diff --git a/2018/d14/ex1/ex1.py b/2018/d14/ex1/ex1.py
deleted file mode 100755
index 1f25cb8..0000000
--- a/2018/d14/ex1/ex1.py
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/usr/bin/env python
-
-import functools
-import sys
-
-
-def solve(input: str) -> int:
-    n_recipes = int(input)
-
-    scores = [3, 7]
-    elves = [0, 1]
-
-    while (len(scores) - 10) < n_recipes:
-        sum = scores[elves[0]] + scores[elves[1]]
-        scores.extend(map(int, str(sum)))
-        elves = [(elf + 1 + scores[elf]) % len(scores) for elf in elves]
-
-    return functools.reduce(lambda lhs, rhs: lhs * 10 + rhs, scores[-10:])
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d14/ex1/input b/2018/d14/ex1/input
deleted file mode 100644
index 85b04f5..0000000
--- a/2018/d14/ex1/input
+++ /dev/null
@@ -1 +0,0 @@
-556061
diff --git a/2018/d14/ex2/ex2.py b/2018/d14/ex2/ex2.py
deleted file mode 100755
index 844c250..0000000
--- a/2018/d14/ex2/ex2.py
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-
-
-def solve(input: str) -> int:
-    digits = [int(n) for n in input.strip()]
-
-    scores = [3, 7]
-    elves = [0, 1]
-
-    while scores[-len(digits) :] != digits and scores[-len(digits) - 1 : -1] != digits:
-        sum = scores[elves[0]] + scores[elves[1]]
-        scores.extend(map(int, str(sum)))
-        elves = [(elf + 1 + scores[elf]) % len(scores) for elf in elves]
-
-    left_of_digits = len(scores) - len(digits) - (scores[-len(digits) :] != digits)
-    return left_of_digits
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d14/ex2/input b/2018/d14/ex2/input
deleted file mode 100644
index 85b04f5..0000000
--- a/2018/d14/ex2/input
+++ /dev/null
@@ -1 +0,0 @@
-556061
diff --git a/2018/d15/ex1/ex1.py b/2018/d15/ex1/ex1.py
deleted file mode 100755
index 54d2de5..0000000
--- a/2018/d15/ex1/ex1.py
+++ /dev/null
@@ -1,192 +0,0 @@
-#!/usr/bin/env python
-
-import dataclasses
-import enum
-import sys
-from typing import Iterator, NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-    # Returned in reading order
-    def neighbours(self) -> Iterator["Point"]:
-        for dx, dy in (
-            (-1, 0),
-            (0, -1),
-            (0, 1),
-            (1, 0),
-        ):
-            yield Point(self.x + dx, self.y + dy)
-
-
-class Unit(enum.StrEnum):
-    ELF = "E"
-    GOBLIN = "G"
-
-    def ennemy(self) -> "Unit":
-        if self == Unit.ELF:
-            return Unit.GOBLIN
-        if self == Unit.GOBLIN:
-            return Unit.ELF
-        assert False  # Sanity check
-
-
-@dataclasses.dataclass
-class UnitData:
-    hp: int = 200
-    power: int = 3
-
-
-def solve(input: str) -> int:
-    def parse(input: list[str]) -> tuple[set[Point], dict[Unit, set[Point]]]:
-        walls: set[Point] = set()
-        units: dict[Unit, set[Point]] = {u: set() for u in Unit}
-
-        for x, line in enumerate(input):
-            for y, c in enumerate(line):
-                p = Point(x, y)
-                if c in Unit:
-                    units[Unit(c)].add(p)
-                if c == "#":
-                    walls.add(p)
-
-        return walls, units
-
-    def double_bfs(
-        unit_type: Unit,
-        unit_pos: Point,
-        walls: set[Point],
-        units: dict[Unit, set[Point]],
-    ) -> Point | None:
-        def bfs(
-            start: Point,
-            targets: set[Point],
-            blockers: set[Point],
-        ) -> Point | None:
-            frontier = [start]
-            seen: set[Point] = set()
-            while frontier:
-                new_frontier: set[Point] = set()
-
-                for p in frontier:
-                    if p in targets:
-                        return p
-                    seen.add(p)
-                    for n in p.neighbours():
-                        if n in seen:
-                            continue
-                        if n in blockers:
-                            continue
-                        new_frontier.add(n)
-                frontier = sorted(new_frontier)
-
-            return None
-
-        blockers = walls | units[unit_type]
-        ennemies = units[unit_type.ennemy()]
-
-        # First BFS from start to square next to an ennemy
-        targets_in_range = {
-            n for ennemy in ennemies for n in ennemy.neighbours() if n not in blockers
-        }
-        if (target := bfs(unit_pos, targets_in_range, blockers)) is None:
-            return None
-
-        # Then back from chosen target to one of the movement squares
-        movement_squares = {n for n in unit_pos.neighbours() if n not in blockers}
-        return bfs(target, movement_squares, blockers)
-
-    def do_move(
-        unit_type: Unit,
-        unit_pos: Point,
-        walls: set[Point],
-        units: dict[Unit, set[Point]],
-        unit_data: dict[Point, UnitData],
-    ) -> Point:
-        # If already next to an ennemy, do not move
-        if any(n in units[unit_type.ennemy()] for n in unit_pos.neighbours()):
-            return unit_pos
-
-        new_pos = double_bfs(unit_type, unit_pos, walls, units)
-
-        # Nowhere to move to, no-op
-        if new_pos is None:
-            return unit_pos
-
-        assert new_pos != unit_pos  # Sanity check
-        assert unit_pos in units[unit_type]  # Sanity check
-        assert new_pos not in units[unit_type]  # Sanity check
-
-        # Make the movement in-place
-        units[unit_type] ^= {unit_pos, new_pos}
-        unit_data[new_pos] = unit_data.pop(unit_pos)
-
-        return new_pos
-
-    def do_attack(
-        unit_type: Unit,
-        unit_pos: Point,
-        units: dict[Unit, set[Point]],
-        unit_data: dict[Point, UnitData],
-    ) -> None:
-        # Look for an attack target
-        target = min(
-            (n for n in unit_pos.neighbours() if n in units[unit_type.ennemy()]),
-            key=lambda p: unit_data[p].hp,
-            default=None,
-        )
-
-        # If not in range, no-op
-        if target is None:
-            return
-
-        assert target not in units[unit_type]  # Sanity check
-        assert target in units[unit_type.ennemy()]  # Sanity check
-        assert unit_data[target].hp > 0  # Sanity check
-
-        # Make the attack in-place
-        unit_data[target].hp -= unit_data[unit_pos].power
-        # And if we killed it, remove it from `units`
-        if unit_data[target].hp <= 0:
-            units[unit_type.ennemy()].remove(target)
-            unit_data.pop(target)
-
-    def turn(
-        walls: set[Point],
-        units: dict[Unit, set[Point]],
-        unit_data: dict[Point, UnitData],
-    ) -> bool:
-        turn_order = sorted((p, u) for u, points in units.items() for p in points)
-        for p, u in turn_order:
-            # Don't do anything if the unit is dead
-            if p not in units[u]:
-                continue
-
-            # If no ennemies left, finish the turn early and indicate that we're done
-            if not units[u.ennemy()]:
-                return False
-
-            # Movements and attacks are made in-place
-            p = do_move(u, p, walls, units, unit_data)
-            do_attack(u, p, units, unit_data)
-
-        return True
-
-    walls, units = parse(input.splitlines())
-    unit_data = {p: UnitData() for points in units.values() for p in points}
-
-    turns = 0
-    while turn(walls, units, unit_data):
-        turns += 1
-    return turns * sum(data.hp for data in unit_data.values())
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d15/ex1/input b/2018/d15/ex1/input
deleted file mode 100644
index 922938f..0000000
--- a/2018/d15/ex1/input
+++ /dev/null
@@ -1,32 +0,0 @@
-################################
-######################........##
-####################...........#
-##############G.G..G.#.......#.#
-#############.....G...#....###.#
-############..##.G.............#
-#############...#...GG......####
-#############......G......######
-##############G....EG.....######
-#############.......G.....######
-############.....G......#.######
-###########......E...G.#########
-##########....#####......#######
-##########G..#######......######
-######......#########....#######
-#####....G..#########....#######
-###.......#.#########....#######
-###.G.....#.#########E...#######
-#........##.#########E...#######
-#.......###..#######...E.#######
-#.#.#.........#####.......######
-#.###.#.###.G..............#####
-####.....###..........E.##.#####
-#......G####.E..........########
-###..G..####...........####..###
-####..########..E......###...###
-###..............#...E...#.#####
-##.........##....##........#####
-#.......#.####.........#########
-#...##G.##########....E#########
-#...##...#######################
-################################
diff --git a/2018/d15/ex2/ex2.py b/2018/d15/ex2/ex2.py
deleted file mode 100755
index b67ec81..0000000
--- a/2018/d15/ex2/ex2.py
+++ /dev/null
@@ -1,239 +0,0 @@
-#!/usr/bin/env python
-
-import copy
-import dataclasses
-import enum
-import itertools
-import sys
-from typing import Iterator, NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-    # Returned in reading order
-    def neighbours(self) -> Iterator["Point"]:
-        for dx, dy in (
-            (-1, 0),
-            (0, -1),
-            (0, 1),
-            (1, 0),
-        ):
-            yield Point(self.x + dx, self.y + dy)
-
-
-class Unit(enum.StrEnum):
-    ELF = "E"
-    GOBLIN = "G"
-
-    def ennemy(self) -> "Unit":
-        if self == Unit.ELF:
-            return Unit.GOBLIN
-        if self == Unit.GOBLIN:
-            return Unit.ELF
-        assert False  # Sanity check
-
-
-@dataclasses.dataclass
-class UnitData:
-    hp: int = 200
-    power: int = 3
-
-
-class ElfDiedError(Exception):
-    pass
-
-
-def solve(input: str) -> int:
-    def parse(input: list[str]) -> tuple[set[Point], dict[Unit, set[Point]]]:
-        walls: set[Point] = set()
-        units: dict[Unit, set[Point]] = {u: set() for u in Unit}
-
-        for x, line in enumerate(input):
-            for y, c in enumerate(line):
-                p = Point(x, y)
-                if c in Unit:
-                    units[Unit(c)].add(p)
-                if c == "#":
-                    walls.add(p)
-
-        return walls, units
-
-    def double_bfs(
-        unit_type: Unit,
-        unit_pos: Point,
-        walls: set[Point],
-        units: dict[Unit, set[Point]],
-    ) -> Point | None:
-        def bfs(
-            start: Point,
-            targets: set[Point],
-            blockers: set[Point],
-        ) -> Point | None:
-            frontier = [start]
-            seen: set[Point] = set()
-            while frontier:
-                new_frontier: set[Point] = set()
-
-                for p in frontier:
-                    if p in targets:
-                        return p
-                    seen.add(p)
-                    for n in p.neighbours():
-                        if n in seen:
-                            continue
-                        if n in blockers:
-                            continue
-                        new_frontier.add(n)
-                frontier = sorted(new_frontier)
-
-            return None
-
-        blockers = walls | units[unit_type]
-        ennemies = units[unit_type.ennemy()]
-
-        # First BFS from start to square next to an ennemy
-        targets_in_range = {
-            n for ennemy in ennemies for n in ennemy.neighbours() if n not in blockers
-        }
-        if (target := bfs(unit_pos, targets_in_range, blockers)) is None:
-            return None
-
-        # Then back from chosen target to one of the movement squares
-        movement_squares = {n for n in unit_pos.neighbours() if n not in blockers}
-        return bfs(target, movement_squares, blockers)
-
-    def do_move(
-        unit_type: Unit,
-        unit_pos: Point,
-        walls: set[Point],
-        units: dict[Unit, set[Point]],
-        unit_data: dict[Point, UnitData],
-    ) -> Point:
-        # If already next to an ennemy, do not move
-        if any(n in units[unit_type.ennemy()] for n in unit_pos.neighbours()):
-            return unit_pos
-
-        new_pos = double_bfs(unit_type, unit_pos, walls, units)
-
-        # Nowhere to move to, no-op
-        if new_pos is None:
-            return unit_pos
-
-        assert new_pos != unit_pos  # Sanity check
-        assert unit_pos in units[unit_type]  # Sanity check
-        assert new_pos not in units[unit_type]  # Sanity check
-
-        # Make the movement in-place
-        units[unit_type] ^= {unit_pos, new_pos}
-        unit_data[new_pos] = unit_data.pop(unit_pos)
-
-        return new_pos
-
-    def do_attack(
-        unit_type: Unit,
-        unit_pos: Point,
-        units: dict[Unit, set[Point]],
-        unit_data: dict[Point, UnitData],
-    ) -> None:
-        # Look for an attack target
-        target = min(
-            (n for n in unit_pos.neighbours() if n in units[unit_type.ennemy()]),
-            key=lambda p: unit_data[p].hp,
-            default=None,
-        )
-
-        # If not in range, no-op
-        if target is None:
-            return
-
-        assert target not in units[unit_type]  # Sanity check
-        assert target in units[unit_type.ennemy()]  # Sanity check
-        assert unit_data[target].hp > 0  # Sanity check
-
-        # Make the attack in-place
-        unit_data[target].hp -= unit_data[unit_pos].power
-        # And if we killed it, remove it from `units`
-        if unit_data[target].hp <= 0:
-            if unit_type.ennemy() == Unit.ELF:
-                raise ElfDiedError
-            units[unit_type.ennemy()].remove(target)
-            unit_data.pop(target)
-
-    def turn(
-        walls: set[Point],
-        units: dict[Unit, set[Point]],
-        unit_data: dict[Point, UnitData],
-    ) -> bool:
-        turn_order = sorted((p, u) for u, points in units.items() for p in points)
-        for p, u in turn_order:
-            # Don't do anything if the unit is dead
-            if p not in units[u]:
-                continue
-
-            # If no ennemies left, finish the turn early and indicate that we're done
-            if not units[u.ennemy()]:
-                return False
-
-            # Movements and attacks are made in-place
-            p = do_move(u, p, walls, units, unit_data)
-            do_attack(u, p, units, unit_data)
-
-        return True
-
-    def print_map(walls: set[Point], units: dict[Unit, set[Point]]) -> None:
-        max_x, max_y = max(p.x for p in walls), max(p.y for p in walls)
-        for x in range(0, max_x + 1):
-            for y in range(0, max_y + 1):
-                p = Point(x, y)
-                for u in Unit:
-                    if p in units[u]:
-                        print(str(u), end="")
-                        break
-                else:
-                    print("#" if p in walls else ".", end="")
-            print()
-        print()
-
-    def run_to_completion(
-        walls: set[Point],
-        units: dict[Unit, set[Point]],
-        unit_data: dict[Point, UnitData],
-    ) -> int:
-        turns = 0
-        while turn(walls, units, unit_data):
-            turns += 1
-        return turns * sum(data.hp for data in unit_data.values())
-
-    def arm_elves(
-        walls: set[Point],
-        units: dict[Unit, set[Point]],
-    ) -> int:
-        for elf_power in itertools.count(start=3):
-            try:
-                unit_data = {
-                    p: UnitData(power=elf_power if u == Unit.ELF else 3)
-                    for u, points in units.items()
-                    for p in points
-                }
-                return run_to_completion(
-                    copy.deepcopy(walls),
-                    copy.deepcopy(units),
-                    unit_data,
-                )
-            except ElfDiedError:
-                pass
-        assert False  # Sanity check
-
-    walls, units = parse(input.splitlines())
-    return arm_elves(walls, units)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d15/ex2/input b/2018/d15/ex2/input
deleted file mode 100644
index 922938f..0000000
--- a/2018/d15/ex2/input
+++ /dev/null
@@ -1,32 +0,0 @@
-################################
-######################........##
-####################...........#
-##############G.G..G.#.......#.#
-#############.....G...#....###.#
-############..##.G.............#
-#############...#...GG......####
-#############......G......######
-##############G....EG.....######
-#############.......G.....######
-############.....G......#.######
-###########......E...G.#########
-##########....#####......#######
-##########G..#######......######
-######......#########....#######
-#####....G..#########....#######
-###.......#.#########....#######
-###.G.....#.#########E...#######
-#........##.#########E...#######
-#.......###..#######...E.#######
-#.#.#.........#####.......######
-#.###.#.###.G..............#####
-####.....###..........E.##.#####
-#......G####.E..........########
-###..G..####...........####..###
-####..########..E......###...###
-###..............#...E...#.#####
-##.........##....##........#####
-#.......#.####.........#########
-#...##G.##########....E#########
-#...##...#######################
-################################
diff --git a/2018/d16/ex1/ex1.py b/2018/d16/ex1/ex1.py
deleted file mode 100755
index 2bc4551..0000000
--- a/2018/d16/ex1/ex1.py
+++ /dev/null
@@ -1,110 +0,0 @@
-#!/usr/bin/env python
-
-import copy
-import enum
-import sys
-from typing import NamedTuple
-
-
-class OpCode(enum.StrEnum):
-    ADDR = "addr"
-    ADDI = "addi"
-    MULR = "mulr"
-    MULI = "muli"
-    BANR = "banr"
-    BANI = "bani"
-    BORR = "borr"
-    BORI = "bori"
-    SETR = "setr"
-    SETI = "seti"
-    GTIR = "gtir"
-    GTRI = "gtri"
-    GTRR = "gtrr"
-    EQIR = "eqir"
-    EQRI = "eqri"
-    EQRR = "eqrr"
-
-    def apply(self, registers: list[int], a: int, b: int, c: int) -> list[int]:
-        registers = copy.deepcopy(registers)
-        if self == OpCode.ADDR:
-            registers[c] = registers[a] + registers[b]
-        if self == OpCode.ADDI:
-            registers[c] = registers[a] + b
-        if self == OpCode.MULR:
-            registers[c] = registers[a] * registers[b]
-        if self == OpCode.MULI:
-            registers[c] = registers[a] * b
-        if self == OpCode.BANR:
-            registers[c] = registers[a] & registers[b]
-        if self == OpCode.BANI:
-            registers[c] = registers[a] & b
-        if self == OpCode.BORR:
-            registers[c] = registers[a] | registers[b]
-        if self == OpCode.BORI:
-            registers[c] = registers[a] | b
-        if self == OpCode.SETR:
-            registers[c] = registers[a]
-        if self == OpCode.SETI:
-            registers[c] = a
-        if self == OpCode.GTIR:
-            registers[c] = a > registers[b]
-        if self == OpCode.GTRI:
-            registers[c] = registers[a] > b
-        if self == OpCode.GTRR:
-            registers[c] = registers[a] > registers[b]
-        if self == OpCode.EQIR:
-            registers[c] = a == registers[b]
-        if self == OpCode.EQRI:
-            registers[c] = registers[a] == b
-        if self == OpCode.EQRR:
-            registers[c] = registers[a] == registers[b]
-        return registers
-
-
-Instruction = list[int]
-
-
-class Example(NamedTuple):
-    before: list[int]
-    data: Instruction
-    after: list[int]
-
-
-def solve(input: str) -> int:
-    def parse_example(input: list[str]) -> Example:
-        before = input[0].removeprefix("Before: [").removesuffix("]")
-        data = input[1]
-        after = input[2].removeprefix("After:  [").removesuffix("]")
-        return Example(
