(instr.x) - 1  # Account auto-increment
-            case Op.JIE:
-                assert instr.y is not None
-                if registers[instr.x] % 2 == 0:
-                    ip += int(instr.y) - 1  # Account auto-increment
-            case Op.JIO:
-                assert instr.y is not None
-                if registers[instr.x] == 1:
-                    ip += int(instr.y) - 1  # Account auto-increment
-    return registers["b"]
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d23/ex2/input b/2015/d23/ex2/input
deleted file mode 100644
index 79d9624..0000000
--- a/2015/d23/ex2/input
+++ /dev/null
@@ -1,46 +0,0 @@
-jio a, +16
-inc a
-inc a
-tpl a
-tpl a
-tpl a
-inc a
-inc a
-tpl a
-inc a
-inc a
-tpl a
-tpl a
-tpl a
-inc a
-jmp +23
-tpl a
-inc a
-inc a
-tpl a
-inc a
-inc a
-tpl a
-tpl a
-inc a
-inc a
-tpl a
-inc a
-tpl a
-inc a
-tpl a
-inc a
-inc a
-tpl a
-inc a
-tpl a
-tpl a
-inc a
-jio a, +8
-inc b
-jie a, +4
-tpl a
-inc a
-jmp +2
-hlf a
-jmp -7
diff --git a/2015/d24/ex1/ex1.py b/2015/d24/ex1/ex1.py
deleted file mode 100755
index 025bb30..0000000
--- a/2015/d24/ex1/ex1.py
+++ /dev/null
@@ -1,46 +0,0 @@
-#!/usr/bin/env python
-
-import itertools
-import math
-import sys
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> list[int]:
-        return [int(n) for n in input.splitlines()]
-
-    def package_groups(packages: list[int]) -> tuple[list[int], list[int], list[int]]:
-        assert sum(packages) % 3 == 0  # Sanity check
-        target_weight = sum(packages) // 3
-
-        # I'm lazy, a brute-force double loop is good enough
-        for first_len in range(1, len(packages) + 1):
-            for perm in itertools.combinations(range(len(packages)), first_len):
-                first = [packages[p] for p in perm]
-                if sum(first) != target_weight:
-                    continue
-                others = [p for i, p in enumerate(packages) if i not in perm]
-                for sec_len in range(1, len(others) + 1):
-                    for perm in itertools.combinations(range(len(others)), sec_len):
-                        second = [others[p] for p in perm]
-                        if sum(second) != target_weight:
-                            continue
-                        last = [p for i, p in enumerate(others) if i not in perm]
-                        return first, second, last
-        assert False  # Sanity check
-
-    def quantum_entanglement(packages: list[int]) -> int:
-        return math.prod(packages)
-
-    packages = parse(input)
-    best_split = package_groups(packages)
-    return quantum_entanglement(best_split[0])
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d24/ex1/input b/2015/d24/ex1/input
deleted file mode 100644
index bcdfa26..0000000
--- a/2015/d24/ex1/input
+++ /dev/null
@@ -1,29 +0,0 @@
-1
-2
-3
-7
-11
-13
-17
-19
-23
-31
-37
-41
-43
-47
-53
-59
-61
-67
-71
-73
-79
-83
-89
-97
-101
-103
-107
-109
-113
diff --git a/2015/d24/ex2/ex2.py b/2015/d24/ex2/ex2.py
deleted file mode 100755
index 8136a7b..0000000
--- a/2015/d24/ex2/ex2.py
+++ /dev/null
@@ -1,71 +0,0 @@
-#!/usr/bin/env python
-
-import itertools
-import math
-import sys
-from collections.abc import Iterator
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> list[int]:
-        return [int(n) for n in input.splitlines()]
-
-    def package_groups(
-        packages: list[int],
-    ) -> Iterator[tuple[list[int], list[int], list[int], list[int]]]:
-        assert sum(packages) % 4 == 0  # Sanity check
-        target_weight = sum(packages) // 4
-
-        # I'm lazy, a brute-force triple loop is good enough
-        found = False
-        for first_len in range(1, len(packages) + 1):
-            for perm in itertools.combinations(range(len(packages)), first_len):
-                first = [packages[p] for p in perm]
-                if sum(first) != target_weight:
-                    continue