-            [int(n) for n in before.split(", ")],
-            [int(n) for n in data.split()],
-            [int(n) for n in after.split(", ")],
-        )
-
-    def parse_examples(input: str) -> list[Example]:
-        return [parse_example(example.splitlines()) for example in input.split("\n\n")]
-
-    def parse_data(input: list[str]) -> list[Instruction]:
-        return [[int(n) for n in line.split()] for line in input]
-
-    def parse(input: str) -> tuple[list[Example], list[Instruction]]:
-        examples, data = input.split("\n\n\n\n")
-        return parse_examples(examples), parse_data(data.splitlines())
-
-    def num_candidates(example: Example) -> int:
-        return sum(
-            op.apply(example.before, *example.data[1:]) == example.after
-            for op in OpCode
-        )
-
-    examples, data = parse(input)
-    return sum(num_candidates(example) >= 3 for example in examples)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d16/ex1/input b/2018/d16/ex1/input
deleted file mode 100644
index 88aab0a..0000000
--- a/2018/d16/ex1/input
+++ /dev/null
@@ -1,4148 +0,0 @@
-Before: [1, 1, 0, 1]
-0 1 0 1
-After:  [1, 1, 0, 1]
-
-Before: [2, 2, 2, 1]
-2 1 2 2
-After:  [2, 2, 1, 1]
-
-Before: [1, 3, 2, 2]
-1 2 2 0
-After:  [4, 3, 2, 2]
-
-Before: [2, 2, 1, 1]
-8 0 2 1
-After:  [2, 3, 1, 1]
-
-Before: [0, 1, 2, 2]
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-14 0 2 2
-14 2 1 2
-1 3 2 3
-7 2 2 2
-3 0 2 2
-14 2 3 2
-1 3 2 3
-3 3 2 2
-7 2 1 0
-7 2 0 3
-11 0 3 3
-14 3 2 3
-1 3 2 2
-3 2 0 0
-7 2 3 1
-7 0 2 3
-7 2 1 2
-6 3 2 3
-14 3 3 3
-14 3 1 3
-1 0 3 0
-7 0 3 3
-6 3 2 2
-14 2 1 2
-1 0 2 0
-14 0 0 3
-13 3 1 3
-7 1 0 1
-7 0 2 2
-14 1 2 2
-14 2 2 2
-14 2 2 2
-1 0 2 0
-3 0 1 3
-7 2 1 0
-7 3 3 2
-14 1 2 0
-14 0 2 0
-1 3 0 3
-3 3 0 0
-14 0 0 3
-13 3 2 3
-7 0 2 2
-10 2 3 2
-14 2 1 2
-1 2 0 0
-3 0 1 1
-14 0 0 2
-13 2 3 2
-14 1 0 3
-13 3 0 3
-7 3 2 0
-7 2 0 0
-14 0 1 0
-1 0 1 1
-7 0 1 2
-7 0 0 0
-7 2 1 3
-10 2 3 3
-14 3 2 3
-1 1 3 1
-7 2 0 3
-10 2 3 0
-14 0 1 0
-1 1 0 1
-7 2 3 2
-7 0 2 3
-7 3 1 0
-8 2 0 0
-14 0 3 0
-1 1 0 1
-7 3 0 3
-14 0 0 2
-13 2 0 2
-7 1 3 0
-9 3 2 3
-14 3 1 3
-1 1 3 1
-7 0 3 3
-7 3 2 2
-7 0 1 0
-10 3 2 3
-14 3 2 3
-1 1 3 1
-3 1 3 3
-7 3 3 0
-7 1 3 1
-7 0 2 2
-2 2 0 2
-14 2 1 2
-1 3 2 3
-3 3 1 1
-7 2 3 2
-7 2 0 0
-7 0 3 3
-6 3 2 2
-14 2 2 2
-1 2 1 1
-3 1 3 2
-7 1 2 1
-7 2 3 3
-15 1 0 3
-14 3 2 3
-14 3 3 3
-1 2 3 2
-7 1 0 3
-7 2 3 1
-4 0 3 0
-14 0 2 0
-1 0 2 2
-3 2 2 0
-14 2 0 2
-13 2 1 2
-7 0 3 3
-5 1 3 3
-14 3 1 3
-1 0 3 0
-3 0 2 1
-7 2 1 0
-7 1 3 3
-15 3 0 3
-14 3 3 3
-14 3 1 3
-1 1 3 1
-3 1 3 3
-7 1 2 1
-7 0 2 2
-7 1 1 0
-14 0 2 1
-14 1 2 1
-1 1 3 3
-3 3 1 2
-7 3 0 1
-7 2 0 0
-14 2 0 3
-13 3 1 3
-13 3 1 3
-14 3 2 3
-14 3 3 3
-1 3 2 2
-3 2 2 0
-7 0 0 2
-7 3 0 3
-9 3 2 1
-14 1 2 1
-14 1 3 1
-1 0 1 0
-7 0 1 3
-7 3 3 1
-7 2 0 2
-12 2 1 3
-14 3 1 3
-14 3 1 3
-1 3 0 0
-7 1 2 3
-14 0 0 2
-13 2 3 2
-1 3 3 3
-14 3 1 3
-1 3 0 0
-3 0 0 2
-7 2 2 3
-7 2 1 0
-11 0 3 0
-14 0 3 0
-1 0 2 2
-3 2 3 3
-7 3 1 2
-7 1 3 0
-13 0 1 2
-14 2 2 2
-1 3 2 3
-7 1 0 1
-7 2 1 0
-7 1 3 2
-15 1 0 1
-14 1 1 1
-14 1 1 1
-1 1 3 3
-3 3 3 0
-7 3 1 1
-7 3 1 3
-14 2 0 2
-13 2 0 2
-9 3 2 3
-14 3 2 3
-14 3 3 3
-1 3 0 0
-3 0 1 1
-7 2 1 0
-7 1 2 2
-7 2 1 3
-11 0 3 2
-14 2 2 2
-14 2 1 2
-1 1 2 1
-7 2 0 2
-7 0 2 0
-7 1 0 3
-1 3 3 3
-14 3 1 3
-1 1 3 1
-3 1 0 0
-14 2 0 1
-13 1 3 1
-7 0 2 2
-7 1 3 3
-1 3 3 2
-14 2 1 2
-1 0 2 0
-3 0 3 2
-7 0 3 0
-7 0 3 3
-7 2 2 1
-7 3 0 3
-14 3 1 3
-14 3 3 3
-1 2 3 2
-3 2 1 1
-7 2 2 2
-7 2 0 3
-7 3 0 0
-12 2 0 0
-14 0 3 0
-14 0 1 0
-1 0 1 1
-7 1 3 2
-7 2 0 0
-7 1 3 3
-4 0 3 3
-14 3 1 3
-1 3 1 1
-14 2 0 3
-13 3 0 3
-7 3 1 0
-14 0 0 2
-13 2 2 2
-6 3 2 3
-14 3 2 3
-1 3 1 1
-3 1 2 2
-7 0 0 1
-14 3 0 3
-13 3 1 3
-7 2 2 0
-15 3 0 0
-14 0 3 0
-1 2 0 2
-3 2 2 1
-7 0 0 2
-14 3 0 0
-13 0 3 0
-9 0 2 0
-14 0 2 0
-1 0 1 1
-7 2 2 0
-7 0 3 3
-7 3 1 2
-8 0 2 2
-14 2 1 2
-14 2 3 2
-1 2 1 1
-3 1 1 0
-14 1 0 1
-13 1 3 1
-7 2 0 2
-6 3 2 2
-14 2 3 2
-1 0 2 0
-3 0 1 1
-7 1 1 3
-7 2 0 0
-7 3 1 2
-7 2 3 0
-14 0 2 0
-1 0 1 1
-7 0 0 3
-14 0 0 0
-13 0 1 0
-10 3 2 2
-14 2 1 2
-1 2 1 1
-3 1 0 0
-14 3 0 2
-13 2 0 2
-7 0 2 1
-7 2 2 3
-10 2 3 1
-14 1 1 1
-1 0 1 0
-3 0 1 1
-14 2 0 0
-13 0 2 0
-7 3 1 2
-7 1 2 3
-8 0 2 0
-14 0 3 0
-1 1 0 1
-3 1 2 2
-7 2 3 1
-7 2 1 3
-7 2 3 0
-11 0 3 1
-14 1 1 1
-1 2 1 2
-3 2 0 1
-14 2 0 2
-13 2 2 2
-14 3 0 0
-13 0 3 0
-7 0 0 3
-6 3 2 2
-14 2 1 2
-1 1 2 1
-7 0 2 0
-7 2 1 2
-7 3 0 0
-14 0 3 0
-1 0 1 1
-3 1 0 3
-7 3 1 0
-7 3 3 2
-14 0 0 1
-13 1 2 1
-8 1 0 0
-14 0 3 0
-1 3 0 3
-3 3 2 1
-7 0 2 0
-7 0 2 3
-7 2 0 2
-6 3 2 2
-14 2 2 2
-14 2 3 2
-1 2 1 1
-3 1 1 0
-7 3 3 1
-7 1 3 3
-7 0 1 2
-9 1 2 1
-14 1 2 1
-1 0 1 0
-3 0 0 3
-7 2 0 1
-7 3 2 0
-9 0 2 2
-14 2 3 2
-1 2 3 3
-14 1 0 2
-13 2 2 2
-7 1 2 1
-12 2 0 1
-14 1 3 1
-14 1 1 1
-1 1 3 3
-3 3 1 2
-7 2 0 0
-7 1 2 3
-7 1 3 1
-4 0 3 1
-14 1 2 1
-14 1 3 1
-1 1 2 2
-7 3 3 1
-7 2 2 3
-12 0 1 0
-14 0 3 0
-1 0 2 2
-3 2 2 1
-7 3 1 2
-7 3 2 0
-0 0 3 2
-14 2 3 2
-1 1 2 1
-3 1 0 0
-7 2 1 2
-7 1 2 1
-15 1 3 2
-14 2 1 2
-14 2 2 2
-1 2 0 0
-3 0 2 1
-7 1 0 3
-7 1 2 2
-7 1 1 0
-1 3 3 2
-14 2 3 2
-14 2 2 2
-1 2 1 1
-3 1 0 2
-7 0 1 0
-7 2 3 1
-1 3 3 0
-14 0 1 0
-1 0 2 2
-3 2 0 0
-7 1 1 1
-7 2 0 3
-7 3 3 2
-15 1 3 3
-14 3 3 3
-1 0 3 0
-7 2 0 2
-7 0 1 3
-7 0 3 1
-6 3 2 1
-14 1 2 1
-14 1 1 1
-1 0 1 0
-3 0 2 3
-7 3 1 2
-7 3 3 0
-7 3 2 1
-7 2 0 2
-14 2 1 2
-1 2 3 3
-7 3 2 2
-7 1 2 1
-9 0 2 0
-14 0 2 0
-14 0 3 0
-1 3 0 3
-3 3 0 1
-7 1 3 3
-14 1 0 0
-13 0 3 0
-7 2 3 2
-12 2 0 3
-14 3 3 3
-1 1 3 1
-3 1 2 0
-7 3 1 2
-7 3 0 1
-7 1 1 3
-14 3 2 3
-14 3 2 3
-14 3 1 3
-1 0 3 0
-3 0 3 1
-7 1 3 3
-7 0 2 2
-7 2 3 0
-4 0 3 2
-14 2 2 2
-1 2 1 1
-7 1 2 0
-7 2 3 3
-7 0 0 2
-10 2 3 3
-14 3 1 3
-1 3 1 1
-7 3 1 3
-7 3 2 0
-2 2 0 2
-14 2 1 2
-14 2 1 2
-1 2 1 1
-14 2 0 0
-13 0 1 0
-7 3 0 2
-7 0 2 3
-7 2 0 0
-14 0 2 0
-1 0 1 1
-3 1 0 3
-14 1 0 0
-13 0 3 0
-7 2 0 2
-7 2 2 1
-8 2 0 1
-14 1 3 1
-14 1 3 1
-1 1 3 3
-3 3 2 2
-7 2 3 0
-7 2 1 3
-7 3 3 1
-0 1 0 3
-14 3 2 3
-14 3 1 3
-1 3 2 2
-3 2 3 1
-7 0 0 2
-7 3 0 0
-7 2 2 3
-9 0 2 0
-14 0 1 0
-1 0 1 1
-7 2 3 2
-7 0 1 3
-7 0 2 0
-5 2 3 2
-14 2 2 2
-1 1 2 1
-3 1 1 2
-7 2 0 1
-5 1 3 1
-14 1 1 1
-1 2 1 2
-3 2 3 1
-7 3 0 3
-7 0 0 2
-14 2 0 0
-13 0 1 0
-14 0 2 0
-14 0 3 0
-1 1 0 1
-3 1 1 3
-7 2 2 1
-7 3 2 0
-8 1 0 1
-14 1 3 1
-1 1 3 3
-3 3 2 1
-14 2 0 3
-13 3 0 3
-14 1 0 0
-13 0 0 0
-14 0 0 2
-13 2 3 2
-10 3 2 2
-14 2 1 2
-14 2 2 2
-1 1 2 1
-3 1 3 2
-7 2 3 0
-14 2 0 3
-13 3 1 3
-7 0 1 1
-1 3 3 1
-14 1 3 1
-1 1 2 2
-3 2 2 1
-14 0 0 2
-13 2 2 2
-7 1 1 0
-7 0 0 3
-3 0 2 0
-14 0 3 0
-1 0 1 1
-3 1 1 2
-7 2 2 3
-7 2 0 0
-7 3 0 1
-5 0 3 0
-14 0 3 0
-1 2 0 2
-7 2 3 0
-14 1 0 3
-13 3 0 3
-14 1 0 1
-13 1 1 1
-15 1 0 3
-14 3 1 3
-1 3 2 2
-3 2 2 1
-7 2 1 2
-14 0 0 3
-13 3 1 3
-7 0 1 0
-7 3 0 0
-14 0 2 0
-1 0 1 1
-3 1 1 2
-7 2 1 3
-7 3 0 1
-7 2 3 0
-11 0 3 3
-14 3 3 3
-1 2 3 2
-3 2 1 1
-7 2 2 3
-7 0 1 2
-14 1 0 0
-13 0 0 0
-10 2 3 2
-14 2 1 2
-14 2 3 2
-1 2 1 1
-7 3 3 0
-7 3 0 3
-7 3 2 2
-9 3 2 2
-14 2 1 2
-1 2 1 1
-3 1 2 2
-14 0 0 1
-13 1 0 1
-7 0 0 3
-7 1 1 0
-13 0 1 0
-14 0 1 0
-14 0 2 0
-1 2 0 2
-14 2 0 0
-13 0 2 0
-7 2 3 3
-11 0 3 1
-14 1 2 1
-1 1 2 2
-3 2 1 1
-7 3 3 3
-7 3 3 2
-2 0 2 3
-14 3 1 3
-14 3 3 3
-1 1 3 1
-3 1 0 3
-7 1 1 2
-7 3 0 1
-12 0 1 1
-14 1 2 1
-1 1 3 3
-3 3 3 1
-14 3 0 2
-13 2 0 2
-7 2 2 3
-11 0 3 3
-14 3 2 3
-1 1 3 1
-3 1 1 2
-7 3 3 1
-7 1 2 3
-4 0 3 3
-14 3 3 3
-14 3 2 3
-1 2 3 2
-3 2 0 0
-7 0 2 2
-14 2 0 3
-13 3 1 3
-1 3 3 1
-14 1 2 1
-14 1 2 1
-1 1 0 0
-3 0 2 2
-7 2 1 0
-7 1 0 1
-15 1 0 1
-14 1 2 1
-14 1 2 1
-1 2 1 2
-3 2 2 1
-7 3 3 3
-7 3 2 2
-8 0 2 0
-14 0 3 0
-1 0 1 1
-7 0 2 2
-7 2 1 3
-14 1 0 0
-13 0 3 0
-2 2 0 0
-14 0 3 0
-14 0 3 0
-1 0 1 1
-3 1 0 2
-7 2 2 0
-7 2 3 1
-11 0 3 0
-14 0 3 0
-14 0 1 0
-1 0 2 2
-3 2 2 3
-7 2 2 0
-7 1 3 2
-14 3 0 1
-13 1 3 1
-12 0 1 0
-14 0 2 0
-14 0 3 0
-1 3 0 3
-3 3 2 0
-7 2 2 2
-7 0 1 3
-6 3 2 3
-14 3 1 3
-1 3 0 0
diff --git a/2018/d16/ex2/ex2.py b/2018/d16/ex2/ex2.py
deleted file mode 100755
index db81638..0000000
--- a/2018/d16/ex2/ex2.py
+++ /dev/null
@@ -1,133 +0,0 @@
-#!/usr/bin/env python
-
-import copy
-import enum
-import sys
-from typing import NamedTuple
-
-
-class OpCode(enum.StrEnum):
-    ADDR = "addr"
-    ADDI = "addi"
-    MULR = "mulr"
-    MULI = "muli"
-    BANR = "banr"
-    BANI = "bani"
-    BORR = "borr"
-    BORI = "bori"
-    SETR = "setr"
-    SETI = "seti"
-    GTIR = "gtir"
-    GTRI = "gtri"
-    GTRR = "gtrr"
-    EQIR = "eqir"
-    EQRI = "eqri"
-    EQRR = "eqrr"
-
-    def apply(self, registers: list[int], a: int, b: int, c: int) -> list[int]:
-        registers = copy.deepcopy(registers)
-        if self == OpCode.ADDR:
-            registers[c] = registers[a] + registers[b]
-        if self == OpCode.ADDI:
-            registers[c] = registers[a] + b
-        if self == OpCode.MULR:
-            registers[c] = registers[a] * registers[b]
-        if self == OpCode.MULI:
-            registers[c] = registers[a] * b
-        if self == OpCode.BANR:
-            registers[c] = registers[a] & registers[b]
-        if self == OpCode.BANI:
-            registers[c] = registers[a] & b
-        if self == OpCode.BORR:
-            registers[c] = registers[a] | registers[b]
-        if self == OpCode.BORI:
-            registers[c] = registers[a] | b
-        if self == OpCode.SETR:
-            registers[c] = registers[a]
-        if self == OpCode.SETI:
-            registers[c] = a
-        if self == OpCode.GTIR:
-            registers[c] = a > registers[b]
-        if self == OpCode.GTRI:
-            registers[c] = registers[a] > b
-        if self == OpCode.GTRR:
-            registers[c] = registers[a] > registers[b]
-        if self == OpCode.EQIR:
-            registers[c] = a == registers[b]
-        if self == OpCode.EQRI:
-            registers[c] = registers[a] == b
-        if self == OpCode.EQRR:
-            registers[c] = registers[a] == registers[b]
-        return registers
-
-
-Instruction = list[int]
-
-
-class Example(NamedTuple):
-    before: list[int]
-    data: Instruction
-    after: list[int]
-
-
-def solve(input: str) -> int:
-    def parse_example(input: list[str]) -> Example:
-        before = input[0].removeprefix("Before: [").removesuffix("]")
-        data = input[1]
-        after = input[2].removeprefix("After:  [").removesuffix("]")
-        return Example(
-            [int(n) for n in before.split(", ")],
-            [int(n) for n in data.split()],
-            [int(n) for n in after.split(", ")],
-        )
-
-    def parse_examples(input: str) -> list[Example]:
-        return [parse_example(example.splitlines()) for example in input.split("\n\n")]
-
-    def parse_data(input: list[str]) -> list[Instruction]:
-        return [[int(n) for n in line.split()] for line in input]
-
-    def parse(input: str) -> tuple[list[Example], list[Instruction]]:
-        examples, data = input.split("\n\n\n\n")
-        return parse_examples(examples), parse_data(data.splitlines())
-
-    def find_opcodes(examples: list[Example]) -> dict[int, OpCode]:
-        candidates: dict[int, set[OpCode]] = {n: set(OpCode) for n in range(16)}
-
-        for example in examples:
-            opcode, a, b, c = example.data
-            candidates[opcode] &= {
-                op
-                for op in candidates[opcode]
-                if op.apply(example.before, a, b, c) == example.after
-            }
-
-        while not all(len(ops) == 1 for ops in candidates.values()):
-            singles = {
-                n: next(iter(ops)) for n, ops in candidates.items() if len(ops) == 1
-            }
-            for n in candidates:
-                if n in singles:
-                    continue
-                candidates[n] -= set(singles.values())
-        return {n: ops.pop() for n, ops in candidates.items()}
-
-    def run_program(data: list[Instruction], opcodes: dict[int, OpCode]) -> list[int]:
-        registers = [0] * 4
-        for opcode, a, b, c in data:
-            registers = opcodes[opcode].apply(registers, a, b, c)
-        return registers
-
-    examples, data = parse(input)
-    opcodes = find_opcodes(examples)
-    registers = run_program(data, opcodes)
-    return registers[0]
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d16/ex2/input b/2018/d16/ex2/input
deleted file mode 100644
index 88aab0a..0000000
--- a/2018/d16/ex2/input
+++ /dev/null
@@ -1,4148 +0,0 @@
-Before: [1, 1, 0, 1]
-0 1 0 1
-After:  [1, 1, 0, 1]
-
-Before: [2, 2, 2, 1]
-2 1 2 2
-After:  [2, 2, 1, 1]
-
-Before: [1, 3, 2, 2]
-1 2 2 0
-After:  [4, 3, 2, 2]
-
-Before: [2, 2, 1, 1]
-8 0 2 1
-After:  [2, 3, 1, 1]
-
-Before: [0, 1, 2, 2]
-7 3 1 1
-After:  [0, 3, 2, 2]
-
-Before: [1, 2, 2, 0]
-8 2 0 1
-After:  [1, 3, 2, 0]
-
-Before: [2, 2, 2, 0]
-2 1 2 0
-After:  [1, 2, 2, 0]
-
-Before: [0, 1, 1, 1]
-3 1 0 1
-After:  [0, 1, 1, 1]
-
-Before: [2, 3, 2, 2]
-15 1 2 2
-After:  [2, 3, 6, 2]
-
-Before: [0, 3, 1, 1]
-9 0 0 3
-After:  [0, 3, 1, 0]
-
-Before: [2, 0, 1, 1]
-4 2 3 2
-After:  [2, 0, 0, 1]
-
-Before: [1, 1, 3, 3]
-6 0 3 3
-After:  [1, 1, 3, 0]
-
-Before: [3, 2, 3, 2]
-11 1 3 3
-After:  [3, 2, 3, 1]
-
-Before: [3, 2, 1, 2]
-14 3 3 1
-After:  [3, 6, 1, 2]
-
-Before: [1, 0, 1, 2]
-10 1 0 1
-After:  [1, 1, 1, 2]
-
-Before: [1, 2, 0, 2]
-11 1 3 2
-After:  [1, 2, 1, 2]
-
-Before: [3, 3, 0, 0]
-14 0 3 2
-After:  [3, 3, 9, 0]
-
-Before: [2, 0, 2, 3]
-6 0 3 1
-After:  [2, 0, 2, 3]
-
-Before: [3, 2, 2, 2]
-11 1 3 1
-After:  [3, 1, 2, 2]
-
-Before: [2, 2, 0, 2]
-13 1 2 1
-After:  [2, 4, 0, 2]
-
-Before: [2, 2, 2, 0]
-8 3 1 3
-After:  [2, 2, 2, 2]
-
-Before: [2, 3, 1, 3]
-6 0 3 2
-After:  [2, 3, 0, 3]
-
-Before: [3, 3, 1, 1]
-14 1 3 1
-After:  [3, 9, 1, 1]
-
-Before: [2, 2, 1, 3]
-6 0 3 2
-After:  [2, 2, 0, 3]
-
-Before: [2, 3, 2, 3]
-15 3 3 0
-After:  [9, 3, 2, 3]
-
-Before: [1, 0, 0, 3]
-10 1 0 1
-After:  [1, 1, 0, 3]
-
-Before: [1, 3, 1, 3]
-15 1 3 3
-After:  [1, 3, 1, 9]
-
-Before: [1, 1, 2, 3]
-15 1 2 3
-After:  [1, 1, 2, 2]
-
-Before: [1, 1, 3, 0]
-0 1 0 0
-After:  [1, 1, 3, 0]
-
-Before: [1, 2, 3, 2]
-13 3 2 2
-After:  [1, 2, 4, 2]
-
-Before: [0, 1, 1, 2]
-9 0 0 0
-After:  [0, 1, 1, 2]
-
-Before: [2, 2, 0, 0]
-12 1 1 3
-After:  [2, 2, 0, 1]
-
-Before: [1, 0, 2, 3]
-6 0 3 2
-After:  [1, 0, 0, 3]
-
-Before: [1, 1, 0, 3]
-6 0 3 3
-After:  [1, 1, 0, 0]
-
-Before: [0, 2, 0, 0]
-9 0 0 2
-After:  [0, 2, 0, 0]
-
-Before: [0, 2, 2, 3]
-5 0 3 0
-After:  [3, 2, 2, 3]
-
-Before: [1, 0, 2, 1]
-5 1 2 3
-After:  [1, 0, 2, 2]
-
-Before: [1, 1, 3, 3]
-0 1 0 2
-After:  [1, 1, 1, 3]
-
-Before: [2, 0, 3, 1]
-12 2 3 0
-After:  [0, 0, 3, 1]
-
-Before: [0, 3, 2, 0]
-5 0 2 0
-After:  [2, 3, 2, 0]
-
-Before: [2, 1, 2, 2]
-1 2 2 0
-After:  [4, 1, 2, 2]
-
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-1 3 3 2
-14 2 1 2
-1 0 2 0
-3 0 3 2
-7 0 3 0
-7 0 3 3
-7 2 2 1
-7 3 0 3
-14 3 1 3
-14 3 3 3
-1 2 3 2
-3 2 1 1
-7 2 2 2
-7 2 0 3
-7 3 0 0
-12 2 0 0
-14 0 3 0
-14 0 1 0
-1 0 1 1
-7 1 3 2
-7 2 0 0
-7 1 3 3
-4 0 3 3
-14 3 1 3
-1 3 1 1
-14 2 0 3
-13 3 0 3
-7 3 1 0
-14 0 0 2
-13 2 2 2
-6 3 2 3
-14 3 2 3
-1 3 1 1
-3 1 2 2
-7 0 0 1
-14 3 0 3
-13 3 1 3
-7 2 2 0
-15 3 0 0
-14 0 3 0
-1 2 0 2
-3 2 2 1
-7 0 0 2
-14 3 0 0
-13 0 3 0
-9 0 2 0
-14 0 2 0
-1 0 1 1
-7 2 2 0
-7 0 3 3
-7 3 1 2
-8 0 2 2
-14 2 1 2
-14 2 3 2
-1 2 1 1
-3 1 1 0
-14 1 0 1
-13 1 3 1
-7 2 0 2
-6 3 2 2
-14 2 3 2
-1 0 2 0
-3 0 1 1
-7 1 1 3
-7 2 0 0
-7 3 1 2
-7 2 3 0
-14 0 2 0
-1 0 1 1
-7 0 0 3
-14 0 0 0
-13 0 1 0
-10 3 2 2
-14 2 1 2
-1 2 1 1
-3 1 0 0
-14 3 0 2
-13 2 0 2
-7 0 2 1
-7 2 2 3
-10 2 3 1
-14 1 1 1
-1 0 1 0
-3 0 1 1
-14 2 0 0
-13 0 2 0
-7 3 1 2
-7 1 2 3
-8 0 2 0
-14 0 3 0
-1 1 0 1
-3 1 2 2
-7 2 3 1
-7 2 1 3
-7 2 3 0
-11 0 3 1
-14 1 1 1
-1 2 1 2
-3 2 0 1
-14 2 0 2
-13 2 2 2
-14 3 0 0
-13 0 3 0
-7 0 0 3
-6 3 2 2
-14 2 1 2
-1 1 2 1
-7 0 2 0
-7 2 1 2
-7 3 0 0
-14 0 3 0
-1 0 1 1
-3 1 0 3
-7 3 1 0
-7 3 3 2
-14 0 0 1
-13 1 2 1
-8 1 0 0
-14 0 3 0
-1 3 0 3
-3 3 2 1
-7 0 2 0
-7 0 2 3
-7 2 0 2
-6 3 2 2
-14 2 2 2
-14 2 3 2
-1 2 1 1
-3 1 1 0
-7 3 3 1
-7 1 3 3
-7 0 1 2
-9 1 2 1
-14 1 2 1
-1 0 1 0
-3 0 0 3
-7 2 0 1
-7 3 2 0
-9 0 2 2
-14 2 3 2
-1 2 3 3
-14 1 0 2
-13 2 2 2
-7 1 2 1
-12 2 0 1
-14 1 3 1
-14 1 1 1
-1 1 3 3
-3 3 1 2
-7 2 0 0
-7 1 2 3
-7 1 3 1
-4 0 3 1
-14 1 2 1
-14 1 3 1
-1 1 2 2
-7 3 3 1
-7 2 2 3
-12 0 1 0
-14 0 3 0
-1 0 2 2
-3 2 2 1
-7 3 1 2
-7 3 2 0
-0 0 3 2
-14 2 3 2
-1 1 2 1
-3 1 0 0
-7 2 1 2
-7 1 2 1
-15 1 3 2
-14 2 1 2
-14 2 2 2
-1 2 0 0
-3 0 2 1
-7 1 0 3
-7 1 2 2
-7 1 1 0
-1 3 3 2
-14 2 3 2
-14 2 2 2
-1 2 1 1
-3 1 0 2
-7 0 1 0
-7 2 3 1
-1 3 3 0
-14 0 1 0
-1 0 2 2
-3 2 0 0
-7 1 1 1
-7 2 0 3
-7 3 3 2
-15 1 3 3
-14 3 3 3
-1 0 3 0
-7 2 0 2
-7 0 1 3
-7 0 3 1
-6 3 2 1
-14 1 2 1
-14 1 1 1
-1 0 1 0
-3 0 2 3
-7 3 1 2
-7 3 3 0
-7 3 2 1
-7 2 0 2
-14 2 1 2
-1 2 3 3
-7 3 2 2
-7 1 2 1
-9 0 2 0
-14 0 2 0
-14 0 3 0
-1 3 0 3
-3 3 0 1
-7 1 3 3
-14 1 0 0
-13 0 3 0
-7 2 3 2
-12 2 0 3
-14 3 3 3
-1 1 3 1
-3 1 2 0
-7 3 1 2
-7 3 0 1
-7 1 1 3
-14 3 2 3
-14 3 2 3
-14 3 1 3
-1 0 3 0
-3 0 3 1
-7 1 3 3
-7 0 2 2
-7 2 3 0
-4 0 3 2
-14 2 2 2
-1 2 1 1
-7 1 2 0
-7 2 3 3
-7 0 0 2
-10 2 3 3
-14 3 1 3
-1 3 1 1
-7 3 1 3
-7 3 2 0
-2 2 0 2
-14 2 1 2
-14 2 1 2
-1 2 1 1
-14 2 0 0
-13 0 1 0
-7 3 0 2
-7 0 2 3
-7 2 0 0
-14 0 2 0
-1 0 1 1
-3 1 0 3
-14 1 0 0
-13 0 3 0
-7 2 0 2
-7 2 2 1
-8 2 0 1
-14 1 3 1
-14 1 3 1
-1 1 3 3
-3 3 2 2
-7 2 3 0
-7 2 1 3
-7 3 3 1
-0 1 0 3
-14 3 2 3
-14 3 1 3
-1 3 2 2
-3 2 3 1
-7 0 0 2
-7 3 0 0
-7 2 2 3
-9 0 2 0
-14 0 1 0
-1 0 1 1
-7 2 3 2
-7 0 1 3
-7 0 2 0
-5 2 3 2
-14 2 2 2
-1 1 2 1
-3 1 1 2
-7 2 0 1
-5 1 3 1
-14 1 1 1
-1 2 1 2
-3 2 3 1
-7 3 0 3
-7 0 0 2
-14 2 0 0
-13 0 1 0
-14 0 2 0
-14 0 3 0
-1 1 0 1
-3 1 1 3
-7 2 2 1
-7 3 2 0
-8 1 0 1
-14 1 3 1
-1 1 3 3
-3 3 2 1
-14 2 0 3
-13 3 0 3
-14 1 0 0
-13 0 0 0
-14 0 0 2
-13 2 3 2
-10 3 2 2
-14 2 1 2
-14 2 2 2
-1 1 2 1
-3 1 3 2
-7 2 3 0
-14 2 0 3
-13 3 1 3
-7 0 1 1
-1 3 3 1
-14 1 3 1
-1 1 2 2
-3 2 2 1
-14 0 0 2
-13 2 2 2
-7 1 1 0
-7 0 0 3
-3 0 2 0
-14 0 3 0
-1 0 1 1
-3 1 1 2
-7 2 2 3
-7 2 0 0
-7 3 0 1
-5 0 3 0
-14 0 3 0
-1 2 0 2
-7 2 3 0
-14 1 0 3
-13 3 0 3
-14 1 0 1
-13 1 1 1
-15 1 0 3
-14 3 1 3
-1 3 2 2
-3 2 2 1
-7 2 1 2
-14 0 0 3
-13 3 1 3
-7 0 1 0
-7 3 0 0
-14 0 2 0
-1 0 1 1
-3 1 1 2
-7 2 1 3
-7 3 0 1
-7 2 3 0
-11 0 3 3
-14 3 3 3
-1 2 3 2
-3 2 1 1
-7 2 2 3
-7 0 1 2
-14 1 0 0
-13 0 0 0
-10 2 3 2
-14 2 1 2
-14 2 3 2
-1 2 1 1
-7 3 3 0
-7 3 0 3
-7 3 2 2
-9 3 2 2
-14 2 1 2
-1 2 1 1
-3 1 2 2
-14 0 0 1
-13 1 0 1
-7 0 0 3
-7 1 1 0
-13 0 1 0
-14 0 1 0
-14 0 2 0
-1 2 0 2
-14 2 0 0
-13 0 2 0
-7 2 3 3
-11 0 3 1
-14 1 2 1
-1 1 2 2
-3 2 1 1
-7 3 3 3
-7 3 3 2
-2 0 2 3
-14 3 1 3
-14 3 3 3
-1 1 3 1
-3 1 0 3
-7 1 1 2
-7 3 0 1
-12 0 1 1
-14 1 2 1
-1 1 3 3
-3 3 3 1
-14 3 0 2
-13 2 0 2
-7 2 2 3
-11 0 3 3
-14 3 2 3
-1 1 3 1
-3 1 1 2
-7 3 3 1
-7 1 2 3
-4 0 3 3
-14 3 3 3
-14 3 2 3
-1 2 3 2
-3 2 0 0
-7 0 2 2
-14 2 0 3
-13 3 1 3
-1 3 3 1
-14 1 2 1
-14 1 2 1
-1 1 0 0
-3 0 2 2
-7 2 1 0
-7 1 0 1
-15 1 0 1
-14 1 2 1
-14 1 2 1
-1 2 1 2
-3 2 2 1
-7 3 3 3
-7 3 2 2
-8 0 2 0
-14 0 3 0
-1 0 1 1
-7 0 2 2
-7 2 1 3
-14 1 0 0
-13 0 3 0
-2 2 0 0
-14 0 3 0
-14 0 3 0
-1 0 1 1
-3 1 0 2
-7 2 2 0
-7 2 3 1
-11 0 3 0
-14 0 3 0
-14 0 1 0
-1 0 2 2
-3 2 2 3
-7 2 2 0
-7 1 3 2
-14 3 0 1
-13 1 3 1
-12 0 1 0
-14 0 2 0
-14 0 3 0
-1 3 0 3
-3 3 2 0
-7 2 2 2
-7 0 1 3
-6 3 2 3
-14 3 1 3
-1 3 0 0
diff --git a/2018/d17/ex1/ex1.py b/2018/d17/ex1/ex1.py
deleted file mode 100755
index b4a507b..0000000
--- a/2018/d17/ex1/ex1.py
+++ /dev/null
@@ -1,108 +0,0 @@
-#!/usr/bin/env python
-
-import enum
-import itertools
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-
-class Direction(enum.Enum):
-    DOWN = Point(0, 1)
-    LEFT = Point(-1, 0)
-    RIGHT = Point(1, 0)
-
-    def apply(self, p: Point) -> Point:
-        dx, dy = self.value
-        return Point(p.x + dx, p.y + dy)
-
-
-def solve(input: str) -> int:
-    def parse_range(input: str) -> range:
-        if ".." not in input:
-            input = input + ".." + input
-        start, end = map(int, input.split(".."))
-        return range(start, end + 1)
-
-    def parse_line(input: str) -> Iterator[Point]:
-        xs, ys = sorted(input.split(", "))
-        yield from map(
-            Point._make,
-            itertools.product(parse_range(xs[2:]), parse_range(ys[2:])),
-        )
-
-    def parse(input: list[str]) -> set[Point]:
-        return {p for line in input for p in parse_line(line)}
-
-    def flow(clay: set[Point], source: Point) -> set[Point]:
-        max_y = max(p.y for p in clay)
-
-        def helper(
-            source: Point,
-            water: set[Point],
-            settled: set[Point],
-            direction: Direction = Direction.DOWN,
-        ) -> bool:
-            # Clay is considered "settled"
-            if source in clay:
-                return True
-
-            # We've already seen this, return early
-            if source in water:
-                return source in settled
-
-            # Account for this new source
-            water.add(source)
-
-            below = Direction.DOWN.apply(source)
-            if below not in clay:
-                if below.y <= max_y:
-                    helper(below, water, settled)
-                if below not in settled:
-                    return False
-
-            left = Direction.LEFT.apply(source)
-            right = Direction.RIGHT.apply(source)
-            l_filled = helper(left, water, settled, Direction.LEFT)
-            r_filled = helper(right, water, settled, Direction.RIGHT)
-
-            if direction == Direction.DOWN and l_filled and r_filled:
-                settled.add(source)
-                while left in water:
-                    settled.add(left)
-                    left = Direction.LEFT.apply(left)
-                while right in water:
-                    settled.add(right)
-                    right = Direction.RIGHT.apply(right)
-                return True
-
-            return (direction == Direction.LEFT and l_filled) or (
-                direction == Direction.RIGHT and r_filled
-            )
-
-        assert source not in clay  # Sanity check
-        water: set[Point] = set()
-        settled: set[Point] = set()
-        helper(source, water, settled)
-        assert settled <= water  # Sanity check
-        return water
-
-    clay = parse(input.splitlines())
-    sys.setrecursionlimit(5000)  # HACK
-    water = flow(clay, Point(500, 0))
-    min_y, max_y = min(p.y for p in clay), max(p.y for p in clay)
-    return sum(min_y <= p.y <= max_y for p in water)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d17/ex1/input b/2018/d17/ex1/input
deleted file mode 100644
index 623f657..0000000
--- a/2018/d17/ex1/input
+++ /dev/null
@@ -1,1470 +0,0 @@
-x=581, y=396..399
-y=1491, x=566..573
-y=1470, x=599..601
-y=980, x=526..541
-y=1173, x=487..497
-y=402, x=616..623
-y=361, x=534..577
-x=461, y=1151..1163
-x=530, y=431..443
-x=426, y=976..980
-y=794, x=520..524
-y=1574, x=600..604
-x=556, y=667..677
-x=482, y=1131..1141
-x=508, y=158..169
-x=472, y=1149..1159
-y=564, x=600..619
-x=590, y=1607..1616
-y=1401, x=421..437
-x=566, y=1187..1191
-x=616, y=392..402
-x=404, y=1561..1572
-y=886, x=580..601
-x=464, y=786..795
-y=1588, x=414..417
-x=568, y=1255..1257
-x=511, y=719..741
-x=580, y=716..733
-x=553, y=409..420
-x=430, y=133..147
-y=940, x=486..498
-y=748, x=560..577
-x=546, y=139..147
-x=470, y=1202..1204
-y=304, x=465..484
-x=610, y=68..89
-x=589, y=1139..1162
-x=409, y=60..82
-x=452, y=1037..1046
-x=575, y=516..529
-x=588, y=1370..1377
-y=843, x=421..423
-y=320, x=504..515
-x=501, y=1299..1327
-y=1010, x=604..609
-x=526, y=656..668
-y=385, x=478..481
-x=481, y=763..775
-x=410, y=418..428
-x=615, y=1279..1307
-x=464, y=553..566
-x=619, y=593..603
-x=556, y=450..477
-x=525, y=116..126
-x=538, y=955..963
-y=1127, x=592..616
-y=1229, x=485..503
-x=474, y=270..282
-y=1295, x=408..420
-y=1297, x=465..492
-x=550, y=500..519
-y=1148, x=572..574
-x=450, y=575..587
-y=590, x=552..567
-x=516, y=385..394
-x=594, y=1042..1048
-x=595, y=794..806
-x=418, y=1093..1096
-y=968, x=471..494
-x=623, y=856..874
-x=447, y=208..217
-x=444, y=578..590
-x=465, y=683..694
-x=566, y=1468..1491
-y=83, x=600..603
-x=416, y=1435..1451
-y=187, x=620..626
-y=932, x=561..571
-y=775, x=481..486
-y=1329, x=537..549
-x=511, y=98..107
-x=471, y=83..101
-x=553, y=80..108
-x=462, y=743..753
-x=485, y=8..22
-x=551, y=1034..1038
-y=1490, x=618..626
-y=408, x=479..502
-y=1083, x=443..465
-x=515, y=311..320
-x=609, y=1140..1162
-x=519, y=207..210
-x=483, y=1425..1436
-y=240, x=404..407
-x=450, y=974..987
-x=409, y=332..343
-x=498, y=1431..1433
-x=431, y=1458..1471
-x=576, y=1076..1099
-x=594, y=1586..1599
-x=613, y=90..107
-x=417, y=1500..1510
-y=1357, x=600..612
-y=1048, x=405..420
-x=475, y=84..101
-x=579, y=368..380
-y=236, x=594..605
-x=605, y=1590..1596
-x=577, y=1532..1540
-x=432, y=201..218
-y=56, x=498..500
-y=1590, x=603..605
-x=531, y=1508..1512
-x=437, y=333..343
-y=1431, x=498..502
-x=565, y=499..519
-x=404, y=153..163
-y=1099, x=576..586
-x=558, y=1185..1195
-y=477, x=556..565
-x=623, y=1552..1563
-x=430, y=59..83
-y=849, x=421..423
-y=987, x=450..472
-x=408, y=805..818
-x=593, y=250..264
-y=561, x=608..613
-x=584, y=1608..1616
-x=485, y=1321..1330
-x=616, y=1235..1242
-x=480, y=417..428
-x=435, y=976..980
-x=565, y=449..477
-x=428, y=1587..1608
-y=39, x=508..512
-y=967, x=432..458
-x=404, y=572..592
-x=579, y=1199..1218
-x=622, y=729..741
-y=322, x=554..600
-x=525, y=1373..1394
-y=480, x=607..616
-x=524, y=1340..1345
-y=581, x=589..591
-y=679, x=448..464
-y=809, x=451..453
-y=963, x=538..543
-y=1593, x=483..498
-x=457, y=396..404
-x=610, y=1019..1042
-x=496, y=419..433
-x=476, y=117..127
-x=437, y=1385..1401
-x=490, y=517..529
-x=581, y=1311..1332
-x=575, y=636..648
-y=292, x=571..576
-x=568, y=960..965
-y=1151, x=544..547
-x=616, y=469..480
-x=413, y=1412..1415
-x=511, y=516..518
-x=603, y=495..518
-y=210, x=519..537
-y=157, x=416..420
-y=795, x=445..464
-x=570, y=366..377
-y=1513, x=405..423
-x=434, y=268..283
-y=999, x=426..436
-y=592, x=404..421
-x=572, y=1102..1107
-y=599, x=606..609
-y=749, x=452..454
-y=376, x=442..453
-y=1125, x=419..426
-x=520, y=769..794
-x=501, y=624..639
-x=613, y=31..52
-x=432, y=749..761
-x=411, y=769..788
-x=550, y=838..840
-y=315, x=417..438
-y=1610, x=413..415
-y=454, x=502..518
-y=1162, x=589..609
-x=525, y=1097..1109
-y=402, x=566..592
-x=449, y=208..217
-y=107, x=494..511
-x=420, y=525..550
-x=430, y=238..253
-x=489, y=1445..1450
-x=557, y=1284..1290
-x=604, y=1559..1574
-x=502, y=395..408
-x=469, y=376..388
-x=458, y=40..65
-y=1120, x=601..606
-y=135, x=418..421
-y=22, x=485..501
-y=514, x=444..464
-x=517, y=624..639
-x=548, y=301..322
-x=501, y=1586..1589
-x=493, y=459..470
-x=421, y=681..696
-x=423, y=1502..1513
-x=615, y=625..636
-x=465, y=1284..1297
-x=501, y=9..22
-x=625, y=766..771
-y=1247, x=482..484
-x=503, y=1215..1229
-x=586, y=1077..1099
-y=1422, x=580..582
-x=592, y=1111..1127
-x=501, y=115..126
-y=1059, x=585..589
-y=868, x=506..511
-x=488, y=332..345
-x=496, y=732..736
-y=42, x=501..519
-y=245, x=446..449
-y=73, x=551..568
-x=415, y=1539..1550
-x=456, y=302..304
-x=545, y=158..169
-x=481, y=383..385
-y=1327, x=501..506
-x=439, y=1016..1029
-x=432, y=1518..1525
-x=430, y=1540..1550
-x=507, y=1442..1451
-y=628, x=435..437
-x=598, y=1399..1413
-x=617, y=1020..1042
-x=416, y=1138..1149
-y=1235, x=452..455
-y=1165, x=428..455
-x=609, y=128..154
-x=583, y=952..958
-y=1538, x=598..612
-x=512, y=1223..1229
-x=478, y=848..860
-x=484, y=518..529
-x=421, y=278..291
-x=475, y=803..813
-y=860, x=478..480
-y=867, x=447..452
-x=581, y=1567..1589
-x=508, y=1143..1164
-x=461, y=162..166
-x=458, y=1091..1103
-x=485, y=1197..1208
-y=1040, x=461..463
-x=496, y=118..127
-x=572, y=1141..1148
-y=1023, x=550..560
-y=1124, x=601..606
-x=468, y=488..494
-y=1589, x=501..524
-x=617, y=984..987
-y=1029, x=439..459
-y=947, x=426..443
-x=408, y=132..147
-x=590, y=1000..1013
-x=563, y=1570..1582
-y=816, x=464..481
-x=447, y=855..867
-y=121, x=484..487
-x=442, y=1521..1531
-y=1242, x=612..616
-y=1514, x=574..578
-x=500, y=1257..1285
-x=577, y=541..544
-y=19, x=490..493
-x=517, y=1047..1057
-x=577, y=1446..1462
-x=418, y=135..140
-y=1197, x=508..511
-x=460, y=1612..1626
-y=282, x=474..562
-x=452, y=855..867
-x=560, y=947..953
-x=582, y=1411..1422
-x=476, y=1202..1204
-x=466, y=1621..1623
-x=555, y=1478..1504
-x=556, y=1331..1348
-x=405, y=1503..1513
-x=502, y=440..454
-x=510, y=1293..1295
-x=606, y=591..599
-x=588, y=1312..1332
-y=792, x=420..441
-x=521, y=825..846
-y=1287, x=579..597
-x=585, y=1054..1059
-y=1572, x=586..591
-x=413, y=805..818
-x=485, y=206..218
-y=148, x=601..603
-y=179, x=554..567
-y=127, x=476..496
-x=573, y=412..415
-y=1332, x=581..588
-x=585, y=1166..1177
-x=433, y=642..651
-x=554, y=154..179
-x=626, y=164..187
-x=420, y=659..668
-x=455, y=442..452
-x=567, y=1602..1628
-x=502, y=95..104
-x=498, y=562..588
-y=625, x=587..612
-y=1080, x=453..456
-x=521, y=1504..1522
-x=422, y=981..985
-x=609, y=1553..1563
-x=472, y=702..711
-x=607, y=1455..1483
-x=443, y=935..947
-x=449, y=1112..1123
-x=568, y=366..377
-x=444, y=989..1007
-y=1379, x=450..489
-x=581, y=896..915
-x=563, y=1187..1191
-x=574, y=1512..1514
-x=424, y=1542..1545
-y=1191, x=563..566
-x=609, y=591..599
-y=1007, x=604..609
-x=449, y=49..68
-x=472, y=1173..1186
-x=473, y=1305..1315
-x=606, y=537..547
-x=545, y=1543..1550
-x=573, y=964..986
-y=616, x=503..525
-y=1232, x=418..436
-x=471, y=803..813
-x=557, y=513..516
-x=547, y=1144..1151
-x=484, y=1245..1247
-x=543, y=954..963
-x=439, y=303..304
-y=607, x=563..571
-y=1446, x=431..447
-y=1234, x=506..508
-x=449, y=243..245
-x=504, y=95..104
-x=616, y=1110..1127
-x=524, y=918..933
-x=552, y=1496..1502
-y=566, x=464..484
-y=1512, x=529..531
-y=1599, x=594..611
-x=421, y=573..592
-x=471, y=953..968
-x=586, y=494..505
-y=1510, x=415..417
-x=444, y=504..514
-x=467, y=1466..1469
-x=404, y=1603..1616
-x=616, y=270..278
-x=479, y=395..408
-x=528, y=1124..1128
-x=462, y=723..735
-x=609, y=1509..1521
-y=1096, x=412..418
-y=818, x=408..413
-x=567, y=860..887
-x=419, y=1115..1125
-x=564, y=789..817
-y=846, x=515..521
-x=563, y=826..837
-y=470, x=470..493
-x=436, y=748..761
-x=524, y=1585..1589
-y=1358, x=424..450
-x=414, y=1583..1588
-y=1195, x=558..573
-y=283, x=434..458
-y=363, x=423..431
-y=364, x=486..493
-x=612, y=767..771
-y=107, x=613..620
-x=594, y=659..672
-x=603, y=148..151
-x=582, y=920..945
-x=548, y=982..1006
-x=547, y=1602..1628
-x=624, y=953..973
-x=612, y=1235..1242
-x=508, y=1191..1197
-x=559, y=513..516
-x=599, y=861..867
-y=550, x=407..420
-y=140, x=418..421
-x=422, y=1455..1465
-y=1257, x=565..568
-x=586, y=1498..1518
-y=259, x=553..574
-y=986, x=573..575
-x=457, y=870..884
-y=159, x=416..420
-y=648, x=575..600
-x=425, y=1580..1594
-x=423, y=1520..1531
-x=478, y=1571..1574
-y=544, x=483..577
-x=603, y=1040..1062
-x=428, y=419..428
-y=264, x=593..608
-y=1005, x=464..466
-y=587, x=450..452
-y=1471, x=415..431
-x=495, y=399..404
-x=485, y=1216..1229
-y=90, x=491..509
-x=438, y=313..315
-x=469, y=420..432
-y=488, x=461..468
-x=494, y=287..303
-x=456, y=1481..1507
-x=490, y=6..19
-y=241, x=610..624
-y=497, x=452..478
-y=668, x=507..526
-x=428, y=1141..1165
-y=608, x=429..475
-x=594, y=517..529
-y=192, x=581..604
-x=533, y=32..56
-x=421, y=1604..1616
-y=513, x=557..559
-x=568, y=67..73
-x=475, y=726..732
-x=515, y=824..846
-x=430, y=909..925
-y=1260, x=594..604
-y=415, x=570..573
-x=602, y=1400..1413
-y=1315, x=471..473
-x=594, y=1236..1260
-x=548, y=104..116
-y=1616, x=404..421
-x=404, y=768..788
-y=197, x=419..422
-x=556, y=1568..1589
-y=65, x=458..468
-x=512, y=27..39
-x=582, y=830..834
-x=461, y=1040..1043
-x=424, y=493..495
-y=741, x=511..539
-x=615, y=730..741
-x=574, y=1141..1148
-y=90, x=438..455
-x=562, y=1453..1471
-x=534, y=1166..1170
-x=616, y=925..942
-x=584, y=1356..1365
-y=1525, x=432..434
-y=1563, x=609..623
-x=440, y=1384..1388
-y=505, x=568..586
-x=521, y=1257..1285
-y=1163, x=461..478
-x=564, y=80..108
-x=547, y=1341..1345
-y=1170, x=532..534
-x=600, y=310..322
-x=423, y=353..363
-x=579, y=1283..1287
-y=462, x=580..606
-x=624, y=1072..1087
-x=447, y=877..880
-x=424, y=1455..1465
-y=798, x=609..620
-x=494, y=1323..1335
-y=1013, x=590..617
-y=484, x=578..597
-x=501, y=354..368
-x=587, y=717..733
-x=463, y=1196..1208
-x=411, y=1043..1045
-y=1318, x=463..480
-x=449, y=398..408
-x=415, y=249..257
-y=475, x=441..463
-x=556, y=138..147
-x=429, y=661..671
-x=439, y=810..828
-x=508, y=1425..1436
-y=1469, x=467..480
-x=412, y=662..671
-y=965, x=550..568
-x=456, y=1298..1315
-x=562, y=287..301
-x=490, y=1558..1573
-x=512, y=288..303
-y=462, x=619..625
-x=429, y=598..608
-x=436, y=1223..1232
-y=590, x=444..464
-x=478, y=383..385
-x=417, y=313..315
-x=557, y=1205..1218
-x=467, y=162..166
-y=1231, x=544..565
-x=537, y=1187..1201
-x=586, y=1556..1572
-x=617, y=1001..1013
-x=432, y=1306..1320
-x=447, y=1172..1186
-x=461, y=488..494
-x=473, y=1572..1574
-x=575, y=963..986
-y=562, x=470..474
-x=557, y=31..56
-y=519, x=550..565
-y=636, x=615..620
-x=501, y=75..82
-x=416, y=157..159
-x=611, y=1184..1187
-x=571, y=177..197
-x=580, y=1137..1152
-x=571, y=292..297
-x=608, y=1183..1187
-x=469, y=1097..1100
-y=299, x=502..505
-x=581, y=1041..1048
-x=614, y=853..862
-y=753, x=442..462
-y=927, x=443..477
-y=1394, x=513..525
-x=600, y=14..24
-y=1372, x=437..440
-y=1335, x=475..494
-x=493, y=31..41
-y=1413, x=598..602
-y=874, x=529..541
-y=1152, x=553..580
-x=439, y=1430..1440
-x=554, y=1204..1218
-x=490, y=563..588
-y=925, x=409..430
-x=477, y=1239..1252
-x=534, y=465..476
-y=138, x=578..581
-x=477, y=1260..1274
-x=468, y=41..65
-x=605, y=222..236
-x=509, y=628..634
-x=472, y=785..787
-x=485, y=462..466
-x=575, y=947..953
-x=574, y=560..575
-x=534, y=1077..1081
-x=554, y=860..887
-y=813, x=471..475
-y=1141, x=463..482
-y=1064, x=464..487
-x=519, y=29..42
-x=480, y=1465..1469
-x=522, y=1552..1580
-x=526, y=263..267
-x=454, y=666..670
-y=837, x=563..589
-y=987, x=614..617
-y=639, x=501..517
-x=420, y=1268..1295
-y=1580, x=503..522
-x=464, y=577..590
-x=578, y=472..484
-x=511, y=1276..1278
-y=863, x=470..486
-x=444, y=1297..1315
-y=1177, x=585..592
-x=440, y=183..189
-y=1507, x=456..466
-x=601, y=700..719
-x=494, y=733..736
-x=442, y=200..218
-x=491, y=181..193
-y=1502, x=548..552
-y=1218, x=554..557
-y=1218, x=579..605
-x=502, y=294..299
-y=523, x=502..517
-x=558, y=1069..1084
-y=495, x=422..424
-x=507, y=54..67
-x=435, y=119..125
-x=587, y=611..625
-y=301, x=562..588
-y=1465, x=422..424
-x=418, y=701..711
-y=352, x=594..615
-y=1278, x=506..511
-y=1254, x=537..540
-y=1571, x=417..444
-y=1028, x=485..487
-x=443, y=918..927
-x=559, y=1408..1419
-x=553, y=247..259
-x=433, y=1410..1422
-y=1499, x=528..540
-y=267, x=501..526
-x=544, y=329..340
-x=550, y=1077..1079
-x=610, y=229..241
-x=576, y=1360..1362
-y=394, x=516..531
-x=553, y=1138..1152
-x=458, y=956..967
-x=463, y=463..475
-x=456, y=999..1011
-x=455, y=239..253
-y=761, x=558..563
-y=147, x=546..556
-x=554, y=1332..1348
-x=494, y=1213..1222
-y=388, x=469..490
-y=584, x=511..517
-y=1204, x=470..476
-x=584, y=141..145
-x=426, y=999..1002
-x=502, y=505..523
-x=548, y=125..128
-y=1081, x=479..505
-y=165, x=582..599
-x=615, y=1261..1273
-y=218, x=472..485
-y=1285, x=500..521
-y=1628, x=547..567
-y=880, x=438..447
-x=498, y=761..767
-y=874, x=617..623
-x=593, y=793..806
-x=503, y=595..616
-x=540, y=1186..1201
-x=445, y=1481..1495
-y=1483, x=592..607
-x=589, y=1053..1059
-x=549, y=1123..1128
-x=415, y=1601..1610
-x=520, y=865..871
-x=486, y=918..940
-y=775, x=456..475
-x=565, y=1255..1257
-x=442, y=349..376
-y=304, x=439..456
-y=1395, x=453..456
-y=953, x=523..533
-x=487, y=1051..1064
-x=413, y=1043..1045
-x=585, y=1422..1438
-x=562, y=329..340
-y=1229, x=512..524
-x=608, y=250..264
-y=82, x=409..411
-x=466, y=996..1005
-y=82, x=572..584
-x=454, y=740..749
-x=470, y=460..470
-x=571, y=597..607
-x=442, y=742..753
-y=494, x=461..468
-x=453, y=1078..1080
-y=1084, x=543..558
-x=486, y=314..324
-x=420, y=637..648
-x=531, y=386..394
-x=486, y=809..831
-x=548, y=1495..1502
-y=324, x=466..486
-y=732, x=470..475
-y=147, x=408..430
-x=617, y=855..874
-x=604, y=1007..1010
-x=482, y=462..466
-y=1273, x=615..623
-y=518, x=416..427
-x=552, y=335..337
-x=580, y=1525..1532
-y=1295, x=497..510
-y=1093, x=412..418
-x=587, y=142..145
-x=469, y=875..880
-y=652, x=410..427
-y=380, x=562..579
-x=483, y=541..544
-x=537, y=207..210
-x=437, y=1365..1372
-y=1345, x=524..547
-x=426, y=934..947
-x=417, y=1196..1216
-x=505, y=1074..1081
-x=422, y=170..197
-y=1208, x=502..517
-x=611, y=1510..1521
-y=767, x=498..505
-x=567, y=8..29
-x=469, y=399..408
-x=416, y=510..518
-y=61, x=498..500
-x=619, y=815..821
-x=448, y=655..679
-x=567, y=757..779
-x=477, y=917..927
-y=672, x=594..614
-y=719, x=601..607
-x=586, y=1445..1462
-y=1103, x=458..480
-y=711, x=418..472
-x=455, y=1545..1558
-x=447, y=1254..1276
-y=340, x=544..562
-y=433, x=496..510
-x=440, y=1366..1372
-x=407, y=444..447
-y=1011, x=456..474
-x=575, y=1244..1261
-x=454, y=1195..1220
-x=517, y=506..523
-x=592, y=920..945
-x=449, y=826..840
-x=604, y=178..192
-x=619, y=1430..1456
-x=498, y=919..940
-x=563, y=755..761
-x=501, y=263..267
-x=509, y=1346..1358
-x=483, y=1347..1358
-x=451, y=806..809
-x=563, y=1102..1107
-x=460, y=643..651
-x=568, y=1544..1550
-x=413, y=872..875
-x=493, y=6..19
-x=478, y=417..428
-x=527, y=1046..1057
-x=576, y=1283..1290
-x=426, y=1273..1301
-x=474, y=998..1011
-y=1550, x=415..430
-y=1013, x=568..577
-x=541, y=864..874
-x=422, y=1542..1545
-y=67, x=491..507
-x=586, y=470..478
-y=1594, x=406..425
-x=459, y=119..125
-x=413, y=1601..1610
-y=478, x=586..590
-x=508, y=1231..1234
-x=600, y=1558..1574
-x=466, y=313..324
-x=559, y=1355..1365
-y=945, x=582..592
-x=582, y=159..165
-x=434, y=1518..1525
-x=578, y=114..138
-y=428, x=478..480
-x=536, y=999..1012
-x=528, y=1488..1499
-x=572, y=1360..1362
-x=416, y=838..865
-y=828, x=425..439
-y=1271, x=464..468
-x=476, y=870..884
-x=518, y=441..454
-x=603, y=83..85
-y=337, x=552..554
-x=478, y=1152..1163
-x=528, y=1268..1290
-x=476, y=786..787
-x=420, y=157..159
-y=1573, x=485..490
-x=580, y=1341..1343
-x=506, y=1300..1327
-x=470, y=726..732
-x=490, y=376..388
-x=464, y=656..679
-x=467, y=229..237
-y=516, x=509..511
-x=572, y=895..915
-x=525, y=1143..1164
-y=1589, x=556..581
-x=414, y=372..399
-x=530, y=1617..1626
-x=535, y=135..147
-y=1222, x=492..494
-x=561, y=927..932
-x=456, y=666..670
-y=68, x=449..453
-x=550, y=960..965
-x=463, y=1040..1043
-x=499, y=178..189
-y=1596, x=603..605
-x=555, y=981..1006
-y=1079, x=550..552
-x=472, y=207..218
-x=420, y=1027..1048
-y=563, x=449..461
-x=497, y=1294..1295
-y=1574, x=473..478
-x=478, y=483..497
-y=756, x=541..549
-y=762, x=519..530
-x=460, y=1195..1220
-x=608, y=559..561
-x=539, y=718..741
-x=469, y=1113..1123
-x=620, y=89..107
-x=447, y=1433..1446
-x=581, y=113..138
-y=831, x=486..493
-x=475, y=311..318
-x=465, y=291..304
-x=540, y=1239..1254
-x=423, y=843..849
-y=1508, x=529..531
-x=456, y=1078..1080
-x=571, y=926..932
-x=459, y=1261..1274
-x=472, y=331..345
-y=696, x=421..424
-y=980, x=426..435
-x=465, y=1070..1083
-x=452, y=740..749
-x=464, y=996..1005
-x=415, y=1500..1510
-y=603, x=600..619
-y=89, x=595..610
-x=456, y=763..775
-y=24, x=600..617
-y=1398, x=448..464
-x=511, y=566..584
-y=345, x=472..488
-y=236, x=486..565
-y=1451, x=416..422
-x=519, y=759..762
-x=494, y=953..968
-x=506, y=1231..1234
-x=513, y=1374..1394
-x=594, y=129..154
-x=423, y=659..668
-x=612, y=418..426
-y=1471, x=537..562
-y=942, x=616..625
-y=1245, x=482..484
-x=554, y=311..322
-y=1330, x=485..488
-y=1377, x=588..616
-y=128, x=548..568
-y=1621, x=497..507
-x=582, y=1526..1532
-x=581, y=179..192
-x=475, y=598..608
-y=736, x=494..496
-x=567, y=153..179
-y=1187, x=608..611
-y=52, x=588..613
-x=590, y=470..478
-x=449, y=1020..1023
-y=116, x=545..548
-x=511, y=1191..1197
-y=396, x=574..581
-x=412, y=1093..1096
-x=453, y=805..809
-x=502, y=1443..1451
-x=426, y=1115..1125
-x=471, y=1621..1623
-y=432, x=469..488
-y=1436, x=483..508
-y=127, x=535..540
-y=973, x=598..624
-x=464, y=805..816
-y=585, x=582..600
-x=480, y=1308..1318
-x=603, y=1590..1596
-x=544, y=1225..1231
-x=487, y=1165..1173
-x=437, y=1621..1631
-x=485, y=1559..1573
-x=466, y=1482..1507
-y=1042, x=610..617
-x=526, y=1241..1249
-x=428, y=59..83
-y=1315, x=444..456
-x=542, y=48..51
-x=466, y=875..880
-x=626, y=1071..1087
-y=1518, x=562..586
-y=193, x=491..508
-x=592, y=1456..1483
-y=1048, x=581..594
-x=452, y=1227..1235
-x=533, y=946..953
-y=1522, x=521..537
-y=1301, x=426..436
-y=278, x=616..625
-x=620, y=624..636
-x=574, y=247..259
-x=511, y=866..868
-x=524, y=769..794
-x=591, y=570..581
-y=1043, x=461..463
-x=421, y=135..140
-x=407, y=233..240
-y=38, x=419..444
-x=444, y=1559..1571
-x=605, y=1200..1218
-x=568, y=125..128
-x=570, y=412..415
-y=629, x=530..556
-y=1451, x=502..507
-y=1290, x=528..538
-y=243, x=446..449
-y=341, x=477..482
-y=958, x=578..583
-y=787, x=472..476
-x=452, y=1586..1608
-y=476, x=534..545
-x=505, y=762..767
-y=452, x=455..482
-y=1358, x=483..509
-x=552, y=1077..1079
-x=450, y=1330..1358
-x=614, y=984..987
-x=491, y=53..67
-y=189, x=440..450
-y=1249, x=511..526
-x=534, y=347..361
-x=606, y=1120..1124
-x=468, y=1149..1159
-x=523, y=945..953
-y=1626, x=530..544
-y=1201, x=537..540
-x=471, y=1305..1315
-x=441, y=462..475
-y=166, x=461..467
-x=560, y=1017..1023
-x=437, y=615..628
-y=493, x=422..424
-x=513, y=602..607
-y=1160, x=481..501
-y=1421, x=500..508
-y=887, x=554..567
-y=648, x=418..420
-x=592, y=389..402
-x=452, y=483..497
-y=821, x=619..626
-x=560, y=1245..1261
-x=404, y=233..240
-x=406, y=1580..1594
-x=526, y=971..980
-x=562, y=1499..1518
-x=509, y=78..90
-x=530, y=627..629
-x=438, y=876..880
-y=575, x=570..574
-y=104, x=502..504
-y=1038, x=541..551
-x=474, y=550..562
-x=600, y=573..585
-y=671, x=412..429
-x=422, y=493..495
-y=399, x=405..414
-x=463, y=1307..1318
-x=434, y=932..942
-x=484, y=292..304
-y=1320, x=424..432
-x=565, y=667..677
-x=598, y=1530..1538
-y=1123, x=449..469
-x=455, y=83..90
-x=430, y=488..498
-y=1531, x=423..442
-y=443, x=521..530
-y=1362, x=572..576
-y=830, x=579..582
-y=125, x=435..459
-x=587, y=756..779