-                others = [p for i, p in enumerate(packages) if i not in perm]
-                for sec_len in range(1, len(others) + 1):
-                    for perm in itertools.combinations(range(len(others)), sec_len):
-                        second = [others[p] for p in perm]
-                        if sum(second) != target_weight:
-                            continue
-                        others_ = [p for i, p in enumerate(others) if i not in perm]
-                        for third_len in range(1, len(others_) + 1):
-                            for perm in itertools.combinations(
-                                range(len(others_)), third_len
-                            ):
-                                third = [others_[p] for p in perm]
-                                last = [
-                                    others_[i]
-                                    for i in range(len(others_))
-                                    if i not in perm
-                                ]
-                                yield first, second, third, last
-                                # We only care to enumerate all valid *first* packages
-                                # Not *all* permutations
-                                found = True
-                                break
-                            if found:
-                                break
-                        if found:
-                            break
-                    if found:
-                        break
-                    # *Don't* break if `found`, we want to keep enumerating this length
-            if found:
-                break
-
-    def quantum_entanglement(packages: list[int]) -> int:
-        return math.prod(packages)
-
-    packages = parse(input)
-    return min(quantum_entanglement(split[0]) for split in package_groups(packages))
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d24/ex2/input b/2015/d24/ex2/input
deleted file mode 100644
index bcdfa26..0000000
--- a/2015/d24/ex2/input
+++ /dev/null
@@ -1,29 +0,0 @@
-1
-2
-3
-7
-11
-13
-17
-19
-23
-31
-37
-41
-43
-47
-53
-59
-61
-67
-71
-73
-79
-83
-89
-97
-101
-103
-107
-109
-113
diff --git a/2015/d25/ex1/ex1.py b/2015/d25/ex1/ex1.py
deleted file mode 100755
index 1b6cc03..0000000
--- a/2015/d25/ex1/ex1.py
+++ /dev/null
@@ -1,43 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> tuple[int, int]:
-        *_, row, column = input.replace(".", "").split(", ")
-        return int(row.split()[-1]), int(column.split()[-1])
-
-    def mod_pow(n: int, pow: int, mod: int) -> int:
-        if pow == 0:
-            return 1
-        if pow == 1:
-            return n % mod
-        res = mod_pow(n, pow // 2, mod) ** 2
-        if pow % 2 == 1:
-            res *= n
-        return res % mod
-
-    def lookup(row: int, column: int) -> int:
-        n = column + row - 1
-        top_right = n * (n + 1) // 2
-        i = top_right - row
-        return 20151125 * mod_pow(252533, i, 33554393) % 33554393
-
-    row, column = parse(input)
-    return lookup(row, column)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d25/ex1/input b/2015/d25/ex1/input
deleted file mode 100644
index c5c38e6..0000000
--- a/2015/d25/ex1/input
+++ /dev/null
@@ -1 +0,0 @@
-To continue, please consult the code grid in the manual.  Enter the code at row 2947, column 3029.
diff --git a/2015/d25/ex2/ex2.py b/2015/d25/ex2/ex2.py
deleted file mode 100755
index 918e0ec..0000000
--- a/2015/d25/ex2/ex2.py
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/usr/bin/env python
-
-
-def main() -> None:
-    print("There is no part two...")
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2015/d25/ex2/input b/2015/d25/ex2/input
deleted file mode 100644
index c5c38e6..0000000
--- a/2015/d25/ex2/input
+++ /dev/null
@@ -1 +0,0 @@
-To continue, please consult the code grid in the manual.  Enter the code at row 2947, column 3029.