-x=607, y=468..480
-y=237, x=467..476
-x=628, y=682..694
-x=486, y=851..863
-y=428, x=410..428
-x=541, y=754..756
-x=500, y=1397..1421
-y=1388, x=440..442
-x=481, y=355..368
-y=1540, x=562..577
-x=409, y=909..925
-x=416, y=1622..1631
-x=543, y=653..671
-x=422, y=1434..1451
-x=595, y=860..867
-x=537, y=1505..1522
-x=517, y=567..584
-y=733, x=580..587
-x=550, y=1018..1023
-x=619, y=554..564
-x=476, y=228..237
-x=566, y=390..402
-y=1623, x=466..471
-y=677, x=556..565
-y=985, x=410..422
-x=559, y=1478..1504
-y=817, x=564..587
-y=1032, x=474..493
-x=470, y=850..863
-x=493, y=808..831
-x=441, y=783..792
-x=573, y=1469..1491
-x=562, y=270..282
-x=625, y=457..462
-y=1023, x=444..449
-x=489, y=1369..1379
-y=1006, x=548..555
-x=456, y=1385..1395
-x=558, y=754..761
-x=531, y=654..671
-x=612, y=1529..1538
-y=1290, x=557..576
-y=771, x=612..625
-x=442, y=837..865
-y=1572, x=404..414
-x=408, y=1269..1295
-y=1261, x=560..575
-x=521, y=430..443
-y=671, x=531..543
-y=1012, x=519..536
-y=559, x=608..613
-x=552, y=569..590
-y=83, x=428..430
-y=651, x=433..460
-x=485, y=1016..1028
-x=484, y=552..566
-x=481, y=1159..1160
-x=424, y=1306..1320
-y=197, x=571..578
-x=549, y=914..918
-y=498, x=415..430
-x=470, y=827..840
-x=444, y=1020..1023
-y=1512, x=574..578
-x=600, y=637..648
-y=1081, x=513..534
-y=51, x=542..548
-y=145, x=584..587
-x=551, y=67..73
-x=568, y=494..505
-x=580, y=453..462
-x=486, y=362..364
-x=588, y=32..52
-x=522, y=866..871
-y=529, x=575..594
-x=623, y=391..402
-y=1307, x=615..623
-x=464, y=504..514
-x=488, y=419..432
-y=1433, x=498..502
-x=588, y=287..301
-x=579, y=410..420
-x=579, y=830..834
-x=545, y=103..116
-x=410, y=981..985
-x=464, y=894..907
-x=497, y=1606..1621
-y=442, x=566..592
-x=443, y=1069..1083
-y=56, x=533..557
-x=486, y=225..236
-y=1422, x=433..454
-y=85, x=600..603
-x=622, y=1429..1456
-x=461, y=546..563
-y=1582, x=563..572
-y=867, x=595..599
-y=1276, x=447..451
-y=880, x=466..469
-x=517, y=1183..1208
-x=507, y=1607..1621
-y=1159, x=468..472
-y=1456, x=619..622
-x=421, y=990..1007
-x=560, y=731..748
-x=597, y=1283..1287
-x=537, y=1452..1471
-x=616, y=1369..1377
-x=421, y=843..849
-x=585, y=418..426
-y=529, x=484..490
-x=417, y=1560..1571
-x=492, y=399..404
-y=942, x=432..434
-y=991, x=602..623
-x=577, y=731..748
-y=1626, x=423..427
-x=509, y=516..518
-x=425, y=811..828
-y=404, x=492..495
-x=609, y=784..798
-x=410, y=639..652
-x=449, y=545..563
-x=511, y=1242..1249
-x=421, y=444..447
-y=322, x=542..548
-x=492, y=1238..1252
-x=483, y=1579..1593
-x=508, y=1397..1421
-x=519, y=1000..1012
-x=435, y=615..628
-x=480, y=32..41
-x=601, y=1463..1470
-x=580, y=882..886
-x=594, y=341..352
-x=493, y=1019..1032
-y=788, x=404..411
-y=1450, x=468..489
-x=626, y=1480..1490
-y=862, x=608..614
-x=615, y=342..352
-x=468, y=1258..1271
-y=865, x=416..442
-x=599, y=57..64
-x=421, y=1386..1401
-y=1002, x=426..436
-x=418, y=1224..1232
-y=1415, x=413..428
-x=599, y=1041..1062
-x=468, y=1446..1450
-x=599, y=159..165
-x=479, y=1073..1081
-y=953, x=560..575
-x=542, y=301..322
-x=568, y=1004..1013
-y=217, x=447..449
-x=574, y=396..399
-x=578, y=951..958
-x=431, y=352..363
-x=589, y=825..837
-x=466, y=1219..1228
-y=779, x=567..587
-x=432, y=932..942
-x=503, y=1553..1580
-x=609, y=1007..1010
-x=600, y=83..85
-x=556, y=200..214
-x=566, y=431..442
-x=417, y=1583..1588
-x=589, y=1340..1343
-y=169, x=508..545
-x=507, y=656..668
-x=530, y=760..762
-y=64, x=599..615
-x=427, y=640..652
-x=496, y=997..1017
-x=445, y=785..795
-y=806, x=593..595
-x=549, y=1307..1329
-y=29, x=567..579
-x=540, y=1489..1499
-x=492, y=1213..1222
-x=606, y=452..462
-x=498, y=75..82
-x=443, y=617..631
-y=1626, x=460..480
-x=599, y=1463..1470
-y=377, x=568..570
-y=1057, x=517..527
-y=840, x=449..470
-y=1545, x=422..424
-x=410, y=250..257
-y=1588, x=537..545
-x=539, y=1408..1419
-x=502, y=1431..1433
-y=741, x=615..622
-y=1208, x=463..485
-y=694, x=465..628
-y=1438, x=585..612
-x=405, y=1083..1099
-y=1202, x=470..476
-y=41, x=480..493
-x=455, y=1228..1235
-y=670, x=454..456
-x=542, y=915..918
-y=218, x=432..442
-x=424, y=1331..1358
-y=447, x=407..421
-y=1495, x=423..445
-x=584, y=77..82
-x=464, y=1258..1271
-x=613, y=559..561
-x=484, y=121..124
-x=525, y=594..616
-x=405, y=371..399
-x=623, y=1262..1273
-y=1252, x=477..492
-y=408, x=449..469
-x=518, y=135..147
-y=735, x=462..481
-y=547, x=466..606
-x=419, y=171..197
-x=429, y=154..163
-x=477, y=329..341
-x=620, y=164..187
-x=506, y=1276..1278
-x=600, y=555..564
-x=436, y=1430..1440
-x=470, y=550..562
-x=506, y=628..634
-x=459, y=1017..1029
-x=406, y=895..904
-x=594, y=223..236
-x=501, y=1158..1160
-x=469, y=1036..1046
-y=291, x=421..429
-y=1045, x=411..413
-y=518, x=601..603
-x=482, y=1245..1247
-y=253, x=430..455
-y=516, x=557..559
-x=537, y=1238..1254
-y=1062, x=599..603
-y=1220, x=454..460
-x=498, y=56..61
-x=549, y=753..756
-x=543, y=1069..1084
-y=1608, x=428..452
-x=459, y=396..404
-y=1149, x=416..420
-x=475, y=762..775
-x=540, y=115..127
-x=562, y=1533..1540
-x=579, y=8..29
-y=1228, x=466..475
-x=538, y=1269..1290
-y=668, x=420..423
-x=505, y=294..299
-y=875, x=406..413
-x=576, y=292..297
-x=472, y=311..318
-x=604, y=1237..1260
-y=933, x=520..524
-y=404, x=457..459
-x=452, y=575..587
-x=556, y=627..629
-y=1550, x=545..568
-x=612, y=1421..1438
-x=573, y=1184..1195
-x=481, y=722..735
-y=1628, x=423..427
-x=431, y=1082..1099
-x=625, y=271..278
-y=1558, x=455..478
-y=1087, x=624..626
-x=415, y=488..498
-y=154, x=594..609
-x=587, y=789..817
-x=532, y=1166..1170
-x=544, y=1145..1151
-y=1100, x=467..469
-x=608, y=853..862
-x=463, y=1132..1141
-x=502, y=1182..1208
-y=147, x=518..535
-x=502, y=178..189
-y=1186, x=447..472
-x=597, y=473..484
-x=487, y=1016..1028
-x=424, y=681..696
-x=451, y=1253..1276
-x=565, y=1226..1231
-x=554, y=335..337
-y=1532, x=580..582
-x=592, y=432..442
-x=541, y=1035..1038
-x=498, y=1580..1593
-y=257, x=410..415
-y=915, x=572..581
-x=458, y=269..283
-x=626, y=814..821
-x=545, y=1573..1588
-x=429, y=278..291
-x=619, y=458..462
-y=634, x=506..509
-y=1046, x=452..469
-y=420, x=553..579
-x=614, y=660..672
-x=466, y=537..547
-y=303, x=494..512
-x=600, y=594..603
-x=423, y=1482..1495
-x=464, y=1052..1064
-x=595, y=69..89
-y=163, x=404..429
-x=625, y=924..942
-x=444, y=20..38
-y=214, x=499..556
-x=428, y=1411..1415
-x=535, y=115..127
-y=108, x=553..564
-y=918, x=542..549
-y=1077, x=550..552
-x=500, y=56..61
-x=438, y=83..90
-y=1128, x=528..549
-x=501, y=30..42
-y=1099, x=405..431
-x=491, y=77..90
-x=418, y=637..648
-x=592, y=1165..1177
-y=466, x=482..485
-x=572, y=1570..1582
-x=508, y=27..39
-x=504, y=312..320
-x=582, y=572..585
-y=1616, x=584..590
-x=487, y=121..124
-x=562, y=369..380
-x=450, y=183..189
-y=1365, x=559..584
-y=884, x=457..476
-x=453, y=48..68
-x=478, y=1545..1558
-x=482, y=442..452
-y=1440, x=436..439
-x=488, y=1321..1330
-x=580, y=1412..1422
-x=419, y=21..38
-y=761, x=432..436
-y=1097, x=467..469
-x=506, y=867..868
-x=548, y=48..51
-x=480, y=1090..1103
-y=1017, x=496..511
-x=541, y=971..980
-x=448, y=1387..1398
-x=411, y=59..82
-x=494, y=97..107
-y=1216, x=417..435
-y=907, x=464..491
-x=482, y=329..341
-x=624, y=229..241
-y=1419, x=539..559
-y=126, x=501..525
-y=607, x=513..516
-y=588, x=490..498
-x=493, y=362..364
-x=474, y=1018..1032
-x=612, y=611..625
-x=467, y=1097..1100
-y=101, x=471..475
-x=598, y=952..973
-y=124, x=484..487
-x=464, y=1388..1398
-x=570, y=560..575
-x=578, y=1512..1514
-y=1107, x=563..572
-x=405, y=1028..1048
-x=442, y=1384..1388
-x=423, y=1626..1628
-x=537, y=1573..1588
-x=480, y=848..860
-x=607, y=701..719
-x=431, y=1432..1446
-x=567, y=569..590
-x=450, y=1370..1379
-x=499, y=200..214
-x=529, y=1508..1512
-x=545, y=466..476
-x=577, y=1005..1013
-y=1463, x=599..601
-x=446, y=243..245
-x=420, y=783..792
-x=486, y=762..775
-x=601, y=148..151
-y=1348, x=554..556
-x=578, y=178..197
-y=1164, x=508..525
-y=383, x=478..481
-y=518, x=509..511
-y=368, x=481..501
-x=618, y=1481..1490
-x=591, y=1555..1572
-x=480, y=1613..1626
-x=475, y=1324..1335
-x=406, y=873..875
-x=481, y=806..816
-x=572, y=77..82
-y=1462, x=577..586
-x=497, y=1164..1173
-x=601, y=1120..1124
-x=516, y=1096..1109
-x=529, y=865..874
-x=563, y=598..607
-x=601, y=882..886
-y=1631, x=416..437
-y=343, x=409..437
-x=612, y=1344..1357
-x=427, y=510..518
-y=1274, x=459..477
-x=472, y=974..987
-x=508, y=180..193
-x=429, y=896..904
-y=871, x=520..522
-x=453, y=349..376
-x=420, y=1139..1149
-y=151, x=601..603
-x=407, y=526..550
-y=1504, x=555..559
-x=432, y=955..967
-x=602, y=980..991
-x=516, y=602..607
-x=544, y=1617..1626
-y=1343, x=580..589
-y=318, x=472..475
-x=455, y=1140..1165
-y=1007, x=421..444
-x=427, y=618..631
-y=189, x=499..502
-x=435, y=1195..1216
-x=510, y=419..433
-y=297, x=571..576
-x=453, y=1385..1395
-x=511, y=996..1017
-x=617, y=14..24
-x=414, y=1562..1572
-y=834, x=579..582
-x=524, y=1222..1229
-x=454, y=1409..1422
-x=436, y=999..1002
-x=520, y=917..933
-x=415, y=1457..1471
-x=475, y=1220..1228
-y=48, x=542..548
-x=620, y=785..798
-x=601, y=496..518
-y=1521, x=609..611
-x=537, y=839..840
-y=426, x=585..612
-y=1109, x=516..525
-x=611, y=1587..1599
-x=589, y=570..581
-x=615, y=58..64
-x=623, y=1279..1307
-y=631, x=427..443
-y=904, x=406..429
-x=577, y=348..361
-x=537, y=1307..1329
-y=840, x=537..550
-x=600, y=1344..1357
-x=427, y=1626..1628
-x=623, y=981..991
-x=565, y=225..236
-x=492, y=1284..1297
-y=82, x=498..501
-y=399, x=574..581
-x=491, y=893..907
-x=436, y=1274..1301
-x=513, y=1076..1081
diff --git a/2018/d17/ex2/ex2.py b/2018/d17/ex2/ex2.py
deleted file mode 100755
index 57630bc..0000000
--- a/2018/d17/ex2/ex2.py
+++ /dev/null
@@ -1,107 +0,0 @@
-#!/usr/bin/env python
-
-import enum
-import itertools
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-
-class Direction(enum.Enum):
-    DOWN = Point(0, 1)
-    LEFT = Point(-1, 0)
-    RIGHT = Point(1, 0)
-
-    def apply(self, p: Point) -> Point:
-        dx, dy = self.value
-        return Point(p.x + dx, p.y + dy)
-
-
-def solve(input: str) -> int:
-    def parse_range(input: str) -> range:
-        if ".." not in input:
-            input = input + ".." + input
-        start, end = map(int, input.split(".."))
-        return range(start, end + 1)
-
-    def parse_line(input: str) -> Iterator[Point]:
-        xs, ys = sorted(input.split(", "))
-        yield from map(
-            Point._make,
-            itertools.product(parse_range(xs[2:]), parse_range(ys[2:])),
-        )
-
-    def parse(input: list[str]) -> set[Point]:
-        return {p for line in input for p in parse_line(line)}
-
-    def flow(clay: set[Point], source: Point) -> set[Point]:
-        max_y = max(p.y for p in clay)
-
-        def helper(
-            source: Point,
-            water: set[Point],
-            settled: set[Point],
-            direction: Direction = Direction.DOWN,
-        ) -> bool:
-            # Clay is considered "settled"
-            if source in clay:
-                return True
-
-            # We've already seen this, return early
-            if source in water:
-                return source in settled
-
-            # Account for this new source
-            water.add(source)
-
-            below = Direction.DOWN.apply(source)
-            if below not in clay:
-                if below.y <= max_y:
-                    helper(below, water, settled)
-                if below not in settled:
-                    return False
-
-            left = Direction.LEFT.apply(source)
-            right = Direction.RIGHT.apply(source)
-            l_filled = helper(left, water, settled, Direction.LEFT)
-            r_filled = helper(right, water, settled, Direction.RIGHT)
-
-            if direction == Direction.DOWN and l_filled and r_filled:
-                settled.add(source)
-                while left in water:
-                    settled.add(left)
-                    left = Direction.LEFT.apply(left)
-                while right in water:
-                    settled.add(right)
-                    right = Direction.RIGHT.apply(right)
-                return True
-
-            return (direction == Direction.LEFT and l_filled) or (
-                direction == Direction.RIGHT and r_filled
-            )
-
-        assert source not in clay  # Sanity check
-        water: set[Point] = set()
-        settled: set[Point] = set()
-        helper(source, water, settled)
-        assert settled <= water  # Sanity check
-        return settled
-
-    clay = parse(input.splitlines())
-    sys.setrecursionlimit(5000)  # HACK
-    settled = flow(clay, Point(500, 0))
-    return len(settled)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d17/ex2/input b/2018/d17/ex2/input
deleted file mode 100644
index 623f657..0000000
--- a/2018/d17/ex2/input
+++ /dev/null
@@ -1,1470 +0,0 @@
-x=581, y=396..399
-y=1491, x=566..573
-y=1470, x=599..601
-y=980, x=526..541
-y=1173, x=487..497
-y=402, x=616..623
-y=361, x=534..577
-x=461, y=1151..1163
-x=530, y=431..443
-x=426, y=976..980
-y=794, x=520..524
-y=1574, x=600..604
-x=556, y=667..677
-x=482, y=1131..1141
-x=508, y=158..169
-x=472, y=1149..1159
-y=564, x=600..619
-x=590, y=1607..1616
-y=1401, x=421..437
-x=566, y=1187..1191
-x=616, y=392..402
-x=404, y=1561..1572
-y=886, x=580..601
-x=464, y=786..795
-y=1588, x=414..417
-x=568, y=1255..1257
-x=511, y=719..741
-x=580, y=716..733
-x=553, y=409..420
-x=430, y=133..147
-y=940, x=486..498
-y=748, x=560..577
-x=546, y=139..147
-x=470, y=1202..1204
-y=304, x=465..484
-x=610, y=68..89
-x=589, y=1139..1162
-x=409, y=60..82
-x=452, y=1037..1046
-x=575, y=516..529
-x=588, y=1370..1377
-y=843, x=421..423
-y=320, x=504..515
-x=501, y=1299..1327
-y=1010, x=604..609
-x=526, y=656..668
-y=385, x=478..481
-x=481, y=763..775
-x=410, y=418..428
-x=615, y=1279..1307
-x=464, y=553..566
-x=619, y=593..603
-x=556, y=450..477
-x=525, y=116..126
-x=538, y=955..963
-y=1127, x=592..616
-y=1229, x=485..503
-x=474, y=270..282
-y=1295, x=408..420
-y=1297, x=465..492
-x=550, y=500..519
-y=1148, x=572..574
-x=450, y=575..587
-y=590, x=552..567
-x=516, y=385..394
-x=594, y=1042..1048
-x=595, y=794..806
-x=418, y=1093..1096
-y=968, x=471..494
-x=623, y=856..874
-x=447, y=208..217
-x=444, y=578..590
-x=465, y=683..694
-x=566, y=1468..1491
-y=83, x=600..603
-x=416, y=1435..1451
-y=187, x=620..626
-y=932, x=561..571
-y=775, x=481..486
-y=1329, x=537..549
-x=511, y=98..107
-x=471, y=83..101
-x=553, y=80..108
-x=462, y=743..753
-x=485, y=8..22
-x=551, y=1034..1038
-y=1490, x=618..626
-y=408, x=479..502
-y=1083, x=443..465
-x=515, y=311..320
-x=609, y=1140..1162
-x=519, y=207..210
-x=483, y=1425..1436
-y=240, x=404..407
-x=450, y=974..987
-x=409, y=332..343
-x=498, y=1431..1433
-x=431, y=1458..1471
-x=576, y=1076..1099
-x=594, y=1586..1599
-x=613, y=90..107
-x=417, y=1500..1510
-y=1357, x=600..612
-y=1048, x=405..420
-x=475, y=84..101
-x=579, y=368..380
-y=236, x=594..605
-x=605, y=1590..1596
-x=577, y=1532..1540
-x=432, y=201..218
-y=56, x=498..500
-y=1590, x=603..605
-x=531, y=1508..1512
-x=437, y=333..343
-y=1431, x=498..502
-x=565, y=499..519
-x=404, y=153..163
-y=1099, x=576..586
-x=558, y=1185..1195
-y=477, x=556..565
-x=623, y=1552..1563
-x=430, y=59..83
-y=849, x=421..423
-y=987, x=450..472
-x=408, y=805..818
-x=593, y=250..264
-y=561, x=608..613
-x=584, y=1608..1616
-x=485, y=1321..1330
-x=616, y=1235..1242
-x=480, y=417..428
-x=435, y=976..980
-x=565, y=449..477
-x=428, y=1587..1608
-y=39, x=508..512
-y=967, x=432..458
-x=404, y=572..592
-x=579, y=1199..1218
-x=622, y=729..741
-y=322, x=554..600
-x=525, y=1373..1394
-y=480, x=607..616
-x=524, y=1340..1345
-y=581, x=589..591
-y=679, x=448..464
-y=809, x=451..453
-y=963, x=538..543
-y=1593, x=483..498
-x=457, y=396..404
-x=610, y=1019..1042
-x=496, y=419..433
-x=476, y=117..127
-x=437, y=1385..1401
-x=490, y=517..529
-x=581, y=1311..1332
-x=575, y=636..648
-y=292, x=571..576
-x=568, y=960..965
-y=1151, x=544..547
-x=616, y=469..480
-x=413, y=1412..1415
-x=511, y=516..518
-x=603, y=495..518
-y=210, x=519..537
-y=157, x=416..420
-y=795, x=445..464
-x=570, y=366..377
-y=1513, x=405..423
-x=434, y=268..283
-y=999, x=426..436
-y=592, x=404..421
-x=572, y=1102..1107
-y=599, x=606..609
-y=749, x=452..454
-y=376, x=442..453
-y=1125, x=419..426
-x=520, y=769..794
-x=501, y=624..639
-x=613, y=31..52
-x=432, y=749..761
-x=411, y=769..788
-x=550, y=838..840
-y=315, x=417..438
-y=1610, x=413..415
-y=454, x=502..518
-y=1162, x=589..609
-x=525, y=1097..1109
-y=402, x=566..592
-x=449, y=208..217
-y=107, x=494..511
-x=420, y=525..550
-x=430, y=238..253
-x=489, y=1445..1450
-x=557, y=1284..1290
-x=604, y=1559..1574
-x=502, y=395..408
-x=469, y=376..388
-x=458, y=40..65
-y=1120, x=601..606
-y=135, x=418..421
-y=22, x=485..501
-y=514, x=444..464
-x=517, y=624..639
-x=548, y=301..322
-x=501, y=1586..1589
-x=493, y=459..470
-x=421, y=681..696
-x=423, y=1502..1513
-x=615, y=625..636
-x=465, y=1284..1297
-x=501, y=9..22
-x=625, y=766..771
-y=1247, x=482..484
-x=503, y=1215..1229
-x=586, y=1077..1099
-y=1422, x=580..582
-x=592, y=1111..1127
-x=501, y=115..126
-y=1059, x=585..589
-y=868, x=506..511
-x=488, y=332..345
-x=496, y=732..736
-y=42, x=501..519
-y=245, x=446..449
-y=73, x=551..568
-x=415, y=1539..1550
-x=456, y=302..304
-x=545, y=158..169
-x=481, y=383..385
-y=1327, x=501..506
-x=439, y=1016..1029
-x=432, y=1518..1525
-x=430, y=1540..1550
-x=507, y=1442..1451
-y=628, x=435..437
-x=598, y=1399..1413
-x=617, y=1020..1042
-x=416, y=1138..1149
-y=1235, x=452..455
-y=1165, x=428..455
-x=609, y=128..154
-x=583, y=952..958
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-x=512, y=1223..1229
-x=478, y=848..860
-x=484, y=518..529
-x=421, y=278..291
-x=475, y=803..813
-y=860, x=478..480
-y=867, x=447..452
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-x=508, y=1143..1164
-x=461, y=162..166
-x=458, y=1091..1103
-x=485, y=1197..1208
-y=1040, x=461..463
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-x=617, y=984..987
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-y=947, x=426..443
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-x=563, y=1570..1582
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-x=577, y=541..544
-y=19, x=490..493
-x=517, y=1047..1057
-x=577, y=1446..1462
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-x=560, y=947..953
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-x=476, y=1202..1204
-x=466, y=1621..1623
-x=555, y=1478..1504
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-x=510, y=1293..1295
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-x=588, y=1312..1332
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-x=521, y=825..846
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-x=485, y=206..218
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-x=420, y=659..668
-x=455, y=442..452
-x=567, y=1602..1628
-x=502, y=95..104
-x=498, y=562..588
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-x=422, y=981..985
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-x=563, y=1187..1191
-x=574, y=1512..1514
-x=424, y=1542..1545
-y=1191, x=563..566
-x=609, y=591..599
-y=1007, x=604..609
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-x=606, y=537..547
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-x=573, y=964..986
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-x=547, y=1144..1151
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-x=504, y=95..104
-x=616, y=1110..1127
-x=524, y=918..933
-x=552, y=1496..1502
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-y=1599, x=594..611
-x=421, y=573..592
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-x=586, y=494..505
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-x=624, y=953..973
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-x=582, y=830..834
-x=461, y=1040..1043
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-x=440, y=1384..1388
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-x=521, y=1257..1285
-y=1163, x=461..478
-x=564, y=80..108
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-x=423, y=353..363
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-x=624, y=1072..1087
-x=447, y=877..880
-x=424, y=1455..1465
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-x=587, y=717..733
-x=463, y=1196..1208
-x=411, y=1043..1045
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-x=556, y=138..147
-x=429, y=661..671
-x=439, y=810..828
-x=508, y=1425..1436
-y=1469, x=467..480
-x=412, y=662..671
-y=965, x=550..568
-x=456, y=1298..1315
-x=562, y=287..301
-x=490, y=1558..1573
-x=512, y=288..303
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-x=429, y=598..608
-x=436, y=1223..1232
-y=590, x=444..464
-x=478, y=383..385
-x=417, y=313..315
-x=557, y=1205..1218
-x=467, y=162..166
-y=1231, x=544..565
-x=537, y=1187..1201
-x=586, y=1556..1572
-x=617, y=1001..1013
-x=432, y=1306..1320
-x=447, y=1172..1186
-x=461, y=488..494
-x=473, y=1572..1574
-x=575, y=963..986
-y=562, x=470..474
-x=557, y=31..56
-y=519, x=550..565
-y=636, x=615..620
-x=501, y=75..82
-x=416, y=157..159
-x=611, y=1184..1187
-x=571, y=177..197
-x=580, y=1137..1152
-x=571, y=292..297
-x=608, y=1183..1187
-x=469, y=1097..1100
-y=299, x=502..505
-x=581, y=1041..1048
-x=614, y=853..862
-y=753, x=442..462
-y=927, x=443..477
-y=1394, x=513..525
-x=600, y=14..24
-y=1372, x=437..440
-y=1335, x=475..494
-x=493, y=31..41
-y=1413, x=598..602
-y=874, x=529..541
-y=1152, x=553..580
-x=439, y=1430..1440
-x=554, y=1204..1218
-x=490, y=563..588
-y=925, x=409..430
-x=477, y=1239..1252
-x=534, y=465..476
-y=138, x=578..581
-x=477, y=1260..1274
-x=468, y=41..65
-x=605, y=222..236
-x=509, y=628..634
-x=472, y=785..787
-x=485, y=462..466
-x=575, y=947..953
-x=574, y=560..575
-x=534, y=1077..1081
-x=554, y=860..887
-y=813, x=471..475
-y=1141, x=463..482
-y=1064, x=464..487
-x=519, y=29..42
-x=480, y=1465..1469
-x=522, y=1552..1580
-x=526, y=263..267
-x=454, y=666..670
-y=837, x=563..589
-y=987, x=614..617
-y=639, x=501..517
-x=420, y=1268..1295
-y=1580, x=503..522
-x=464, y=577..590
-x=578, y=472..484
-x=511, y=1276..1278
-y=863, x=470..486
-x=444, y=1297..1315
-y=1177, x=585..592
-x=440, y=183..189
-y=1507, x=456..466
-x=601, y=700..719
-x=494, y=733..736
-x=442, y=200..218
-x=491, y=181..193
-y=1502, x=548..552
-y=1218, x=554..557
-y=1218, x=579..605
-x=502, y=294..299
-y=523, x=502..517
-x=558, y=1069..1084
-y=495, x=422..424
-x=507, y=54..67
-x=435, y=119..125
-x=587, y=611..625
-y=301, x=562..588
-y=1465, x=422..424
-x=418, y=701..711
-y=352, x=594..615
-y=1278, x=506..511
-y=1254, x=537..540
-y=1571, x=417..444
-y=1028, x=485..487
-x=443, y=918..927
-x=559, y=1408..1419
-x=553, y=247..259
-x=433, y=1410..1422
-y=1499, x=528..540
-y=267, x=501..526
-x=544, y=329..340
-x=550, y=1077..1079
-x=610, y=229..241
-x=576, y=1360..1362
-y=394, x=516..531
-x=553, y=1138..1152
-x=458, y=956..967
-x=463, y=463..475
-x=456, y=999..1011
-x=455, y=239..253
-y=761, x=558..563
-y=147, x=546..556
-x=554, y=1332..1348
-x=494, y=1213..1222
-y=388, x=469..490
-y=584, x=511..517
-y=1204, x=470..476
-x=584, y=141..145
-x=426, y=999..1002
-x=502, y=505..523
-x=548, y=125..128
-y=1081, x=479..505
-y=165, x=582..599
-x=615, y=1261..1273
-y=218, x=472..485
-y=1285, x=500..521
-y=1628, x=547..567
-y=880, x=438..447
-x=498, y=761..767
-y=874, x=617..623
-x=593, y=793..806
-x=503, y=595..616
-x=540, y=1186..1201
-x=445, y=1481..1495
-y=1483, x=592..607
-x=589, y=1053..1059
-x=549, y=1123..1128
-x=415, y=1601..1610
-x=520, y=865..871
-x=486, y=918..940
-y=775, x=456..475
-x=565, y=1255..1257
-x=442, y=349..376
-y=304, x=439..456
-y=1395, x=453..456
-y=953, x=523..533
-x=487, y=1051..1064
-x=413, y=1043..1045
-x=585, y=1422..1438
-x=562, y=329..340
-y=1229, x=512..524
-x=608, y=250..264
-y=82, x=409..411
-x=466, y=996..1005
-y=82, x=572..584
-x=454, y=740..749
-x=470, y=460..470
-x=571, y=597..607
-x=442, y=742..753
-y=494, x=461..468
-x=453, y=1078..1080
-y=1084, x=543..558
-x=486, y=314..324
-x=420, y=637..648
-x=531, y=386..394
-x=486, y=809..831
-x=548, y=1495..1502
-y=324, x=466..486
-y=732, x=470..475
-y=147, x=408..430
-x=617, y=855..874
-x=604, y=1007..1010
-x=482, y=462..466
-y=1273, x=615..623
-y=518, x=416..427
-x=552, y=335..337
-x=580, y=1525..1532
-y=1295, x=497..510
-y=1093, x=412..418
-x=587, y=142..145
-x=469, y=875..880
-y=652, x=410..427
-y=380, x=562..579
-x=483, y=541..544
-x=537, y=207..210
-x=437, y=1365..1372
-y=1345, x=524..547
-x=426, y=934..947
-x=417, y=1196..1216
-x=505, y=1074..1081
-x=422, y=170..197
-y=1208, x=502..517
-x=611, y=1510..1521
-y=767, x=498..505
-x=567, y=8..29
-x=469, y=399..408
-x=416, y=510..518
-y=61, x=498..500
-x=619, y=815..821
-x=448, y=655..679
-x=567, y=757..779
-x=477, y=917..927
-y=672, x=594..614
-y=719, x=601..607
-x=586, y=1445..1462
-y=1103, x=458..480
-y=711, x=418..472
-x=455, y=1545..1558
-x=447, y=1254..1276
-y=340, x=544..562
-y=433, x=496..510
-x=440, y=1366..1372
-x=407, y=444..447
-y=1011, x=456..474
-x=575, y=1244..1261
-x=454, y=1195..1220
-x=517, y=506..523
-x=592, y=920..945
-x=449, y=826..840
-x=604, y=178..192
-x=619, y=1430..1456
-x=498, y=919..940
-x=563, y=755..761
-x=501, y=263..267
-x=509, y=1346..1358
-x=483, y=1347..1358
-x=451, y=806..809
-x=563, y=1102..1107
-x=460, y=643..651
-x=568, y=1544..1550
-x=413, y=872..875
-x=493, y=6..19
-x=478, y=417..428
-x=527, y=1046..1057
-x=576, y=1283..1290
-x=426, y=1273..1301
-x=474, y=998..1011
-y=1550, x=415..430
-y=1013, x=568..577
-x=541, y=864..874
-x=422, y=1542..1545
-y=67, x=491..507
-x=586, y=470..478
-y=1594, x=406..425
-x=459, y=119..125
-x=413, y=1601..1610
-y=478, x=586..590
-x=508, y=1231..1234
-x=600, y=1558..1574
-x=466, y=313..324
-x=559, y=1355..1365
-y=945, x=582..592
-x=582, y=159..165
-x=434, y=1518..1525
-x=578, y=114..138
-y=428, x=478..480
-x=536, y=999..1012
-x=528, y=1488..1499
-x=572, y=1360..1362
-x=416, y=838..865
-y=828, x=425..439
-y=1271, x=464..468
-x=476, y=870..884
-x=518, y=441..454
-x=603, y=83..85
-y=337, x=552..554
-x=478, y=1152..1163
-x=528, y=1268..1290
-x=476, y=786..787
-x=420, y=157..159
-y=1573, x=485..490
-x=580, y=1341..1343
-x=506, y=1300..1327
-x=470, y=726..732
-x=490, y=376..388
-x=464, y=656..679
-x=467, y=229..237
-y=516, x=509..511
-x=572, y=895..915
-x=525, y=1143..1164
-y=1589, x=556..581
-x=414, y=372..399
-x=530, y=1617..1626
-x=535, y=135..147
-y=1222, x=492..494
-x=561, y=927..932
-x=456, y=666..670
-y=68, x=449..453
-x=550, y=960..965
-x=463, y=1040..1043
-x=499, y=178..189
-y=1596, x=603..605
-x=555, y=981..1006
-y=1079, x=550..552
-x=472, y=207..218
-x=420, y=1027..1048
-y=563, x=449..461
-x=497, y=1294..1295
-y=1574, x=473..478
-x=478, y=483..497
-y=756, x=541..549
-y=762, x=519..530
-x=460, y=1195..1220
-x=608, y=559..561
-x=539, y=718..741
-x=469, y=1113..1123
-x=620, y=89..107
-x=447, y=1433..1446
-x=581, y=113..138
-y=831, x=486..493
-x=475, y=311..318
-x=465, y=291..304
-x=540, y=1239..1254
-x=423, y=843..849
-y=1508, x=529..531
-x=456, y=1078..1080
-x=571, y=926..932
-x=459, y=1261..1274
-x=472, y=331..345
-y=696, x=421..424
-y=980, x=426..435
-x=465, y=1070..1083
-x=452, y=740..749
-x=464, y=996..1005
-x=415, y=1500..1510
-y=603, x=600..619
-y=89, x=595..610
-x=456, y=763..775
-y=24, x=600..617
-y=1398, x=448..464
-x=511, y=566..584
-y=345, x=472..488
-y=236, x=486..565
-y=1451, x=416..422
-x=519, y=759..762
-x=494, y=953..968
-x=506, y=1231..1234
-x=513, y=1374..1394
-x=594, y=129..154
-x=423, y=659..668
-x=612, y=418..426
-y=1471, x=537..562
-y=942, x=616..625
-y=1245, x=482..484
-x=554, y=311..322
-y=1330, x=485..488
-y=1377, x=588..616
-y=128, x=548..568
-y=1621, x=497..507
-x=582, y=1526..1532
-x=581, y=179..192
-x=475, y=598..608
-y=736, x=494..496
-x=567, y=153..179
-y=1187, x=608..611
-y=52, x=588..613
-x=590, y=470..478
-x=449, y=1020..1023
-y=116, x=545..548
-x=511, y=1191..1197
-y=396, x=574..581
-x=412, y=1093..1096
-x=453, y=805..809
-x=502, y=1443..1451
-x=426, y=1115..1125
-x=471, y=1621..1623
-y=432, x=469..488
-y=1436, x=483..508
-y=127, x=535..540
-y=973, x=598..624
-x=464, y=805..816
-y=585, x=582..600
-x=480, y=1308..1318
-x=603, y=1590..1596
-x=544, y=1225..1231
-x=487, y=1165..1173
-x=437, y=1621..1631
-x=485, y=1559..1573
-x=466, y=1482..1507
-y=1042, x=610..617
-x=526, y=1241..1249
-x=428, y=59..83
-y=1315, x=444..456
-x=542, y=48..51
-x=466, y=875..880
-x=626, y=1071..1087
-y=1518, x=562..586
-y=193, x=491..508
-x=592, y=1456..1483
-y=1048, x=581..594
-x=452, y=1227..1235
-x=533, y=946..953
-y=1522, x=521..537
-y=1301, x=426..436
-y=278, x=616..625
-x=620, y=624..636
-x=574, y=247..259
-x=511, y=866..868
-x=524, y=769..794
-x=591, y=570..581
-y=1043, x=461..463
-x=421, y=135..140
-x=407, y=233..240
-y=38, x=419..444
-x=444, y=1559..1571
-x=605, y=1200..1218
-x=568, y=125..128
-x=570, y=412..415
-y=629, x=530..556
-y=1451, x=502..507
-y=1290, x=528..538
-y=243, x=446..449
-y=341, x=477..482
-y=958, x=578..583
-y=787, x=472..476
-x=452, y=1586..1608
-y=476, x=534..545
-x=505, y=762..767
-y=452, x=455..482
-y=1358, x=483..509
-x=552, y=1077..1079
-x=450, y=1330..1358
-x=614, y=984..987
-x=491, y=53..67
-y=189, x=440..450
-y=1249, x=511..526
-x=534, y=347..361
-x=606, y=1120..1124
-x=468, y=1149..1159
-x=523, y=945..953
-y=1626, x=530..544
-y=1201, x=537..540
-x=471, y=1305..1315
-x=441, y=462..475
-y=166, x=461..467
-x=560, y=1017..1023
-x=437, y=615..628
-y=493, x=422..424
-x=513, y=602..607
-y=1160, x=481..501
-y=1421, x=500..508
-y=887, x=554..567
-y=648, x=418..420
-x=592, y=389..402
-x=452, y=483..497
-y=821, x=619..626
-x=560, y=1245..1261
-x=404, y=233..240
-x=406, y=1580..1594
-x=526, y=971..980
-x=562, y=1499..1518
-x=509, y=78..90
-x=530, y=627..629
-x=438, y=876..880
-y=575, x=570..574
-y=104, x=502..504
-y=1038, x=541..551
-x=474, y=550..562
-x=600, y=573..585
-y=671, x=412..429
-x=422, y=493..495
-y=399, x=405..414
-x=463, y=1307..1318
-x=434, y=932..942
-x=484, y=292..304
-y=1320, x=424..432
-x=565, y=667..677
-x=598, y=1530..1538
-y=1123, x=449..469
-x=455, y=83..90
-x=430, y=488..498
-y=1531, x=423..442
-y=443, x=521..530
-y=1362, x=572..576
-y=830, x=579..582
-y=125, x=435..459
-x=587, y=756..779
-x=607, y=468..480
-y=237, x=467..476
-x=628, y=682..694
-x=486, y=851..863
-y=428, x=410..428
-x=541, y=754..756
-x=500, y=1397..1421
-y=1388, x=440..442
-x=481, y=355..368
-y=1540, x=562..577
-x=409, y=909..925
-x=416, y=1622..1631
-x=543, y=653..671
-x=422, y=1434..1451
-x=595, y=860..867
-x=537, y=1505..1522
-x=517, y=567..584
-y=733, x=580..587
-x=550, y=1018..1023
-x=619, y=554..564
-x=476, y=228..237
-x=566, y=390..402
-y=1623, x=466..471
-y=677, x=556..565
-y=985, x=410..422
-x=559, y=1478..1504
-y=817, x=564..587
-y=1032, x=474..493
-x=470, y=850..863
-x=493, y=808..831
-x=441, y=783..792
-x=573, y=1469..1491
-x=562, y=270..282
-x=625, y=457..462
-y=1023, x=444..449
-x=489, y=1369..1379
-y=1006, x=548..555
-x=456, y=1385..1395
-x=558, y=754..761
-x=531, y=654..671
-x=612, y=1529..1538
-y=1290, x=557..576
-y=771, x=612..625
-x=442, y=837..865
-y=1572, x=404..414
-x=408, y=1269..1295
-y=1261, x=560..575
-x=521, y=430..443
-y=671, x=531..543
-y=1012, x=519..536
-y=559, x=608..613
-x=552, y=569..590
-y=83, x=428..430
-y=651, x=433..460
-x=485, y=1016..1028
-x=484, y=552..566
-x=481, y=1159..1160
-x=424, y=1306..1320
-y=197, x=571..578
-x=549, y=914..918
-y=498, x=415..430
-x=470, y=827..840
-x=444, y=1020..1023
-y=1512, x=574..578
-x=600, y=637..648
-y=1081, x=513..534
-y=51, x=542..548
-y=145, x=584..587
-x=551, y=67..73
-x=568, y=494..505
-x=580, y=453..462
-x=486, y=362..364
-x=588, y=32..52
-x=522, y=866..871
-y=529, x=575..594
-x=623, y=391..402
-y=1307, x=615..623
-x=464, y=504..514
-x=488, y=419..432
-y=1433, x=498..502
-x=588, y=287..301
-x=579, y=410..420
-x=579, y=830..834
-x=545, y=103..116
-x=410, y=981..985
-x=464, y=894..907
-x=497, y=1606..1621
-y=442, x=566..592
-x=443, y=1069..1083
-y=56, x=533..557
-x=486, y=225..236
-y=1422, x=433..454
-y=85, x=600..603
-x=622, y=1429..1456
-x=461, y=546..563
-y=1582, x=563..572
-y=867, x=595..599
-y=1276, x=447..451
-y=880, x=466..469
-x=517, y=1183..1208
-x=507, y=1607..1621
-y=1159, x=468..472
-y=1456, x=619..622
-x=421, y=990..1007
-x=560, y=731..748
-x=597, y=1283..1287
-x=537, y=1452..1471
-x=616, y=1369..1377
-x=421, y=843..849
-x=585, y=418..426
-y=529, x=484..490
-x=417, y=1560..1571
-x=492, y=399..404
-y=942, x=432..434
-y=991, x=602..623
-x=577, y=731..748
-y=1626, x=423..427
-x=509, y=516..518
-x=425, y=811..828
-y=404, x=492..495
-x=609, y=784..798
-x=410, y=639..652
-x=449, y=545..563
-x=511, y=1242..1249
-x=421, y=444..447
-y=322, x=542..548
-x=492, y=1238..1252
-x=483, y=1579..1593
-x=508, y=1397..1421
-x=519, y=1000..1012
-x=435, y=615..628
-x=480, y=32..41
-x=601, y=1463..1470
-x=580, y=882..886
-x=594, y=341..352
-x=493, y=1019..1032
-y=788, x=404..411
-y=1450, x=468..489
-x=626, y=1480..1490
-y=862, x=608..614
-x=615, y=342..352
-x=468, y=1258..1271
-y=865, x=416..442
-x=599, y=57..64
-x=421, y=1386..1401
-y=1002, x=426..436
-x=418, y=1224..1232
-y=1415, x=413..428
-x=599, y=1041..1062
-x=468, y=1446..1450
-x=599, y=159..165
-x=479, y=1073..1081
-y=953, x=560..575
-x=542, y=301..322
-x=568, y=1004..1013
-y=217, x=447..449
-x=574, y=396..399
-x=578, y=951..958
-x=431, y=352..363
-x=589, y=825..837
-x=466, y=1219..1228
-y=779, x=567..587
-x=432, y=932..942
-x=503, y=1553..1580
-x=609, y=1007..1010
-x=600, y=83..85
-x=556, y=200..214
-x=566, y=431..442
-x=417, y=1583..1588
-x=589, y=1340..1343
-y=169, x=508..545
-x=507, y=656..668
-x=530, y=760..762
-y=64, x=599..615
-x=427, y=640..652
-x=496, y=997..1017
-x=445, y=785..795
-y=806, x=593..595
-x=549, y=1307..1329
-y=29, x=567..579
-x=540, y=1489..1499
-x=492, y=1213..1222
-x=606, y=452..462
-x=498, y=75..82
-x=443, y=617..631
-y=1626, x=460..480
-x=599, y=1463..1470
-y=377, x=568..570
-y=1057, x=517..527
-y=840, x=449..470
-y=1545, x=422..424
-x=410, y=250..257
-y=1588, x=537..545
-x=539, y=1408..1419
-x=502, y=1431..1433
-y=741, x=615..622
-y=1208, x=463..485
-y=694, x=465..628
-y=1438, x=585..612
-x=405, y=1083..1099
-y=1202, x=470..476
-y=41, x=480..493
-x=455, y=1228..1235
-y=670, x=454..456
-x=542, y=915..918
-y=218, x=432..442
-x=424, y=1331..1358
-y=447, x=407..421
-y=1495, x=423..445
-x=584, y=77..82
-x=464, y=1258..1271
-x=613, y=559..561
-x=484, y=121..124
-x=525, y=594..616
-x=405, y=371..399
-x=623, y=1262..1273
-y=1252, x=477..492
-y=408, x=449..469
-x=518, y=135..147
-y=735, x=462..481
-y=547, x=466..606
-x=419, y=171..197
-x=429, y=154..163
-x=477, y=329..341
-x=620, y=164..187
-x=506, y=1276..1278
-x=600, y=555..564
-x=436, y=1430..1440
-x=470, y=550..562
-x=506, y=628..634
-x=459, y=1017..1029
-x=406, y=895..904
-x=594, y=223..236
-x=501, y=1158..1160
-x=469, y=1036..1046
-y=291, x=421..429
-y=1045, x=411..413
-y=518, x=601..603
-x=482, y=1245..1247
-y=253, x=430..455
-y=516, x=557..559
-x=537, y=1238..1254
-y=1062, x=599..603
-y=1220, x=454..460
-x=498, y=56..61
-x=549, y=753..756
-x=543, y=1069..1084
-y=1608, x=428..452
-x=459, y=396..404
-y=1149, x=416..420
-x=475, y=762..775
-x=540, y=115..127
-x=562, y=1533..1540
-x=579, y=8..29
-y=1228, x=466..475
-x=538, y=1269..1290
-y=668, x=420..423
-x=505, y=294..299
-y=875, x=406..413
-x=576, y=292..297
-x=472, y=311..318
-x=604, y=1237..1260
-y=933, x=520..524
-y=404, x=457..459
-x=452, y=575..587
-x=556, y=627..629
-y=1550, x=545..568
-x=612, y=1421..1438
-x=573, y=1184..1195
-x=481, y=722..735
-y=1628, x=423..427
-x=431, y=1082..1099
-x=625, y=271..278
-y=1558, x=455..478
-y=1087, x=624..626
-x=415, y=488..498
-y=154, x=594..609
-x=587, y=789..817
-x=532, y=1166..1170
-x=544, y=1145..1151
-y=1100, x=467..469
-x=608, y=853..862
-x=463, y=1132..1141
-x=502, y=1182..1208
-y=147, x=518..535
-x=502, y=178..189
-y=1186, x=447..472
-x=597, y=473..484
-x=487, y=1016..1028
-x=424, y=681..696
-x=451, y=1253..1276
-x=565, y=1226..1231
-x=554, y=335..337
-y=1532, x=580..582
-x=592, y=432..442
-x=541, y=1035..1038
-x=498, y=1580..1593
-y=257, x=410..415
-y=915, x=572..581
-x=458, y=269..283
-x=626, y=814..821
-x=545, y=1573..1588
-x=429, y=278..291
-x=619, y=458..462
-y=634, x=506..509
-y=1046, x=452..469
-y=420, x=553..579
-x=614, y=660..672
-x=466, y=537..547
-y=303, x=494..512
-x=600, y=594..603
-x=423, y=1482..1495
-x=464, y=1052..1064
-x=595, y=69..89
-y=163, x=404..429
-x=625, y=924..942
-x=444, y=20..38
-y=214, x=499..556
-x=428, y=1411..1415
-x=535, y=115..127
-y=108, x=553..564
-y=918, x=542..549
-y=1077, x=550..552
-x=500, y=56..61
-x=438, y=83..90
-y=1128, x=528..549
-x=501, y=30..42
-y=1099, x=405..431
-x=491, y=77..90
-x=418, y=637..648
-x=592, y=1165..1177
-y=466, x=482..485
-x=572, y=1570..1582
-x=508, y=27..39
-x=504, y=312..320
-x=582, y=572..585
-y=1616, x=584..590
-x=487, y=121..124
-x=562, y=369..380
-x=450, y=183..189
-y=1365, x=559..584
-y=884, x=457..476
-x=453, y=48..68
-x=478, y=1545..1558
-x=482, y=442..452
-y=1440, x=436..439
-x=488, y=1321..1330
-x=580, y=1412..1422
-x=419, y=21..38
-y=761, x=432..436
-y=1097, x=467..469
-x=506, y=867..868
-x=548, y=48..51
-x=480, y=1090..1103
-y=1017, x=496..511
-x=541, y=971..980
-x=448, y=1387..1398
-x=411, y=59..82
-x=494, y=97..107
-y=1216, x=417..435
-y=907, x=464..491
-x=482, y=329..341
-x=624, y=229..241
-y=1419, x=539..559
-y=126, x=501..525
-y=607, x=513..516
-y=588, x=490..498
-x=493, y=362..364
-x=474, y=1018..1032
-x=612, y=611..625
-x=467, y=1097..1100
-y=101, x=471..475
-x=598, y=952..973
-y=124, x=484..487
-x=464, y=1388..1398
-x=570, y=560..575
-x=578, y=1512..1514
-y=1107, x=563..572
-x=405, y=1028..1048
-x=442, y=1384..1388
-x=423, y=1626..1628
-x=537, y=1573..1588
-x=480, y=848..860
-x=607, y=701..719
-x=431, y=1432..1446
-x=567, y=569..590
-x=450, y=1370..1379
-x=499, y=200..214
-x=529, y=1508..1512
-x=545, y=466..476
-x=577, y=1005..1013
-y=1463, x=599..601
-x=446, y=243..245
-x=420, y=783..792
-x=486, y=762..775
-x=601, y=148..151
-y=1348, x=554..556
-x=578, y=178..197
-y=1164, x=508..525
-y=383, x=478..481
-y=518, x=509..511
-y=368, x=481..501
-x=618, y=1481..1490
-x=591, y=1555..1572
-x=480, y=1613..1626
-x=475, y=1324..1335
-x=406, y=873..875
-x=481, y=806..816
-x=572, y=77..82
-y=1462, x=577..586
-x=497, y=1164..1173
-x=601, y=1120..1124
-x=516, y=1096..1109
-x=529, y=865..874
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-x=601, y=882..886
-y=1631, x=416..437
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-x=612, y=1344..1357
-x=427, y=510..518
-y=1274, x=459..477
-x=472, y=974..987
-x=508, y=180..193
-x=429, y=896..904
-y=871, x=520..522
-x=453, y=349..376
-x=420, y=1139..1149
-y=151, x=601..603
-x=407, y=526..550
-y=1504, x=555..559
-x=432, y=955..967
-x=602, y=980..991
-x=516, y=602..607
-x=544, y=1617..1626
-y=1343, x=580..589
-y=318, x=472..475
-x=455, y=1140..1165
-y=1007, x=421..444
-x=427, y=618..631
-y=189, x=499..502
-x=435, y=1195..1216
-x=510, y=419..433
-y=297, x=571..576
-x=453, y=1385..1395
-x=511, y=996..1017
-x=617, y=14..24
-x=414, y=1562..1572
-y=834, x=579..582
-x=524, y=1222..1229
-x=454, y=1409..1422
-x=436, y=999..1002
-x=520, y=917..933
-x=415, y=1457..1471
-x=475, y=1220..1228
-y=48, x=542..548
-x=620, y=785..798
-x=601, y=496..518
-y=1521, x=609..611
-x=537, y=839..840
-y=426, x=585..612
-y=1109, x=516..525
-x=611, y=1587..1599
-x=589, y=570..581
-x=615, y=58..64
-x=623, y=1279..1307
-y=631, x=427..443
-y=904, x=406..429
-x=577, y=348..361
-x=537, y=1307..1329
-y=840, x=537..550
-x=600, y=1344..1357
-x=427, y=1626..1628
-x=623, y=981..991
-x=565, y=225..236
-x=492, y=1284..1297
-y=82, x=498..501
-y=399, x=574..581
-x=491, y=893..907
-x=436, y=1274..1301
-x=513, y=1076..1081
diff --git a/2018/d18/ex1/ex1.py b/2018/d18/ex1/ex1.py
deleted file mode 100755
index 8e6b249..0000000
--- a/2018/d18/ex1/ex1.py
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/usr/bin/env python
-
-import enum
-import itertools
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-    def neighbours(self) -> Iterator["Point"]:
-        for dx, dy in itertools.product(range(-1, 1 + 1), repeat=2):
-            if dx == 0 and dy == 0:
-                continue
-            yield Point(self.x + dx, self.y + dy)
-
-
-class Cell(enum.StrEnum):
-    OPEN = "."
-    TREE = "|"
-    LUMBERYARD = "#"
-
-
-def solve(input: str) -> int:
-    def parse(input: list[str]) -> dict[Point, Cell]:
-        return {
-            Point(x, y): Cell(c)
-            for x, line in enumerate(input)
-            for y, c in enumerate(line)
-        }
-
-    def step_cell(p: Point, grid: dict[Point, Cell]) -> Cell:
-        neighbours = (n for n in p.neighbours() if n in grid)
-        if grid[p] == Cell.OPEN:
-            trees = sum(grid[n] == Cell.TREE for n in neighbours)
-            return Cell.TREE if trees >= 3 else Cell.OPEN
-        if grid[p] == Cell.TREE:
-            lumberyards = sum(grid[n] == Cell.LUMBERYARD for n in neighbours)
-            return Cell.LUMBERYARD if lumberyards >= 3 else Cell.TREE
-        if grid[p] == Cell.LUMBERYARD:
-            continues = {Cell.TREE, Cell.LUMBERYARD} <= {grid[n] for n in neighbours}
-            return Cell.LUMBERYARD if continues else Cell.OPEN
-        assert False  # Sanity check
-
-    def step(grid: dict[Point, Cell]) -> dict[Point, Cell]:
-        res: dict[Point, Cell] = {}
-        for p in map(Point._make, itertools.product(range(50), repeat=2)):
-            res[p] = step_cell(p, grid)
-        return res
-
-    grid = parse(input.splitlines())
-    for _ in range(10):
-        grid = step(grid)
-    trees = sum(c == Cell.TREE for c in grid.values())
-    lumberyards = sum(c == Cell.LUMBERYARD for c in grid.values())
-    return trees * lumberyards
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d18/ex1/input b/2018/d18/ex1/input
deleted file mode 100644
index 98cad1f..0000000
--- a/2018/d18/ex1/input
+++ /dev/null
@@ -1,50 +0,0 @@
-.#|#.##....#|....|.#.#.|||.#.|....||....|...|..#..
-..|#||.|#..|...|#|..#...|#...#..#..|.....||..#.|#.
-#|||#..||.....||.#................|..#.##|.#...#.|
-|#..#.|...##...#..#|#|#..|#.#...|....#..#...##....
-.###.........|.||#...#|.|#.||||#..|...||....#..#..
-###.|..|#|...|..||..##.....|..#.|.#.............|.
-..|.|.||.#....|...|....#|.........##||..#||..|.##.
-#||#|...#|..|.|.||#...#|...|#.......|...#.....|...
-....||.....|.|.....#...|.......|...|..|...|......|
-#......#..#|#|..|....#.|.|.#...#.#.|..#.|.....#.#.
-.|#...|...........#|.#....#.#...#.|..|...|....|.|.
-..||.#.|...||#|....#.#..||#..#...#|..#..|..#|.....
-|..|.|..#...|.....#.|..|#.||..#|.|.||#|#..|#...##|
-..|..|#......||##..|........#.|...#.|.|#.#...||..#
-#.|...#.||#..|.|..|..|.#....|.||....|.|....#....#.
-#||.|.#..#..|...#....##|#..#...#.#...|.#...#.....#
-#.|.##.|##..#.##|##........#.|...#...|..#|.#|#|...
-.|#|....|.#...#..|||.#.||..#||.||.|..#.|....|..##.
-|.#.||#|.##.|.||.....#...#.#..###|.#......||#|....
-.|.#..|#||......|##..##.#|..#|.|#.|.|#......|#.|#.
-#..|........|||..|###..|#..|||#.|.|.....#|..|...|#
-..####||#......|#||..###.|...|....#..|.#|.||....||
-|##.......|||..........|..||.#.|#.......##...|...|
-|.......#......####|#|....#....|......#.|#.###...#
-#|.#.|||...|..|.....#....|...|......|#|#|......||.
-...#.|......#..||||.#|.....|.|.|||.|.|.|#|.#...#.#
-#.#.##.|.#|.|...|...|...#|...#.|#..|..##.|....#..|
-|...#.......#....#....#.#....#.#|.|#||.|.|.|#...#.
-#..|.||..|.#..|.#.....#|##.|.|....|....||.......|.
-..||.#..|#|.###....#.#|..#|.#..........#...|...#|.
-|#||.|.#..|....|....#.#||#.|......#..|#.#.|||||#|.
-.|#.|#.##.....#.|.#.....|....|.#..#.#..|#.#.....|.
-#.||.#.......|..|......|#||.|..#....#...|...|...|.
-|.....#.|.....#||.....##...#.#...||.|..#........|.
-||#..|.##.#...........#..|..|.|..#....|...#..||.#.
-..||.##.##.|.||......#...|.#.#.#..#.#...##.#.|.#..
-.|.#......#|#||.|.#|......||.#.|.|..|....#...||...
-....|.##.....|#|####.#..#..#|.....|.#.#|......|...
-...#..|......#....|#.#...|...|.#.#.......#.#.##..#
-.|||#.||||...|..|#||.|.#|#||..|..#..|..|..#||.....
-.....|..#..|#|.||.#||.||......|||..|..#|.|##......
-.#...#|..#..|||..||.|..|.#.#.......||..|...|.|....
-.##.||..|..||.|.......#.|||.|.|..|.#.#..|.||.|#|||
-.|..##|..#.#|#|....|.#.#.#|#.#|.##|........###...#
-..#..|#|...#.........#.#.####..#.#..#..#||#|...#|#
-#.|...|.......|.#.#..#.|#..#|#|..#..|.....|..|...|
-.##.|..#.....|...#..|#..|.|.#..##.#.|..#.|..|.##..
-....|..|.|..||....|...|.....#..|.|.....|.#|......#
-...##.|#..#..|.#|.##....|.#...||#|.....#...##.#|..
-.|....##.....||...#.#.....#|#...#...#|.|..#.#.#.##
diff --git a/2018/d18/ex2/ex2.py b/2018/d18/ex2/ex2.py
deleted file mode 100755
index face0c0..0000000
--- a/2018/d18/ex2/ex2.py
+++ /dev/null
@@ -1,90 +0,0 @@
-#!/usr/bin/env python
-
-import enum
-import itertools
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-    def neighbours(self) -> Iterator["Point"]:
-        for dx, dy in itertools.product(range(-1, 1 + 1), repeat=2):
-            if dx == 0 and dy == 0:
-                continue
-            yield Point(self.x + dx, self.y + dy)
-
-
-class Cell(enum.StrEnum):
-    OPEN = "."
-    TREE = "|"
-    LUMBERYARD = "#"
-
-
-def solve(input: str) -> int:
-    def parse(input: list[str]) -> dict[Point, Cell]:
-        return {
-            Point(x, y): Cell(c)
-            for x, line in enumerate(input)
-            for y, c in enumerate(line)
-        }
-
-    def step_cell(p: Point, grid: dict[Point, Cell]) -> Cell:
-        neighbours = (n for n in p.neighbours() if n in grid)
-        if grid[p] == Cell.OPEN:
-            trees = sum(grid[n] == Cell.TREE for n in neighbours)
-            return Cell.TREE if trees >= 3 else Cell.OPEN
-        if grid[p] == Cell.TREE:
-            lumberyards = sum(grid[n] == Cell.LUMBERYARD for n in neighbours)
-            return Cell.LUMBERYARD if lumberyards >= 3 else Cell.TREE
-        if grid[p] == Cell.LUMBERYARD:
-            continues = {Cell.TREE, Cell.LUMBERYARD} <= {grid[n] for n in neighbours}
-            return Cell.LUMBERYARD if continues else Cell.OPEN
-        assert False  # Sanity check
-
-    def step(grid: dict[Point, Cell]) -> dict[Point, Cell]:
-        res: dict[Point, Cell] = {}
-        for p in map(Point._make, itertools.product(range(50), repeat=2)):
-            res[p] = step_cell(p, grid)
-        return res
-
-    def frozen(grid: dict[Point, Cell]) -> tuple[Cell, ...]:
-        return tuple(grid[p] for p in sorted(grid.keys()))
-
-    def thawed(hashed_grid: tuple[Cell, ...]) -> dict[Point, Cell]:
-        return {Point(i // 50, i % 50): c for i, c in enumerate(hashed_grid)}
-
-    def do_cycles(grid: dict[Point, Cell], end: int) -> dict[Point, Cell]:
-        hashed_grid = frozen(grid)
-        cache = {hashed_grid: 0}
-        t = 0
-        while t < end:
-            hashed_grid = frozen(step(thawed(hashed_grid)))
-            t += 1
-            if hashed_grid in cache:
-                previous_t = cache[hashed_grid]
-                cycle_length = t - previous_t
-                num_cycles = (end - t) // cycle_length
-                t += num_cycles * cycle_length
-            else:
-                cache[hashed_grid] = t
-
-        return thawed(hashed_grid)
-
-    grid = parse(input.splitlines())
-    grid = do_cycles(grid, 1000000000)
-    trees = sum(c == Cell.TREE for c in grid.values())
-    lumberyards = sum(c == Cell.LUMBERYARD for c in grid.values())
-    return trees * lumberyards
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d18/ex2/input b/2018/d18/ex2/input
deleted file mode 100644
index 98cad1f..0000000
--- a/2018/d18/ex2/input
+++ /dev/null
@@ -1,50 +0,0 @@
-.#|#.##....#|....|.#.#.|||.#.|....||....|...|..#..
-..|#||.|#..|...|#|..#...|#...#..#..|.....||..#.|#.
-#|||#..||.....||.#................|..#.##|.#...#.|
-|#..#.|...##...#..#|#|#..|#.#...|....#..#...##....
-.###.........|.||#...#|.|#.||||#..|...||....#..#..
-###.|..|#|...|..||..##.....|..#.|.#.............|.
-..|.|.||.#....|...|....#|.........##||..#||..|.##.
-#||#|...#|..|.|.||#...#|...|#.......|...#.....|...
-....||.....|.|.....#...|.......|...|..|...|......|
-#......#..#|#|..|....#.|.|.#...#.#.|..#.|.....#.#.
-.|#...|...........#|.#....#.#...#.|..|...|....|.|.
-..||.#.|...||#|....#.#..||#..#...#|..#..|..#|.....
-|..|.|..#...|.....#.|..|#.||..#|.|.||#|#..|#...##|
-..|..|#......||##..|........#.|...#.|.|#.#...||..#
-#.|...#.||#..|.|..|..|.#....|.||....|.|....#....#.
-#||.|.#..#..|...#....##|#..#...#.#...|.#...#.....#
-#.|.##.|##..#.##|##........#.|...#...|..#|.#|#|...
-.|#|....|.#...#..|||.#.||..#||.||.|..#.|....|..##.
-|.#.||#|.##.|.||.....#...#.#..###|.#......||#|....
-.|.#..|#||......|##..##.#|..#|.|#.|.|#......|#.|#.
-#..|........|||..|###..|#..|||#.|.|.....#|..|...|#
-..####||#......|#||..###.|...|....#..|.#|.||....||
-|##.......|||..........|..||.#.|#.......##...|...|
-|.......#......####|#|....#....|......#.|#.###...#
-#|.#.|||...|..|.....#....|...|......|#|#|......||.
-...#.|......#..||||.#|.....|.|.|||.|.|.|#|.#...#.#
-#.#.##.|.#|.|...|...|...#|...#.|#..|..##.|....#..|
-|...#.......#....#....#.#....#.#|.|#||.|.|.|#...#.
-#..|.||..|.#..|.#.....#|##.|.|....|....||.......|.
-..||.#..|#|.###....#.#|..#|.#..........#...|...#|.
-|#||.|.#..|....|....#.#||#.|......#..|#.#.|||||#|.
-.|#.|#.##.....#.|.#.....|....|.#..#.#..|#.#.....|.
-#.||.#.......|..|......|#||.|..#....#...|...|...|.
-|.....#.|.....#||.....##...#.#...||.|..#........|.
-||#..|.##.#...........#..|..|.|..#....|...#..||.#.
-..||.##.##.|.||......#...|.#.#.#..#.#...##.#.|.#..
-.|.#......#|#||.|.#|......||.#.|.|..|....#...||...
-....|.##.....|#|####.#..#..#|.....|.#.#|......|...
-...#..|......#....|#.#...|...|.#.#.......#.#.##..#
-.|||#.||||...|..|#||.|.#|#||..|..#..|..|..#||.....
-.....|..#..|#|.||.#||.||......|||..|..#|.|##......
-.#...#|..#..|||..||.|..|.#.#.......||..|...|.|....
-.##.||..|..||.|.......#.|||.|.|..|.#.#..|.||.|#|||
-.|..##|..#.#|#|....|.#.#.#|#.#|.##|........###...#
-..#..|#|...#.........#.#.####..#.#..#..#||#|...#|#
-#.|...|.......|.#.#..#.|#..#|#|..#..|.....|..|...|
-.##.|..#.....|...#..|#..|.|.#..##.#.|..#.|..|.##..
-....|..|.|..||....|...|.....#..|.|.....|.#|......#
-...##.|#..#..|.#|.##....|.#...||#|.....#...##.#|..
-.|....##.....||...#.#.....#|#...#...#|.|..#.#.#.##
diff --git a/2018/d19/ex1/ex1.py b/2018/d19/ex1/ex1.py
deleted file mode 100755
index 09c4a80..0000000
--- a/2018/d19/ex1/ex1.py
+++ /dev/null
@@ -1,98 +0,0 @@
-#!/usr/bin/env python
-
-import copy
-import enum
-import sys
-from typing import NamedTuple
-
-
-class OpCode(enum.StrEnum):
-    ADDR = "addr"
-    ADDI = "addi"
-    MULR = "mulr"
-    MULI = "muli"
-    BANR = "banr"
-    BANI = "bani"
-    BORR = "borr"
-    BORI = "bori"
-    SETR = "setr"
-    SETI = "seti"
-    GTIR = "gtir"
-    GTRI = "gtri"
-    GTRR = "gtrr"
-    EQIR = "eqir"
-    EQRI = "eqri"
-    EQRR = "eqrr"
-
-    def apply(self, registers: list[int], a: int, b: int, c: int) -> list[int]:
-        registers = copy.deepcopy(registers)
-        if self == OpCode.ADDR:
-            registers[c] = registers[a] + registers[b]
-        if self == OpCode.ADDI:
-            registers[c] = registers[a] + b
-        if self == OpCode.MULR:
-            registers[c] = registers[a] * registers[b]
-        if self == OpCode.MULI:
-            registers[c] = registers[a] * b
-        if self == OpCode.BANR:
-            registers[c] = registers[a] & registers[b]
-        if self == OpCode.BANI:
-            registers[c] = registers[a] & b
-        if self == OpCode.BORR:
-            registers[c] = registers[a] | registers[b]
-        if self == OpCode.BORI:
-            registers[c] = registers[a] | b
-        if self == OpCode.SETR:
-            registers[c] = registers[a]
-        if self == OpCode.SETI:
-            registers[c] = a
-        if self == OpCode.GTIR:
-            registers[c] = a > registers[b]
-        if self == OpCode.GTRI:
-            registers[c] = registers[a] > b
-        if self == OpCode.GTRR:
-            registers[c] = registers[a] > registers[b]
-        if self == OpCode.EQIR:
-            registers[c] = a == registers[b]
-        if self == OpCode.EQRI:
-            registers[c] = registers[a] == b
-        if self == OpCode.EQRR:
-            registers[c] = registers[a] == registers[b]
-        return registers
-
-
-class Instruction(NamedTuple):
-    op: OpCode
-    a: int
-    b: int
-    c: int
-
-    def apply(self, registers: list[int]) -> list[int]:
-        return self.op.apply(registers, self.a, self.b, self.c)
-
-
-def solve(input: str) -> int:
-    def parse_instruction(input: str) -> Instruction:
-        op, *values = input.split()
-        return Instruction(OpCode(op), *map(int, values))
-
-    def parse(input: list[str]) -> tuple[int, list[Instruction]]:
-        ip = int(input[0].removeprefix("#ip "))
-        return ip, [parse_instruction(line) for line in input[1:]]
-
-    ip_reg, instructions = parse(input.splitlines())
-    registers = [0] * 6
-
-    while (ip := registers[ip_reg]) < len(instructions):
-        registers = instructions[ip].apply(registers)
-        registers[ip_reg] += 1
-    return registers[0]
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d19/ex1/input b/2018/d19/ex1/input
deleted file mode 100644
index 4214e2c..0000000
--- a/2018/d19/ex1/input
+++ /dev/null
@@ -1,37 +0,0 @@
-#ip 4
-addi 4 16 4
-seti 1 5 3
-seti 1 9 1
-mulr 3 1 2
-eqrr 2 5 2
-addr 2 4 4
-addi 4 1 4
-addr 3 0 0
-addi 1 1 1
-gtrr 1 5 2
-addr 4 2 4
-seti 2 9 4
-addi 3 1 3
-gtrr 3 5 2
-addr 2 4 4
-seti 1 8 4
-mulr 4 4 4
-addi 5 2 5
-mulr 5 5 5
-mulr 4 5 5
-muli 5 11 5
-addi 2 4 2
-mulr 2 4 2
-addi 2 5 2
-addr 5 2 5
-addr 4 0 4
-seti 0 9 4
-setr 4 2 2
-mulr 2 4 2
-addr 4 2 2
-mulr 4 2 2
-muli 2 14 2
-mulr 2 4 2
-addr 5 2 5
-seti 0 0 0
-seti 0 8 4
diff --git a/2018/d19/ex2/ex2.py b/2018/d19/ex2/ex2.py
deleted file mode 100755
index 7699f0b..0000000
--- a/2018/d19/ex2/ex2.py
+++ /dev/null
@@ -1,104 +0,0 @@
-#!/usr/bin/env python
-
-import copy
-import enum
-import sys
-from typing import NamedTuple
-
-
-class OpCode(enum.StrEnum):
-    ADDR = "addr"
-    ADDI = "addi"
-    MULR = "mulr"
-    MULI = "muli"
-    BANR = "banr"
-    BANI = "bani"
-    BORR = "borr"
-    BORI = "bori"
-    SETR = "setr"
-    SETI = "seti"
-    GTIR = "gtir"
-    GTRI = "gtri"
-    GTRR = "gtrr"
-    EQIR = "eqir"
-    EQRI = "eqri"
-    EQRR = "eqrr"
-
-    def apply(self, registers: list[int], a: int, b: int, c: int) -> list[int]:
-        registers = copy.deepcopy(registers)
-        if self == OpCode.ADDR:
-            registers[c] = registers[a] + registers[b]
-        if self == OpCode.ADDI:
-            registers[c] = registers[a] + b
-        if self == OpCode.MULR:
-            registers[c] = registers[a] * registers[b]
-        if self == OpCode.MULI:
-            registers[c] = registers[a] * b
-        if self == OpCode.BANR:
-            registers[c] = registers[a] & registers[b]
-        if self == OpCode.BANI:
-            registers[c] = registers[a] & b
-        if self == OpCode.BORR:
-            registers[c] = registers[a] | registers[b]
-        if self == OpCode.BORI:
-            registers[c] = registers[a] | b
-        if self == OpCode.SETR:
-            registers[c] = registers[a]
-        if self == OpCode.SETI:
-            registers[c] = a
-        if self == OpCode.GTIR:
-            registers[c] = a > registers[b]
-        if self == OpCode.GTRI:
-            registers[c] = registers[a] > b
-        if self == OpCode.GTRR:
-            registers[c] = registers[a] > registers[b]
-        if self == OpCode.EQIR:
-            registers[c] = a == registers[b]
-        if self == OpCode.EQRI:
-            registers[c] = registers[a] == b
-        if self == OpCode.EQRR:
-            registers[c] = registers[a] == registers[b]
-        return registers
-
-
-class Instruction(NamedTuple):
-    op: OpCode
-    a: int
-    b: int
-    c: int
-
-    def apply(self, registers: list[int]) -> list[int]:
-        return self.op.apply(registers, self.a, self.b, self.c)
-
-
-def solve(input: str) -> int:
-    def parse_instruction(input: str) -> Instruction:
-        op, *values = input.split()
-        return Instruction(OpCode(op), *map(int, values))
-
-    def parse(input: list[str]) -> tuple[int, list[Instruction]]:
-        ip = int(input[0].removeprefix("#ip "))
-        return ip, [parse_instruction(line) for line in input[1:]]
-
-    def get_seed(ip_reg: int, instructions: list[Instruction]) -> int:
-        registers = [0] * 6
-        registers[0] = 1
-
-        while (ip := registers[ip_reg]) != 1:
-            registers = instructions[ip].apply(registers)
-            registers[ip_reg] += 1
-
-        return max(registers)
-
-    ip_reg, instructions = parse(input.splitlines())
-    seed = get_seed(ip_reg, instructions)
-    return sum(i for i in range(1, seed + 1) if seed % i == 0)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d19/ex2/input b/2018/d19/ex2/input
deleted file mode 100644
index 4214e2c..0000000
--- a/2018/d19/ex2/input
+++ /dev/null
@@ -1,37 +0,0 @@
-#ip 4
-addi 4 16 4
-seti 1 5 3
-seti 1 9 1
-mulr 3 1 2
-eqrr 2 5 2
-addr 2 4 4
-addi 4 1 4
-addr 3 0 0
-addi 1 1 1
-gtrr 1 5 2
-addr 4 2 4
-seti 2 9 4
-addi 3 1 3
-gtrr 3 5 2
-addr 2 4 4
-seti 1 8 4
-mulr 4 4 4
-addi 5 2 5
-mulr 5 5 5
-mulr 4 5 5
-muli 5 11 5
-addi 2 4 2
-mulr 2 4 2
-addi 2 5 2
-addr 5 2 5
-addr 4 0 4
-seti 0 9 4
-setr 4 2 2
-mulr 2 4 2
-addr 4 2 2
-mulr 4 2 2
-muli 2 14 2
-mulr 2 4 2
-addr 5 2 5
-seti 0 0 0
-seti 0 8 4
diff --git a/2018/d20/ex1/ex1.py b/2018/d20/ex1/ex1.py
deleted file mode 100755
index d75fe38..0000000
--- a/2018/d20/ex1/ex1.py
+++ /dev/null
@@ -1,89 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import copy
-import enum
-import sys
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-
-class Direction(enum.StrEnum):
-    NORTH = "N"
-    SOUTH = "S"
-    WEST = "W"
-    EAST = "E"
-
-    def apply(self, p: Point) -> Point:
-        delta: Point
-        match self:
-            case Direction.NORTH:
-                delta = Point(-1, 0)
-            case Direction.SOUTH:
-                delta = Point(1, 0)
-            case Direction.WEST:
-                delta = Point(0, -1)
-            case Direction.EAST:
-                delta = Point(0, 1)
-        return Point(p.x + delta.x, p.y + delta.y)
-
-
-START = Point(0, 0)
-
-
-def solve(input: str) -> int:
-    def to_graph(regex: str) -> dict[Point, set[Point]]:
-        res: dict[Point, set[Point]] = collections.defaultdict(set)
-        stack: list[set[Point]] = [{START}]
-        current_branches: set[Point] = set()
-        for c in regex.removeprefix("^").removesuffix("$"):
-            if c == "(":
-                stack.append(copy.deepcopy(stack[-1]))
-                current_branches = set()
-            elif c == "|":
-                current_branches |= stack.pop()
-                stack.append(copy.deepcopy(stack[-1]))
-            elif c == ")":
-                current_branches |= stack.pop()
-                stack[-1] = current_branches
-            else:
-                dir = Direction(c)
-                for p in stack[-1]:
-                    neighbour = dir.apply(p)
-                    res[p].add(neighbour)
-                    res[neighbour].add(p)
-                stack[-1] = {dir.apply(p) for p in stack[-1]}
-
-        return dict(res)
-
-    def start_distances(graph: dict[Point, set[Point]]) -> dict[Point, int]:
-        queue = collections.deque([(0, START)])
-        distances: dict[Point, int] = {}
-
-        while queue:
-            dist, p = queue.popleft()
-            if p in distances:
-                continue
-            distances[p] = dist
-            for n in graph.get(p, set()):
-                queue.append((dist + 1, n))
-
-        return distances
-
-    # Remove the anchors, we don't use them in the parsing code
-    graph = to_graph(input.strip())
-    distances = start_distances(graph)
-    return max(distances.values())
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d20/ex1/input b/2018/d20/ex1/input
deleted file mode 100644
index 7be26dc..0000000
--- a/2018/d20/ex1/input
+++ /dev/null
@@ -1 +0,0 @@
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diff --git a/2018/d20/ex2/ex2.py b/2018/d20/ex2/ex2.py
deleted file mode 100755
index 037b565..0000000
--- a/2018/d20/ex2/ex2.py
+++ /dev/null
@@ -1,89 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import copy
-import enum
-import sys
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-
-class Direction(enum.StrEnum):
-    NORTH = "N"
-    SOUTH = "S"
-    WEST = "W"
-    EAST = "E"
-
-    def apply(self, p: Point) -> Point:
-        delta: Point
-        match self:
-            case Direction.NORTH:
-                delta = Point(-1, 0)
-            case Direction.SOUTH:
-                delta = Point(1, 0)
-            case Direction.WEST:
-                delta = Point(0, -1)
-            case Direction.EAST:
-                delta = Point(0, 1)
-        return Point(p.x + delta.x, p.y + delta.y)
-
-
-START = Point(0, 0)
-
-
-def solve(input: str) -> int:
-    def to_graph(regex: str) -> dict[Point, set[Point]]:
-        res: dict[Point, set[Point]] = collections.defaultdict(set)
-        stack: list[set[Point]] = [{START}]
-        current_branches: set[Point] = set()
-        for c in regex.removeprefix("^").removesuffix("$"):
-            if c == "(":
-                stack.append(copy.deepcopy(stack[-1]))
-                current_branches = set()
-            elif c == "|":
-                current_branches |= stack.pop()
-                stack.append(copy.deepcopy(stack[-1]))
-            elif c == ")":
-                current_branches |= stack.pop()
-                stack[-1] = current_branches
-            else:
-                dir = Direction(c)
-                for p in stack[-1]:
-                    neighbour = dir.apply(p)
-                    res[p].add(neighbour)
-                    res[neighbour].add(p)
-                stack[-1] = {dir.apply(p) for p in stack[-1]}
-
-        return dict(res)
-
-    def start_distances(graph: dict[Point, set[Point]]) -> dict[Point, int]:
-        queue = collections.deque([(0, START)])
-        distances: dict[Point, int] = {}
-
-        while queue:
-            dist, p = queue.popleft()
-            if p in distances:
-                continue
-            distances[p] = dist
-            for n in graph.get(p, set()):
-                queue.append((dist + 1, n))
-
-        return distances
-
-    # Remove the anchors, we don't use them in the parsing code
-    graph = to_graph(input.strip())
-    distances = start_distances(graph)
-    return sum(d >= 1000 for d in distances.values())
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d20/ex2/input b/2018/d20/ex2/input
deleted file mode 100644
index 7be26dc..0000000
--- a/2018/d20/ex2/input
+++ /dev/null
@@ -1 +0,0 @@
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diff --git a/2018/d21/ex1/ex1.py b/2018/d21/ex1/ex1.py
deleted file mode 100755
index 285166a..0000000
--- a/2018/d21/ex1/ex1.py
+++ /dev/null
@@ -1,107 +0,0 @@
-#!/usr/bin/env python
-
-import copy
-import enum
-import sys
-from typing import NamedTuple
-
-
-class OpCode(enum.StrEnum):
-    ADDR = "addr"
-    ADDI = "addi"
-    MULR = "mulr"
-    MULI = "muli"
-    BANR = "banr"
-    BANI = "bani"
-    BORR = "borr"
-    BORI = "bori"
-    SETR = "setr"
-    SETI = "seti"
-    GTIR = "gtir"
-    GTRI = "gtri"
-    GTRR = "gtrr"
-    EQIR = "eqir"
-    EQRI = "eqri"
-    EQRR = "eqrr"
-
-    def apply(self, registers: list[int], a: int, b: int, c: int) -> list[int]:
-        registers = copy.deepcopy(registers)
-        if self == OpCode.ADDR:
-            registers[c] = registers[a] + registers[b]
-        if self == OpCode.ADDI:
-            registers[c] = registers[a] + b
-        if self == OpCode.MULR:
-            registers[c] = registers[a] * registers[b]
-        if self == OpCode.MULI:
-            registers[c] = registers[a] * b
-        if self == OpCode.BANR:
-            registers[c] = registers[a] & registers[b]
-        if self == OpCode.BANI:
-            registers[c] = registers[a] & b
-        if self == OpCode.BORR:
-            registers[c] = registers[a] | registers[b]
-        if self == OpCode.BORI:
-            registers[c] = registers[a] | b
-        if self == OpCode.SETR:
-            registers[c] = registers[a]
-        if self == OpCode.SETI:
-            registers[c] = a
-        if self == OpCode.GTIR:
-            registers[c] = a > registers[b]
-        if self == OpCode.GTRI:
-            registers[c] = registers[a] > b
-        if self == OpCode.GTRR:
-            registers[c] = registers[a] > registers[b]
-        if self == OpCode.EQIR:
-            registers[c] = a == registers[b]
-        if self == OpCode.EQRI:
-            registers[c] = registers[a] == b
-        if self == OpCode.EQRR:
-            registers[c] = registers[a] == registers[b]
-        return registers
-
-
-class Instruction(NamedTuple):
-    op: OpCode
-    a: int
-    b: int
-    c: int
-
-    def apply(self, registers: list[int]) -> list[int]:
-        return self.op.apply(registers, self.a, self.b, self.c)
-
-
-def solve(input: str) -> int:
-    def parse_instruction(input: str) -> Instruction:
-        op, *values = input.split()
-        return Instruction(OpCode(op), *map(int, values))
-
-    def parse(input: list[str]) -> tuple[int, list[Instruction]]:
-        ip = int(input[0].removeprefix("#ip "))
-        return ip, [parse_instruction(line) for line in input[1:]]
-
-    # Relies on the input having a singular `EQRR` instruction
-    def find_comparison(ip_reg: int, instructions: list[Instruction]) -> int:
-        registers = [0] * 6
-        while (ip := registers[ip_reg]) < len(instructions):
-            instr = instructions[ip]
-            if instr.op == OpCode.EQRR:
-                operands = {instr.a, instr.b}
-                assert 0 in operands  # Sanity check
-                operands.remove(0)
-                return registers[operands.pop()]
-            registers = instr.apply(registers)
-            registers[ip_reg] += 1
-        assert False  # Sanity check
-
-    ip_reg, instructions = parse(input.splitlines())
-    return find_comparison(ip_reg, instructions)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d21/ex1/input b/2018/d21/ex1/input
deleted file mode 100644
index 3fd660d..0000000
--- a/2018/d21/ex1/input
+++ /dev/null
@@ -1,32 +0,0 @@
-#ip 1
-seti 123 0 3
-bani 3 456 3
-eqri 3 72 3
-addr 3 1 1
-seti 0 0 1
-seti 0 9 3
-bori 3 65536 5
-seti 15028787 4 3
-bani 5 255 2
-addr 3 2 3
-bani 3 16777215 3
-muli 3 65899 3
-bani 3 16777215 3
-gtir 256 5 2
-addr 2 1 1
-addi 1 1 1
-seti 27 3 1
-seti 0 9 2
-addi 2 1 4
-muli 4 256 4
-gtrr 4 5 4
-addr 4 1 1
-addi 1 1 1
-seti 25 1 1
-addi 2 1 2
-seti 17 8 1
-setr 2 4 5
-seti 7 3 1
-eqrr 3 0 2
-addr 2 1 1
-seti 5 3 1
diff --git a/2018/d21/ex2/ex2.py b/2018/d21/ex2/ex2.py
deleted file mode 100755
index e7a744d..0000000
--- a/2018/d21/ex2/ex2.py
+++ /dev/null
@@ -1,138 +0,0 @@
-#!/usr/bin/env python
-
-import copy
-import enum
-import sys
-from typing import NamedTuple
-
-
-class OpCode(enum.StrEnum):
-    ADDR = "addr"
-    ADDI = "addi"
-    MULR = "mulr"
-    MULI = "muli"
-    BANR = "banr"
-    BANI = "bani"
-    BORR = "borr"
-    BORI = "bori"
-    SETR = "setr"
-    SETI = "seti"
-    GTIR = "gtir"
-    GTRI = "gtri"
-    GTRR = "gtrr"
-    EQIR = "eqir"
-    EQRI = "eqri"
-    EQRR = "eqrr"
-
-    def apply(self, registers: list[int], a: int, b: int, c: int) -> list[int]:
-        registers = copy.deepcopy(registers)
-        if self == OpCode.ADDR:
-            registers[c] = registers[a] + registers[b]
-        if self == OpCode.ADDI:
-            registers[c] = registers[a] + b
-        if self == OpCode.MULR:
-            registers[c] = registers[a] * registers[b]
-        if self == OpCode.MULI:
-            registers[c] = registers[a] * b
-        if self == OpCode.BANR:
-            registers[c] = registers[a] & registers[b]
-        if self == OpCode.BANI:
-            registers[c] = registers[a] & b
-        if self == OpCode.BORR:
-            registers[c] = registers[a] | registers[b]
-        if self == OpCode.BORI:
-            registers[c] = registers[a] | b
-        if self == OpCode.SETR:
-            registers[c] = registers[a]
-        if self == OpCode.SETI:
-            registers[c] = a
-        if self == OpCode.GTIR:
-            registers[c] = a > registers[b]
-        if self == OpCode.GTRI:
-            registers[c] = registers[a] > b
-        if self == OpCode.GTRR:
-            registers[c] = registers[a] > registers[b]
-        if self == OpCode.EQIR:
-            registers[c] = a == registers[b]
-        if self == OpCode.EQRI:
-            registers[c] = registers[a] == b
-        if self == OpCode.EQRR:
-            registers[c] = registers[a] == registers[b]
-        return registers
-
-
-class Instruction(NamedTuple):
-    op: OpCode
-    a: int
-    b: int
-    c: int
-
-    def apply(self, registers: list[int]) -> list[int]:
-        return self.op.apply(registers, self.a, self.b, self.c)
-
-
-def solve(input: str) -> int:
-    def parse_instruction(input: str) -> Instruction:
-        op, *values = input.split()
-        return Instruction(OpCode(op), *map(int, values))
-
-    def parse(input: list[str]) -> tuple[int, list[Instruction]]:
-        ip = int(input[0].removeprefix("#ip "))
-        return ip, [parse_instruction(line) for line in input[1:]]
-
-    def hash_loop(n: int, seed: int, perturb: int) -> int:
-        n |= 0x10000  #
-        while n:
-            seed += n & 0xFF
-            seed &= 0xFFFFFF  # Keeps 24-bit
-            seed *= perturb
-            seed &= 0xFFFFFF  # Keeps 24-bit
-            n >>= 8
-        return seed
-
-    # Relies heavily on input having a specific shape
-    def hash_params(ip_reg: int, instructions: list[Instruction]) -> tuple[int, int]:
-        def seed_index() -> int:
-            for i, instr in enumerate(instructions):
-                if instr.op == OpCode.BORI and instr.b == 65536:
-                    return i + 1
-            assert False  # Sanity check
-
-        def perturb_index() -> int:
-            for i, instr in enumerate(instructions):
-                if instr.op == OpCode.BANI and instr.b == 16777215:
-                    return i + 1
-            assert False  # Sanity check
-
-        seed_instr = instructions[seed_index()]
-        perturb_instr = instructions[perturb_index()]
-
-        assert seed_instr.op == OpCode.SETI  # Sanity check
-        assert perturb_instr.op == OpCode.MULI  # Sanity check
-        assert perturb_instr.a == perturb_instr.c  # Sanity check
-        return seed_instr.a, perturb_instr.b
-
-    def find_comparison(ip_reg: int, instructions: list[Instruction]) -> int:
-        seed, perturb = hash_params(ip_reg, instructions)
-        value = 0
-        count = 0
-        seen: set[int] = set()
-        while True:
-            count += (value << 8) + (value << 16)
-            if (new_value := hash_loop(value, seed, perturb)) in seen:
-                return value
-            seen.add(new_value)
-            value = new_value
-        assert False  # Sanity check
-
-    ip_reg, instructions = parse(input.splitlines())
-    return find_comparison(ip_reg, instructions)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d21/ex2/input b/2018/d21/ex2/input
deleted file mode 100644
index 3fd660d..0000000
--- a/2018/d21/ex2/input
+++ /dev/null
@@ -1,32 +0,0 @@
-#ip 1
-seti 123 0 3
-bani 3 456 3
-eqri 3 72 3
-addr 3 1 1
-seti 0 0 1
-seti 0 9 3
-bori 3 65536 5
-seti 15028787 4 3
-bani 5 255 2
-addr 3 2 3
-bani 3 16777215 3
-muli 3 65899 3
-bani 3 16777215 3
-gtir 256 5 2
-addr 2 1 1
-addi 1 1 1
-seti 27 3 1
-seti 0 9 2
-addi 2 1 4
-muli 4 256 4
-gtrr 4 5 4
-addr 4 1 1
-addi 1 1 1
-seti 25 1 1
-addi 2 1 2
-seti 17 8 1
-setr 2 4 5
-seti 7 3 1
-eqrr 3 0 2
-addr 2 1 1
-seti 5 3 1
diff --git a/2018/d22/ex1/ex1.py b/2018/d22/ex1/ex1.py
deleted file mode 100755
index c49e69d..0000000
--- a/2018/d22/ex1/ex1.py
+++ /dev/null
@@ -1,67 +0,0 @@
-#!/usr/bin/env python
-
-import enum
-import itertools
-import sys
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-
-class Region(enum.IntEnum):
-    ROCKY = 0
-    WET = 1
-    NARROW = 2
-
-
-def solve(input: str) -> int:
-    def parse(input: list[str]) -> tuple[int, Point]:
-        depth = input[0].removeprefix("depth: ")
-        target = input[1].removeprefix("target: ")
-        return int(depth), Point(*(int(n) for n in target.split(",")))
-
-    def compute_erosions(depth: int, target: Point) -> dict[Point, int]:
-        res: dict[Point, int] = {}
-        for x in range(0, target.x + 1):
-            for y in range(0, target.y + 1):
-                p = Point(x, y)
-                if p == Point(0, 0) or p == target:
-                    res[p] = 0
-                elif p.y == 0:
-                    res[p] = p.x * 16807
-                elif p.x == 0:
-                    res[p] = p.y * 48271
-                else:
-                    res[p] = res[Point(p.x - 1, p.y)] * res[Point(p.x, p.y - 1)]
-                # Go from geologic index to erosion level
-                res[p] += depth
-                res[p] %= 20183
-        return res
-
-    def compute_regions(depth: int, target: Point) -> dict[Point, Region]:
-        return {
-            p: Region(erosion % 3)
-            for p, erosion in compute_erosions(depth, target).items()
-        }
-
-    depth, target = parse(input.splitlines())
-    regions = compute_regions(depth, target)
-    return sum(
-        regions[p]
-        for p in map(
-            Point._make,
-            itertools.product(range(0, target.x + 1), range(target.y + 1)),
-        )
-    )
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d22/ex1/input b/2018/d22/ex1/input
deleted file mode 100644
index 2e537a8..0000000
--- a/2018/d22/ex1/input
+++ /dev/null
@@ -1,2 +0,0 @@
-depth: 7740
-target: 12,763
diff --git a/2018/d22/ex2/ex2.py b/2018/d22/ex2/ex2.py
deleted file mode 100755
index d27f3a3..0000000
--- a/2018/d22/ex2/ex2.py
+++ /dev/null
@@ -1,128 +0,0 @@
-#!/usr/bin/env python
-
-import dataclasses
-import enum
-import heapq
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-    def neighbours(self) -> Iterator["Point"]:
-        for dx, dy in (
-            (-1, 0),
-            (1, 0),
-            (0, -1),
-            (0, 1),
-        ):
-            yield Point(self.x + dx, self.y + dy)
-
-
-class Region(enum.IntEnum):
-    ROCKY = 0
-    WET = 1
-    NARROW = 2
-
-
-@dataclasses.dataclass
-class Cave:
-    depth: int
-    target: Point
-    erosion: dict[Point, int] = dataclasses.field(init=False)
-
-    def __post_init__(self) -> None:
-        self.erosion = {}
-
-    def erosion_at(self, p: Point) -> int:
-        if p in self.erosion:
-            return self.erosion[p]
-
-        if p == Point(0, 0) or p == self.target:
-            self.erosion[p] = 0
-        elif p.y == 0:
-            self.erosion[p] = p.x * 16807
-        elif p.x == 0:
-            self.erosion[p] = p.y * 48271
-        else:
-            self.erosion[p] = self.erosion_at(Point(p.x - 1, p.y)) * self.erosion_at(
-                Point(p.x, p.y - 1)
-            )
-        # Go from geologic index to erosion level
-        self.erosion[p] += self.depth
-        self.erosion[p] %= 20183
-        return self.erosion[p]
-
-    def region_at(self, p: Point) -> Region:
-        return Region(self.erosion_at(p) % 3)
-
-
-class Gear(enum.IntEnum):
-    NEITHER = 0
-    TORCH = 1
-    CLIMBING = 2
-
-
-class Explorer(NamedTuple):
-    pos: Point
-    gear: Gear
-
-
-def solve(input: str) -> int:
-    def parse(input: list[str]) -> tuple[int, Point]:
-        depth = input[0].removeprefix("depth: ")
-        target = input[1].removeprefix("target: ")
-        return int(depth), Point(*(int(n) for n in target.split(",")))
-
-    def next_state(explorer: Explorer, cave: Cave) -> Iterator[tuple[int, Explorer]]:
-        for n in explorer.pos.neighbours():
-            if n.x < 0 or n.y < 0:
-                continue
-            region = cave.region_at(n)
-            if region == Region.ROCKY:
-                for gear in (Gear.CLIMBING, Gear.TORCH):
-                    yield 1 + (7 if gear != explorer.gear else 0), Explorer(n, gear)
-            if region == Region.WET:
-                for gear in (Gear.CLIMBING, Gear.NEITHER):
-                    yield 1 + (7 if gear != explorer.gear else 0), Explorer(n, gear)
-            if region == Region.NARROW:
-                for gear in (Gear.TORCH, Gear.NEITHER):
-                    yield 1 + (7 if gear != explorer.gear else 0), Explorer(n, gear)
-
-    def djikstra(start: Explorer, end: Explorer, cave: Cave) -> int:
-        # Priority queue of (distance, point)
-        queue = [(0, start)]
-        seen: set[Explorer] = set()
-
-        while len(queue) > 0:
-            cost, explorer = heapq.heappop(queue)
-            if explorer == end:
-                return cost
-            # We must have seen p with a smaller distance before
-            if explorer in seen:
-                continue
-            # First time encountering p, must be the smallest distance to it
-            seen.add(explorer)
-            # Add all neighbours to be visited
-            for time, n in next_state(explorer, cave):
-                heapq.heappush(queue, (cost + time, n))
-
-        assert False  # Sanity check
-
-    depth, target = parse(input.splitlines())
-    cave = Cave(depth, target)
-    start = Explorer(Point(0, 0), Gear.TORCH)
-    end = Explorer(target, Gear.TORCH)
-    return djikstra(start, end, cave)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d22/ex2/input b/2018/d22/ex2/input
deleted file mode 100644
index 2e537a8..0000000
--- a/2018/d22/ex2/input
+++ /dev/null
@@ -1,2 +0,0 @@
-depth: 7740
-target: 12,763
diff --git a/2018/d23/ex1/ex1.py b/2018/d23/ex1/ex1.py
deleted file mode 100755
index 34c2d4c..0000000
--- a/2018/d23/ex1/ex1.py
+++ /dev/null
@@ -1,42 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-    z: int
-
-
-class NanoBot(NamedTuple):
-    pos: Point
-    r: int
-
-
-def solve(input: str) -> int:
-    def parse_nanobot(input: str) -> NanoBot:
-        pos, r = input.split(", ")
-        pos = pos.removeprefix("pos=<").removesuffix(">")
-        r = r.removeprefix("r=")
-        return NanoBot(Point(*(int(n) for n in pos.split(","))), int(r))
-
-    def parse(input: list[str]) -> list[NanoBot]:
-        return [parse_nanobot(line) for line in input]
-
-    def dist(lhs: Point, rhs: Point) -> int:
-        return sum(abs(l - r) for l, r in zip(lhs, rhs))
-
-    bots = parse(input.splitlines())
-    strongest = max(bots, key=lambda b: b.r)
-    return sum(dist(strongest.pos, bot.pos) <= strongest.r for bot in bots)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d23/ex1/input b/2018/d23/ex1/input
deleted file mode 100644
index 56ad959..0000000
--- a/2018/d23/ex1/input
+++ /dev/null
@@ -1,1000 +0,0 @@
-pos=<-26800153,54191419,14631486>, r=91909373
-pos=<2726122,52059927,-16784250>, r=91667585
-pos=<-1106302,78464933,37274659>, r=67846291
-pos=<-14676967,62367449,15230451>, r=87363344
-pos=<19283542,94968325,14626623>, r=86607330
-pos=<-1066104,66788622,7322926>, r=86081067
-pos=<-10327813,66959254,82168838>, r=82685423
-pos=<-12782412,37618518,45011118>, r=51320903
-pos=<-31606634,65230754,46027117>, r=76359614
-pos=<6733972,69543990,63956247>, r=49996039
-pos=<33854876,65000033,-14697092>, r=94704404
-pos=<-20114176,65135803,21306016>, r=89493234
-pos=<19966373,79368650,31671383>, r=53280220
-pos=<-44504614,61642083,47567346>, r=84128697
-pos=<-56959179,50805665,60035489>, r=91029871
-pos=<3833359,78337041,45411039>, r=54641822
-pos=<-9740514,69356208,46871803>, r=57774088
-pos=<79176394,59665612,42223492>, r=77771037
-pos=<-44885922,65011789,56458424>, r=89585685
-pos=<7188801,67430842,33413070>, r=52378146
-pos=<71981622,67198516,44650418>, r=75682568
-pos=<8471951,53949119,56588672>, r=90202717
-pos=<-21149813,53082243,44100402>, r=55681037
-pos=<61465091,51705189,24744707>, r=69577644
-pos=<-48427679,48875846,40504608>, r=82348095
-pos=<-16413220,64687719,48523359>, r=58127145
-pos=<41280618,18195971,22818620>, r=77036684
-pos=<24578568,12510958,32539456>, r=56298676
-pos=<10014943,77504976,13215099>, r=79824160
-pos=<32099889,55841549,33503165>, r=76599362
-pos=<-25934900,49453902,45457577>, r=55480521
-pos=<194428994,55319521,14326800>, r=72677431
-pos=<64044431,68921123,53558270>, r=65356299
-pos=<8611401,78916429,97105501>, r=90640047
-pos=<-3354425,50156520,49667979>, r=94822817
-pos=<86727740,49651294,37209042>, r=80322343
-pos=<-25482281,71458393,35135292>, r=87354550
-pos=<-56538221,50861580,45009103>, r=87939856
-pos=<25189303,52501081,55911181>, r=77913908
-pos=<-43747179,38521232,45927670>, r=80465847
-pos=<28680978,69986439,11874426>, r=67945167
-pos=<84354566,50011206,47992976>, r=67524866
-pos=<-44279563,46448363,48653641>, r=70345204
-pos=<-21033349,75676883,30863095>, r=91396305
-pos=<6132544,89170880,28377983>, r=80209515
-pos=<5838072,86938933,42122977>, r=64527115
-pos=<19427534,-8143678,45615709>, r=64268506
-pos=<14819968,60850429,35713119>, r=50675563
-pos=<2961664,78461502,47449899>, r=53599108
-pos=<-43363971,60346889,68132431>, r=95072805
-pos=<5444783,51735310,5801133>, r=66038720
-pos=<51608916,70339966,28851636>, r=74249476
-pos=<-39895346,56431956,29333441>, r=92543042
-pos=<-8613222,49276399,-6637951>, r=90076739
-pos=<68217090,56383884,49837668>, r=55915388
-pos=<-23031224,75798534,46219198>, r=78159777
-pos=<9982548,48837003,95009075>, r=57093080
-pos=<11783440,101197289,19256213>, r=95706918
-pos=<5523354,59300428,13433224>, r=65893184
-pos=<18607093,110399850,43651250>, r=73690807
-pos=<2119163,109847789,55948700>, r=86906887
-pos=<-47528630,71901316,54008364>, r=96667956
-pos=<68703448,66891625,43604620>, r=73142546
-pos=<-11507569,59058987,14159146>, r=81956819
-pos=<-20564060,52868253,42381061>, r=56600509
-pos=<7665464,86789990,47784126>, r=56889621
-pos=<-10994018,54755473,96964752>, r=85943807
-pos=<6628394,78144875,18768936>, r=78296745
-pos=<53248088,44523505,74094303>, r=57269778
-pos=<-31135955,38636131,22867651>, r=90799844
-pos=<-120483,94499416,39227452>, r=80941609
-pos=<43961851,57733220,13187610>, r=69659612
-pos=<-17145296,52725010,33700875>, r=61718656
-pos=<42398975,51457938,48534837>, r=50684428
-pos=<32989135,27108010,-11418788>, r=94070570
-pos=<-41281619,58529318,43713414>, r=81646835
-pos=<15676046,87664036,4474396>, r=93062768
-pos=<91288458,56341397,53854879>, r=80317303
-pos=<-13993707,51443582,19773222>, r=71213598
-pos=<-26166431,44282826,62488660>, r=63220434
-pos=<13760583,96393695,84713578>, r=90576204
-pos=<1399179,59472056,30865564>, r=52756738
-pos=<44353782,84240054,46022166>, r=63724044
-pos=<15223202,64424455,110031048>, r=82461868
-pos=<1831436,72155489,42370476>, r=53502789
-pos=<-3212782,90085872,69767179>, r=86295528
-pos=<2924551,84160632,22919443>, r=83865971
-pos=<-5277120,114055875,46749493>, r=98132946
-pos=<-44091102,60876760,34007702>, r=96509437
-pos=<9170763,60331193,24167167>, r=52542457
-pos=<4244629,37697533,19314365>, r=59911105
-pos=<66675928,53812019,35745466>, r=65894729
-pos=<17791554,54901626,27988883>, r=70869570
-pos=<20375935,50364328,-1807360>, r=57344942
-pos=<35621840,44634149,62393026>, r=70971770
-pos=<-42604642,57071715,45246338>, r=79979189
-pos=<-14872097,43082336,77210959>, r=67848969
-pos=<54374149,83056200,33467311>, r=85115127
-pos=<1476108,6758434,46385542>, r=66547693
-pos=<25039805,52794798,-19161299>, r=78147972
-pos=<-26819047,43199801,30459488>, r=74327370
-pos=<4286668,110940760,38802604>, r=93400678
-pos=<4053848,87892295,76015736>, r=83083719
-pos=<-1921035,61253227,-3665179>, r=92388716
-pos=<17204393,27151196,113219747>, r=87712277
-pos=<11482784,81631206,44449045>, r=51248801
-pos=<19881378,33514197,5150119>, r=62622046
-pos=<46089433,22660842,35676189>, r=64523299
-pos=<-2707511,17390331,65062945>, r=69228121
-pos=<-160344804,31914854,69649477>, r=58216880
-pos=<25746542,31258930,-22386759>, r=93644875
-pos=<-24641910,49256326,49576498>, r=49870969
-pos=<8138665,60289998,19311562>, r=58388923
-pos=<-49531327,40283414,41864583>, r=88551146
-pos=<-35890107,52441195,48988086>, r=64892519
-pos=<-9694645,68139955,55216246>, r=56280378
-pos=<3863609,74729614,36250636>, r=60164724
-pos=<20303891,76310639,47902413>, r=86110011
-pos=<5590258,65228278,22729995>, r=62457193
-pos=<7423293,113176291,47365165>, r=83936992
-pos=<9618443,-3334255,39112439>, r=75771037
-pos=<-15665487,65099560,48409673>, r=57904562
-pos=<-7406634,100313652,40556843>, r=92712595
-pos=<-7808460,15185536,29431259>, r=84359733
-pos=<-20145227,53162066,88647521>, r=85184552
-pos=<37028648,69939239,6285541>, r=81834647
-pos=<5755081,53742866,-9631786>, r=83168760
-pos=<11994016,50570209,49770258>, r=76269963
-pos=<6880573,89480514,31780836>, r=76368504
-pos=<-46877937,54638115,63437148>, r=88182724
-pos=<16761128,23463725,25560039>, r=55383042
-pos=<25619949,52383554,-14813656>, r=73969587
-pos=<-26151263,32330589,41470378>, r=73517864
-pos=<19942771,70356015,76849403>, r=50492213
-pos=<-18161652,17316315,38537427>, r=83475483
-pos=<19062989,86048494,35866945>, r=56668035
-pos=<-45283899,38588597,49149050>, r=78713876
-pos=<34105015,57347311,44606084>, r=61167471
-pos=<-15777887,63979386,46604073>, r=58702364
-pos=<5832914,66060638,109347991>, r=92805279
-pos=<17688916,56658632,58192464>, r=96313666
-pos=<6355763,80927880,41100496>, r=59020806
-pos=<11173519,50579434,59312652>, r=88064738
-pos=<-3905996,71416341,38543106>, r=62328789
-pos=<-50059189,58354525,42463481>, r=91499385
-pos=<-21617101,65640062,44787685>, r=68018684
-pos=<-28761475,51594902,42803996>, r=63101533
-pos=<10929227,58507467,10052175>, r=63075266
-pos=<-38430792,66655079,49444346>, r=81190702
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-pos=<8739446,16648317,45543645>, r=50236327
-pos=<-19331613,64553140,58793421>, r=65907903
-pos=<-29611001,14073482,45232620>, r=91472836
-pos=<8941863,94910846,40459302>, r=71059048
-pos=<-40761819,59468622,49346148>, r=76433650
-pos=<4343551,85385986,45466767>, r=61124866
-pos=<-22177207,50375490,69798895>, r=65581142
-pos=<18538560,101071117,42535514>, r=65546302
-pos=<16679994,57387579,50086645>, r=77273767
-pos=<-40754986,49327339,35496344>, r=80135160
-pos=<-42137035,68104815,43123472>, r=92667820
-pos=<-33297966,74528415,50063208>, r=83312382
-pos=<-1516605,71770703,19476803>, r=79359669
-pos=<12665073,68014777,105798750>, r=84378075
-pos=<-32757819,49073817,52537506>, r=57598763
-pos=<-33519066,45859525,40007164>, r=68819947
-pos=<86082037,52568755,46592409>, r=73210472
-pos=<-71556811,52200916,50084496>, r=99222384
-pos=<-28139761,50073799,22611947>, r=81150858
-pos=<13541164,91369683,32775224>, r=70602520
-pos=<-16317236,56068753,54560328>, r=50175959
-pos=<-11331344,51596532,85248648>, r=71406256
-pos=<-5931204,91111332,52396432>, r=72668490
-pos=<90289920,65845518,39399462>, r=97888047
-pos=<-3984592,51498988,48025950>, r=62092105
-pos=<3555037,87300161,42451961>, r=66842347
-pos=<-24589823,38535355,42558945>, r=64663151
-pos=<8782570,35154521,12462985>, r=64767726
-pos=<-37716780,63787472,59928868>, r=84662993
-pos=<-44579937,59640123,30698580>, r=99070649
-pos=<-55181742,64393089,46049932>, r=99074084
-pos=<-18035862,49604454,33775573>, r=59413952
-pos=<-12016341,59298834,30659871>, r=66204470
-pos=<18780968,7353383,18991027>, r=76042336
-pos=<14767876,70957328,48457261>, r=68122955
-pos=<176257,53187561,-8060611>, r=86621097
-pos=<-40135229,51998675,40377712>, r=77305429
-pos=<-56334739,53536066,42888336>, r=92531638
-pos=<-11171826,46664881,16674320>, r=69000193
-pos=<-38417421,73491747,43836162>, r=93622256
-pos=<6291993,59441100,47457386>, r=56292961
-pos=<2205547,114639308,46447857>, r=91535176
-pos=<15765659,98173971,47159153>, r=60798366
-pos=<-675874,54765553,961325>, r=80029272
-pos=<-24007098,72054783,48164877>, r=73446429
-pos=<12661038,42714476,49527033>, r=59232028
-pos=<-9301220,78721935,43851305>, r=69721021
-pos=<18229397,66808011,-9490519>, r=83618304
-pos=<-2812165,50834360,-17192926>, r=96388788
-pos=<15273284,83684501,9255317>, r=84705079
-pos=<25313976,76586387,94916933>, r=75649821
-pos=<83496364,57748330,44686539>, r=77710636
-pos=<-36028080,64272970,53195701>, r=76726277
-pos=<261370,98959952,41421871>, r=82826175
-pos=<19961413,92709316,2188488>, r=96108590
-pos=<-27744282,54399903,52610801>, r=57984580
-pos=<-37764856,55482711,45273766>, r=73523082
-pos=<6152034,51895689,112513637>, r=81486818
-pos=<-3620749,75990775,50026613>, r=55134415
-pos=<23685113,52343937,-27788152>, r=84969616
-pos=<26593265,67955055,22317572>, r=53382829
-pos=<5862115,67320726,-7744908>, r=94752728
-pos=<44977728,77579884,40227014>, r=63483062
-pos=<74393904,54186069,86175718>, r=93588247
-pos=<-30553363,66174930,35164879>, r=87112949
-pos=<846033,79419918,17759962>, r=86363085
-pos=<-40099609,59337331,41208658>, r=83777471
-pos=<-55842569,51636231,46920841>, r=86107111
-pos=<17515213,55299696,-11816155>, r=75149814
-pos=<-37784825,39818181,75335333>, r=92149923
-pos=<-12420237,59829730,35273741>, r=62525397
-pos=<-32523179,51372964,46315822>, r=63129489
-pos=<-30806438,72779505,49545610>, r=79589491
-pos=<-23829845,50807049,41247927>, r=58938154
-pos=<4660069,-16707481,46183487>, r=87031514
-pos=<-19549685,80746152,49937584>, r=75907412
-pos=<-41545505,49666087,63429881>, r=77870992
-pos=<-9176964,70779012,38604780>, r=66900348
-pos=<19366593,75787464,24120212>, r=57849927
-pos=<-14750430,73417796,44573391>, r=69144019
-pos=<-31774450,57071943,28643145>, r=85752443
-pos=<-7965034,60706991,44164680>, r=50056547
-pos=<51214616,73858526,38715005>, r=67510288
-pos=<10251526,69070534,101419818>, r=83468358
-pos=<-4958688,64877199,5190665>, r=90194415
-pos=<-36841538,57544331,33454243>, r=86481108
-pos=<-18958623,55225437,48608264>, r=51125038
-pos=<-3280361,53433769,-10771980>, r=93035347
-pos=<12825120,52631982,48360699>, r=96729476
-pos=<-42088987,52508004,30671939>, r=89474612
-pos=<-35099129,67549370,49921294>, r=78276592
-pos=<-6571815,67176770,76063719>, r=73042022
-pos=<2416377,56619494,72699592>, r=50132248
-pos=<97064159,50626941,48020070>, r=80823113
-pos=<51272253,26380803,33326913>, r=68335442
-pos=<9342781,53889780,43080304>, r=95582105
-pos=<-1683556,74871475,26684699>, r=75419689
-pos=<8655690,7777306,47799320>, r=56935265
-pos=<17035815,109258089,18976615>, r=98795114
-pos=<24611871,66002331,-21792415>, r=93558729
-pos=<31447616,56064626,18586455>, r=50077924
-pos=<-5130339,-22115664,52509829>, r=98603762
-pos=<92722633,107452480,143663345>, r=61974061
-pos=<-70026018,75795232,-32798349>, r=88409720
-pos=<15619226,95376541,39039546>, r=66267023
-pos=<-1207251,78798343,57094406>, r=60329522
-pos=<2132042,10320424,31576336>, r=77138788
-pos=<82004303,49184026,53999531>, r=64020754
-pos=<63570907,37966831,10497262>, r=91877487
-pos=<12030100,85242976,32983936>, r=65778531
-pos=<47765320,67685594,9420635>, r=87182355
-pos=<-25084947,55874463,49173858>, r=57334709
-pos=<37219734,65474633,8637481>, r=75209281
-pos=<23232094,68810264,43970026>, r=51966614
-pos=<9716868,85176052,86308160>, r=84996869
-pos=<-15307394,68315425,79438673>, r=86291752
-pos=<-24943052,40142371,19904420>, r=86063831
-pos=<-62778009,55062212,48188208>, r=95201334
-pos=<15774791,78686937,10759637>, r=77701773
-pos=<2412046,90195442,37515010>, r=75817676
-pos=<15199931,75830351,93500764>, r=77360701
-pos=<9763716,49114305,-19374106>, r=84274068
-pos=<19644689,89449989,35579117>, r=59775441
-pos=<12395354,50087041,5657795>, r=57583144
-pos=<12068322,56646634,81855752>, r=49663605
-pos=<-22969583,59602246,34244087>, r=73876898
-pos=<7580461,91934347,45722448>, r=64180664
-pos=<-3560538,72561264,14695420>, r=86975860
-pos=<-45074040,57657932,48541858>, r=79739309
-pos=<-18398078,65110734,53891019>, r=60629463
-pos=<44224718,33095683,31706952>, r=56192890
-pos=<-10774711,48950748,26982525>, r=58292086
-pos=<2605308,68722337,27786615>, r=63879636
-pos=<-1339359,24098920,22336372>, r=76071679
-pos=<-4438041,72545226,25089955>, r=77442602
-pos=<-6246231,34031597,15411121>, r=77971312
-pos=<-23002804,57043932,81328580>, r=84605074
-pos=<35048807,50807135,49019441>, r=94840805
-pos=<1863063,64010732,24909086>, r=62787946
-pos=<76640525,56175554,25669192>, r=88299186
-pos=<34310529,75546211,13529288>, r=77479538
-pos=<46878403,67399215,21839672>, r=73590048
-pos=<-29566728,48860198,32191929>, r=71784211
-pos=<47336901,99330017,45502113>, r=82316912
-pos=<35783602,102518119,56209209>, r=73343452
-pos=<38055746,55924973,-6345047>, r=81477836
-pos=<8608899,54529451,44721618>, r=91048066
-pos=<-23322941,35425975,65556423>, r=72301694
-pos=<66175266,61309696,33060367>, r=75577292
-pos=<-2630171,77181433,44606184>, r=60754647
-pos=<15615476,103373392,46114344>, r=67192771
-pos=<18720101,-5014280,15405990>, r=92055760
-pos=<19437849,105379399,13182198>, r=98308555
-pos=<24872430,207905077,10571812>, r=64706362
-pos=<-3900891,-17837213,48993241>, r=93912785
-pos=<4628129,84592380,46983368>, r=58530690
-pos=<-8500784,81354637,32649712>, r=82755023
-pos=<-21040160,59220604,49033361>, r=56776774
-pos=<-8569766,61063036,36874485>, r=58307563
-pos=<-61691190,46793583,48944174>, r=87121010
-pos=<97543945,38893710,37478590>, r=97942147
-pos=<-32468438,39994089,46330515>, r=67311544
-pos=<-50446554,34241799,50005562>, r=87366811
-pos=<80764682,64638264,33543385>, r=93011711
-pos=<-3359685,69242442,35795102>, r=62356521
-pos=<-7066785,39947970,1295266>, r=86991146
-pos=<19698314,74240211,86655363>, r=64426800
-pos=<-159219987,73286724,43691580>, r=80602293
-pos=<-10749338,68308806,69893809>, r=72181492
-pos=<4267160,31408568,28900755>, r=56591171
-pos=<29153070,55281220,-5024215>, r=70610604
-pos=<-31999404,51919732,53639756>, r=60788407
-pos=<20796365,7869106,-3949821>, r=96451932
-pos=<761180,51627157,44832255>, r=67227808
-pos=<-10078249,63600979,47754790>, r=51473612
-pos=<69320150,61417891,36283551>, r=75606574
-pos=<9296385,49261814,12112891>, r=53401849
-pos=<-7317543,43835002,26851576>, r=57798571
-pos=<-20323301,52285624,17357518>, r=80800563
-pos=<-32371707,7687445,53828813>, r=97361034
-pos=<-34553554,52364620,37734663>, r=74733323
-pos=<3375914,51345583,-24900541>, r=98419527
-pos=<31847704,77972619,20965665>, r=70006808
-pos=<-21691572,68915691,44331517>, r=71825213
-pos=<41498667,-13390854,46954930>, r=84705082
-pos=<7864562,60188918,15324170>, r=62549378
-pos=<-18338249,74638914,36374459>, r=82152065
-pos=<70679462,52058503,8730493>, r=95159593
-pos=<-37359151,56045979,34000785>, r=84954024
-pos=<3262220,66835742,37695863>, r=51427144
diff --git a/2018/d23/ex2/ex2.py b/2018/d23/ex2/ex2.py
deleted file mode 100755
index fc8d477..0000000
--- a/2018/d23/ex2/ex2.py
+++ /dev/null
@@ -1,71 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-from typing import NamedTuple
-
-import z3
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-    z: int
-
-
-class NanoBot(NamedTuple):
-    pos: Point
-    r: int
-
-
-def solve(input: str) -> int:
-    def parse_nanobot(input: str) -> NanoBot:
-        pos, r = input.split(", ")
-        pos = pos.removeprefix("pos=<").removesuffix(">")
-        r = r.removeprefix("r=")
-        return NanoBot(Point(*(int(n) for n in pos.split(","))), int(r))
-
-    def parse(input: list[str]) -> list[NanoBot]:
-        return [parse_nanobot(line) for line in input]
-
-    def dist(lhs: Point, rhs: Point) -> int:
-        return sum(abs(l - r) for l, r in zip(lhs, rhs))
-
-    def find_best(bots: list[NanoBot]) -> Point:
-        def z3_abs(n: z3.ArithRef) -> z3.ArithRef:
-            return z3.If(n > 0, n, -n)  # type: ignore
-
-        def z3_dist(lhs: tuple[z3.ArithRef, ...], rhs: Point) -> z3.ArithRef:
-            return sum(z3_abs(l - r) for l, r in zip(lhs, rhs))  # type: ignore
-
-        pos = tuple(z3.Int(c) for c in ("x", "y", "z"))
-
-        in_range = [z3.Int(f"in_range_{i}") for i in range(len(bots))]
-        total = z3.Int("total")
-        optimizer = z3.Optimize()
-
-        for i, bot in enumerate(bots):
-            optimizer.add(in_range[i] == (z3_dist(pos, bot.pos) <= bot.r))
-        optimizer.add(total == sum(in_range))
-
-        dist_to_origin = z3.Int("dist_to_origin")
-        optimizer.add(dist_to_origin == z3_dist(pos, Point(0, 0, 0)))
-
-        optimizer.maximize(total)
-        optimizer.minimize(dist_to_origin)
-
-        assert optimizer.check() == z3.sat  # Sanity check
-        model = optimizer.model()
-
-        return Point(*(map(lambda v: model.eval(v).as_long(), pos)))  # type: ignore
-
-    bots = parse(input.splitlines())
-    return dist(find_best(bots), Point(0, 0, 0))
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d23/ex2/input b/2018/d23/ex2/input
deleted file mode 100644
index 56ad959..0000000
--- a/2018/d23/ex2/input
+++ /dev/null
@@ -1,1000 +0,0 @@
-pos=<-26800153,54191419,14631486>, r=91909373
-pos=<2726122,52059927,-16784250>, r=91667585
-pos=<-1106302,78464933,37274659>, r=67846291
-pos=<-14676967,62367449,15230451>, r=87363344
-pos=<19283542,94968325,14626623>, r=86607330
-pos=<-1066104,66788622,7322926>, r=86081067
-pos=<-10327813,66959254,82168838>, r=82685423
-pos=<-12782412,37618518,45011118>, r=51320903
-pos=<-31606634,65230754,46027117>, r=76359614
-pos=<6733972,69543990,63956247>, r=49996039
-pos=<33854876,65000033,-14697092>, r=94704404
-pos=<-20114176,65135803,21306016>, r=89493234
-pos=<19966373,79368650,31671383>, r=53280220
-pos=<-44504614,61642083,47567346>, r=84128697
-pos=<-56959179,50805665,60035489>, r=91029871
-pos=<3833359,78337041,45411039>, r=54641822
-pos=<-9740514,69356208,46871803>, r=57774088
-pos=<79176394,59665612,42223492>, r=77771037
-pos=<-44885922,65011789,56458424>, r=89585685
-pos=<7188801,67430842,33413070>, r=52378146
-pos=<71981622,67198516,44650418>, r=75682568
-pos=<8471951,53949119,56588672>, r=90202717
-pos=<-21149813,53082243,44100402>, r=55681037
-pos=<61465091,51705189,24744707>, r=69577644
-pos=<-48427679,48875846,40504608>, r=82348095
-pos=<-16413220,64687719,48523359>, r=58127145
-pos=<41280618,18195971,22818620>, r=77036684
-pos=<24578568,12510958,32539456>, r=56298676
-pos=<10014943,77504976,13215099>, r=79824160
-pos=<32099889,55841549,33503165>, r=76599362
-pos=<-25934900,49453902,45457577>, r=55480521
-pos=<194428994,55319521,14326800>, r=72677431
-pos=<64044431,68921123,53558270>, r=65356299
-pos=<8611401,78916429,97105501>, r=90640047
-pos=<-3354425,50156520,49667979>, r=94822817
-pos=<86727740,49651294,37209042>, r=80322343
-pos=<-25482281,71458393,35135292>, r=87354550
-pos=<-56538221,50861580,45009103>, r=87939856
-pos=<25189303,52501081,55911181>, r=77913908
-pos=<-43747179,38521232,45927670>, r=80465847
-pos=<28680978,69986439,11874426>, r=67945167
-pos=<84354566,50011206,47992976>, r=67524866
-pos=<-44279563,46448363,48653641>, r=70345204
-pos=<-21033349,75676883,30863095>, r=91396305
-pos=<6132544,89170880,28377983>, r=80209515
-pos=<5838072,86938933,42122977>, r=64527115
-pos=<19427534,-8143678,45615709>, r=64268506
-pos=<14819968,60850429,35713119>, r=50675563
-pos=<2961664,78461502,47449899>, r=53599108
-pos=<-43363971,60346889,68132431>, r=95072805
-pos=<5444783,51735310,5801133>, r=66038720
-pos=<51608916,70339966,28851636>, r=74249476
-pos=<-39895346,56431956,29333441>, r=92543042
-pos=<-8613222,49276399,-6637951>, r=90076739
-pos=<68217090,56383884,49837668>, r=55915388
-pos=<-23031224,75798534,46219198>, r=78159777
-pos=<9982548,48837003,95009075>, r=57093080
-pos=<11783440,101197289,19256213>, r=95706918
-pos=<5523354,59300428,13433224>, r=65893184
-pos=<18607093,110399850,43651250>, r=73690807
-pos=<2119163,109847789,55948700>, r=86906887
-pos=<-47528630,71901316,54008364>, r=96667956
-pos=<68703448,66891625,43604620>, r=73142546
-pos=<-11507569,59058987,14159146>, r=81956819
-pos=<-20564060,52868253,42381061>, r=56600509
-pos=<7665464,86789990,47784126>, r=56889621
-pos=<-10994018,54755473,96964752>, r=85943807
-pos=<6628394,78144875,18768936>, r=78296745
-pos=<53248088,44523505,74094303>, r=57269778
-pos=<-31135955,38636131,22867651>, r=90799844
-pos=<-120483,94499416,39227452>, r=80941609
-pos=<43961851,57733220,13187610>, r=69659612
-pos=<-17145296,52725010,33700875>, r=61718656
-pos=<42398975,51457938,48534837>, r=50684428
-pos=<32989135,27108010,-11418788>, r=94070570
-pos=<-41281619,58529318,43713414>, r=81646835
-pos=<15676046,87664036,4474396>, r=93062768
-pos=<91288458,56341397,53854879>, r=80317303
-pos=<-13993707,51443582,19773222>, r=71213598
-pos=<-26166431,44282826,62488660>, r=63220434
-pos=<13760583,96393695,84713578>, r=90576204
-pos=<1399179,59472056,30865564>, r=52756738
-pos=<44353782,84240054,46022166>, r=63724044
-pos=<15223202,64424455,110031048>, r=82461868
-pos=<1831436,72155489,42370476>, r=53502789
-pos=<-3212782,90085872,69767179>, r=86295528
-pos=<2924551,84160632,22919443>, r=83865971
-pos=<-5277120,114055875,46749493>, r=98132946
-pos=<-44091102,60876760,34007702>, r=96509437
-pos=<9170763,60331193,24167167>, r=52542457
-pos=<4244629,37697533,19314365>, r=59911105
-pos=<66675928,53812019,35745466>, r=65894729
-pos=<17791554,54901626,27988883>, r=70869570
-pos=<20375935,50364328,-1807360>, r=57344942
-pos=<35621840,44634149,62393026>, r=70971770
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-pos=<-2486952,93852830,43206391>, r=78682547
-pos=<-6976590,84652374,38255612>, r=78922562
-pos=<-46046864,46754490,33404484>, r=87055750
-pos=<-63245875,56608859,54411844>, r=97496339
-pos=<-6260032,40730522,18355377>, r=68341942
-pos=<3655623,16746276,14754100>, r=86011583
-pos=<-57649658,45163153,49883183>, r=83770988
-pos=<-22365900,58543320,37312371>, r=69146057
-pos=<-2659753,66927786,1509912>, r=93626813
-pos=<78425267,61772308,31980105>, r=89370002
-pos=<-5792872,16390032,58448860>, r=66699788
-pos=<13502218,8011414,27690082>, r=71964284
-pos=<15662956,100883919,16652514>, r=94117725
-pos=<-27982823,58363346,52949414>, r=62525337
-pos=<-20076812,70016345,62303108>, r=75626559
-pos=<-12199165,51486079,37144420>, r=52090161
-pos=<65489525,59775056,39457247>, r=66959486
-pos=<28988834,97436890,34373844>, r=73204349
-pos=<-1298553,66305165,40338681>, r=52814190
-pos=<-23019264,62811828,14486567>, r=96893709
-pos=<-44473237,59840005,48299068>, r=81563585
-pos=<65710037,50685865,46684812>, r=50863207
-pos=<57876365,34367583,59137691>, r=57097333
-pos=<20857961,87367877,6687890>, r=85371636
-pos=<-23249164,63105443,28083736>, r=83820257
-pos=<8010982,43808377,-6072329>, r=75420546
-pos=<-7886851,96930290,46915687>, r=83450627
-pos=<-8708520,54903952,17476103>, r=71685597
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-pos=<17727546,33646899,25129>, r=69768414
-pos=<20687393,26123339,-19137626>, r=93494470
-pos=<-39609488,46799081,47127212>, r=66851286
-pos=<-3646983,98560734,33425164>, r=94331809
-pos=<3485853,69925120,65172287>, r=54841491
-pos=<-29443780,26940253,44037187>, r=79634058
-pos=<20619578,68574147,879108>, r=72624631
-pos=<14390618,49373291,47497883>, r=60638715
-pos=<-49845392,45000860,26785462>, r=99226638
-pos=<-59562465,34267964,48672891>, r=97789458
-pos=<-6346981,3527196,44016263>, r=79971123
-pos=<77743233,57733274,45709921>, r=70918710
-pos=<-31391791,51399490,49373815>, r=58966773
-pos=<62127122,61610757,33123005>, r=71766970
-pos=<57792255,89304415,42522193>, r=85726549
-pos=<14308919,64617042,-19077920>, r=94935250
-pos=<-13410494,57946640,43726015>, r=53180272
-pos=<257809,70469514,22447830>, r=73313444
-pos=<-2251250,52625718,83343235>, r=61449839
-pos=<-30774327,54414203,46773830>, r=63963857
-pos=<-15951324,68550112,43283893>, r=66767093
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-pos=<-36060360,50244768,38473986>, r=73380346
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-pos=<-11435156,79357239,31228700>, r=85113006
-pos=<-5678299,87489889,41626078>, r=77091270
-pos=<8739446,16648317,45543645>, r=50236327
-pos=<-19331613,64553140,58793421>, r=65907903
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-pos=<8941863,94910846,40459302>, r=71059048
-pos=<-40761819,59468622,49346148>, r=76433650
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-pos=<18538560,101071117,42535514>, r=65546302
-pos=<16679994,57387579,50086645>, r=77273767
-pos=<-40754986,49327339,35496344>, r=80135160
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-pos=<-33297966,74528415,50063208>, r=83312382
-pos=<-1516605,71770703,19476803>, r=79359669
-pos=<12665073,68014777,105798750>, r=84378075
-pos=<-32757819,49073817,52537506>, r=57598763
-pos=<-33519066,45859525,40007164>, r=68819947
-pos=<86082037,52568755,46592409>, r=73210472
-pos=<-71556811,52200916,50084496>, r=99222384
-pos=<-28139761,50073799,22611947>, r=81150858
-pos=<13541164,91369683,32775224>, r=70602520
-pos=<-16317236,56068753,54560328>, r=50175959
-pos=<-11331344,51596532,85248648>, r=71406256
-pos=<-5931204,91111332,52396432>, r=72668490
-pos=<90289920,65845518,39399462>, r=97888047
-pos=<-3984592,51498988,48025950>, r=62092105
-pos=<3555037,87300161,42451961>, r=66842347
-pos=<-24589823,38535355,42558945>, r=64663151
-pos=<8782570,35154521,12462985>, r=64767726
-pos=<-37716780,63787472,59928868>, r=84662993
-pos=<-44579937,59640123,30698580>, r=99070649
-pos=<-55181742,64393089,46049932>, r=99074084
-pos=<-18035862,49604454,33775573>, r=59413952
-pos=<-12016341,59298834,30659871>, r=66204470
-pos=<18780968,7353383,18991027>, r=76042336
-pos=<14767876,70957328,48457261>, r=68122955
-pos=<176257,53187561,-8060611>, r=86621097
-pos=<-40135229,51998675,40377712>, r=77305429
-pos=<-56334739,53536066,42888336>, r=92531638
-pos=<-11171826,46664881,16674320>, r=69000193
-pos=<-38417421,73491747,43836162>, r=93622256
-pos=<6291993,59441100,47457386>, r=56292961
-pos=<2205547,114639308,46447857>, r=91535176
-pos=<15765659,98173971,47159153>, r=60798366
-pos=<-675874,54765553,961325>, r=80029272
-pos=<-24007098,72054783,48164877>, r=73446429
-pos=<12661038,42714476,49527033>, r=59232028
-pos=<-9301220,78721935,43851305>, r=69721021
-pos=<18229397,66808011,-9490519>, r=83618304
-pos=<-2812165,50834360,-17192926>, r=96388788
-pos=<15273284,83684501,9255317>, r=84705079
-pos=<25313976,76586387,94916933>, r=75649821
-pos=<83496364,57748330,44686539>, r=77710636
-pos=<-36028080,64272970,53195701>, r=76726277
-pos=<261370,98959952,41421871>, r=82826175
-pos=<19961413,92709316,2188488>, r=96108590
-pos=<-27744282,54399903,52610801>, r=57984580
-pos=<-37764856,55482711,45273766>, r=73523082
-pos=<6152034,51895689,112513637>, r=81486818
-pos=<-3620749,75990775,50026613>, r=55134415
-pos=<23685113,52343937,-27788152>, r=84969616
-pos=<26593265,67955055,22317572>, r=53382829
-pos=<5862115,67320726,-7744908>, r=94752728
-pos=<44977728,77579884,40227014>, r=63483062
-pos=<74393904,54186069,86175718>, r=93588247
-pos=<-30553363,66174930,35164879>, r=87112949
-pos=<846033,79419918,17759962>, r=86363085
-pos=<-40099609,59337331,41208658>, r=83777471
-pos=<-55842569,51636231,46920841>, r=86107111
-pos=<17515213,55299696,-11816155>, r=75149814
-pos=<-37784825,39818181,75335333>, r=92149923
-pos=<-12420237,59829730,35273741>, r=62525397
-pos=<-32523179,51372964,46315822>, r=63129489
-pos=<-30806438,72779505,49545610>, r=79589491
-pos=<-23829845,50807049,41247927>, r=58938154
-pos=<4660069,-16707481,46183487>, r=87031514
-pos=<-19549685,80746152,49937584>, r=75907412
-pos=<-41545505,49666087,63429881>, r=77870992
-pos=<-9176964,70779012,38604780>, r=66900348
-pos=<19366593,75787464,24120212>, r=57849927
-pos=<-14750430,73417796,44573391>, r=69144019
-pos=<-31774450,57071943,28643145>, r=85752443
-pos=<-7965034,60706991,44164680>, r=50056547
-pos=<51214616,73858526,38715005>, r=67510288
-pos=<10251526,69070534,101419818>, r=83468358
-pos=<-4958688,64877199,5190665>, r=90194415
-pos=<-36841538,57544331,33454243>, r=86481108
-pos=<-18958623,55225437,48608264>, r=51125038
-pos=<-3280361,53433769,-10771980>, r=93035347
-pos=<12825120,52631982,48360699>, r=96729476
-pos=<-42088987,52508004,30671939>, r=89474612
-pos=<-35099129,67549370,49921294>, r=78276592
-pos=<-6571815,67176770,76063719>, r=73042022
-pos=<2416377,56619494,72699592>, r=50132248
-pos=<97064159,50626941,48020070>, r=80823113
-pos=<51272253,26380803,33326913>, r=68335442
-pos=<9342781,53889780,43080304>, r=95582105
-pos=<-1683556,74871475,26684699>, r=75419689
-pos=<8655690,7777306,47799320>, r=56935265
-pos=<17035815,109258089,18976615>, r=98795114
-pos=<24611871,66002331,-21792415>, r=93558729
-pos=<31447616,56064626,18586455>, r=50077924
-pos=<-5130339,-22115664,52509829>, r=98603762
-pos=<92722633,107452480,143663345>, r=61974061
-pos=<-70026018,75795232,-32798349>, r=88409720
-pos=<15619226,95376541,39039546>, r=66267023
-pos=<-1207251,78798343,57094406>, r=60329522
-pos=<2132042,10320424,31576336>, r=77138788
-pos=<82004303,49184026,53999531>, r=64020754
-pos=<63570907,37966831,10497262>, r=91877487
-pos=<12030100,85242976,32983936>, r=65778531
-pos=<47765320,67685594,9420635>, r=87182355
-pos=<-25084947,55874463,49173858>, r=57334709
-pos=<37219734,65474633,8637481>, r=75209281
-pos=<23232094,68810264,43970026>, r=51966614
-pos=<9716868,85176052,86308160>, r=84996869
-pos=<-15307394,68315425,79438673>, r=86291752
-pos=<-24943052,40142371,19904420>, r=86063831
-pos=<-62778009,55062212,48188208>, r=95201334
-pos=<15774791,78686937,10759637>, r=77701773
-pos=<2412046,90195442,37515010>, r=75817676
-pos=<15199931,75830351,93500764>, r=77360701
-pos=<9763716,49114305,-19374106>, r=84274068
-pos=<19644689,89449989,35579117>, r=59775441
-pos=<12395354,50087041,5657795>, r=57583144
-pos=<12068322,56646634,81855752>, r=49663605
-pos=<-22969583,59602246,34244087>, r=73876898
-pos=<7580461,91934347,45722448>, r=64180664
-pos=<-3560538,72561264,14695420>, r=86975860
-pos=<-45074040,57657932,48541858>, r=79739309
-pos=<-18398078,65110734,53891019>, r=60629463
-pos=<44224718,33095683,31706952>, r=56192890
-pos=<-10774711,48950748,26982525>, r=58292086
-pos=<2605308,68722337,27786615>, r=63879636
-pos=<-1339359,24098920,22336372>, r=76071679
-pos=<-4438041,72545226,25089955>, r=77442602
-pos=<-6246231,34031597,15411121>, r=77971312
-pos=<-23002804,57043932,81328580>, r=84605074
-pos=<35048807,50807135,49019441>, r=94840805
-pos=<1863063,64010732,24909086>, r=62787946
-pos=<76640525,56175554,25669192>, r=88299186
-pos=<34310529,75546211,13529288>, r=77479538
-pos=<46878403,67399215,21839672>, r=73590048
-pos=<-29566728,48860198,32191929>, r=71784211
-pos=<47336901,99330017,45502113>, r=82316912
-pos=<35783602,102518119,56209209>, r=73343452
-pos=<38055746,55924973,-6345047>, r=81477836
-pos=<8608899,54529451,44721618>, r=91048066
-pos=<-23322941,35425975,65556423>, r=72301694
-pos=<66175266,61309696,33060367>, r=75577292
-pos=<-2630171,77181433,44606184>, r=60754647
-pos=<15615476,103373392,46114344>, r=67192771
-pos=<18720101,-5014280,15405990>, r=92055760
-pos=<19437849,105379399,13182198>, r=98308555
-pos=<24872430,207905077,10571812>, r=64706362
-pos=<-3900891,-17837213,48993241>, r=93912785
-pos=<4628129,84592380,46983368>, r=58530690
-pos=<-8500784,81354637,32649712>, r=82755023
-pos=<-21040160,59220604,49033361>, r=56776774
-pos=<-8569766,61063036,36874485>, r=58307563
-pos=<-61691190,46793583,48944174>, r=87121010
-pos=<97543945,38893710,37478590>, r=97942147
-pos=<-32468438,39994089,46330515>, r=67311544
-pos=<-50446554,34241799,50005562>, r=87366811
-pos=<80764682,64638264,33543385>, r=93011711
-pos=<-3359685,69242442,35795102>, r=62356521
-pos=<-7066785,39947970,1295266>, r=86991146
-pos=<19698314,74240211,86655363>, r=64426800
-pos=<-159219987,73286724,43691580>, r=80602293
-pos=<-10749338,68308806,69893809>, r=72181492
-pos=<4267160,31408568,28900755>, r=56591171
-pos=<29153070,55281220,-5024215>, r=70610604
-pos=<-31999404,51919732,53639756>, r=60788407
-pos=<20796365,7869106,-3949821>, r=96451932
-pos=<761180,51627157,44832255>, r=67227808
-pos=<-10078249,63600979,47754790>, r=51473612
-pos=<69320150,61417891,36283551>, r=75606574
-pos=<9296385,49261814,12112891>, r=53401849
-pos=<-7317543,43835002,26851576>, r=57798571
-pos=<-20323301,52285624,17357518>, r=80800563
-pos=<-32371707,7687445,53828813>, r=97361034
-pos=<-34553554,52364620,37734663>, r=74733323
-pos=<3375914,51345583,-24900541>, r=98419527
-pos=<31847704,77972619,20965665>, r=70006808
-pos=<-21691572,68915691,44331517>, r=71825213
-pos=<41498667,-13390854,46954930>, r=84705082
-pos=<7864562,60188918,15324170>, r=62549378
-pos=<-18338249,74638914,36374459>, r=82152065
-pos=<70679462,52058503,8730493>, r=95159593
-pos=<-37359151,56045979,34000785>, r=84954024
-pos=<3262220,66835742,37695863>, r=51427144
diff --git a/2018/d24/ex1/ex1.py b/2018/d24/ex1/ex1.py
deleted file mode 100755
index 9a89a26..0000000
--- a/2018/d24/ex1/ex1.py
+++ /dev/null
@@ -1,188 +0,0 @@
-#!/usr/bin/env python
-
-import dataclasses
-import enum
-import sys
-
-
-@dataclasses.dataclass
-class Group:
-    units: int
-    hp: int
-    weaknesses: set[str]
-    immunities: set[str]
-    attack: int
-    attack_type: str
-    initiative: int
-
-    @classmethod
-    def from_raw(cls, input: str) -> "Group":
-        def split_sections(input: str) -> tuple[str, str, str]:
-            points_idx = input.index("hit points ")
-            with_idx = input.index(" with an attack")
-            return (
-                input[:points_idx].strip(),
-                input[points_idx:with_idx].removeprefix("(").removesuffix(")"),
-                input[with_idx:].strip(),
-            )
-
-        def parse_weak_immune(weak_immune: str) -> tuple[set[str], set[str]]:
-            weaknesses: set[str] = set()
-            immunities: set[str] = set()
-            for part in weak_immune.split("; "):
-                for start, values in (
-                    ("weak to ", weaknesses),
-                    ("immune to ", immunities),
-                ):
-                    if not part.startswith(start):
-                        continue
-                    values.update(part.removeprefix(start).split(", "))
-            return weaknesses, immunities
-
-        group_str, weak_immune, attack_str = split_sections(input)
-        group_list, attack_list = group_str.split(), attack_str.split()
-        weaknesses, immunities = parse_weak_immune(
-            weak_immune.removeprefix("hit points (")
-        )
-        return cls(
-            units=int(group_list[0]),
-            hp=int(group_list[4]),
-            weaknesses=weaknesses,
-            immunities=immunities,
-            attack=int(attack_list[5]),
-            attack_type=attack_list[6],
-            initiative=int(attack_list[10]),
-        )
-
-    @property
-    def alive(self) -> bool:
-        return self.units > 0
-
-    @property
-    def effective_power(self) -> int:
-        return self.units * self.attack
-
-    def potential_attack(self, ennemy: "Group") -> int:
-        multiplier = 1
-        if self.attack_type in ennemy.weaknesses:
-            multiplier = 2
-        if self.attack_type in ennemy.immunities:
-            multiplier = 0
-        return self.effective_power * multiplier
-
-
-class Army(enum.StrEnum):
-    INFECTION = "INFECTION"
-    IMMUNE = "IMMUNE"
-
-    def ennemy(self) -> "Army":
-        if self == Army.INFECTION:
-            return Army.IMMUNE
-        if self == Army.IMMUNE:
-            return Army.INFECTION
-        assert False  # Sanity check
-
-
-@dataclasses.dataclass
-class Armies:
-    immune: list[Group]
-    infection: list[Group]
-
-    @classmethod
-    def from_raw(cls, input: str) -> "Armies":
-        immune, infection = map(str.splitlines, input.split("\n\n"))
-        assert "Immune System:" == immune[0]  # Sanity check
-        assert "Infection:" == infection[0]  # Sanity check
-        return cls(
-            list(map(Group.from_raw, immune[1:])),
-            list(map(Group.from_raw, infection[1:])),
-        )
-
-    def army(self, army: Army) -> list[Group]:
-        if army == Army.IMMUNE:
-            return self.immune
-        if army == Army.INFECTION:
-            return self.infection
-        assert False  # Sanity check
-
-    def active_groups(self, army: Army) -> set[int]:
-        return {i for i, group in enumerate(self.army(army)) if group.alive}
-
-    def selection_phase(self) -> dict[tuple[Army, int], int]:
-        # Armies are sorted by decreasing power, initiative
-        def power_order(group: Group) -> tuple[int, int]:
-            return group.effective_power, group.initiative
-
-        # Targets are ordered in decreasing potential attack, power, initiative
-        def target_order(group: Group, ennemy: Group) -> tuple[int, int, int]:
-            return (
-                group.potential_attack(ennemy),
-                ennemy.effective_power,
-                ennemy.initiative,
-            )
-
-        res: dict[tuple[Army, int], int] = {}
-        for army in Army:
-            army_indices = sorted(
-                self.active_groups(army),
-                key=lambda i: power_order(self.army(army)[i]),
-                reverse=True,
-            )
-            ennemies = self.army(army.ennemy())
-            indices = set(self.active_groups(army.ennemy()))
-            for i in army_indices:
-                group = self.army(army)[i]
-                if not indices:
-                    break
-                target = max(indices, key=lambda j: target_order(group, ennemies[j]))
-                # Skip target if we cannot deal damage to it
-                if group.potential_attack(ennemies[target]) == 0:
-                    continue
-                res[(army, i)] = target
-                # Targets must be different for each attack
-                indices.remove(target)
-        return res
-
-    def attack_phase(self, targets: dict[tuple[Army, int], int]) -> None:
-        # Armies take turn by initiative, regardless of type
-        turn_order = sorted(
-            ((army, i) for army in Army for i in self.active_groups(army)),
-            key=lambda t: self.army(t[0])[t[1]].initiative,
-            reverse=True,
-        )
-        for army, i in turn_order:
-            # Empty armies do not fight
-            if not self.army(army)[i].alive:
-                continue
-            # Army must have a target selected
-            if (target := targets.get((army, i))) is None:
-                continue
-            attackers = self.army(army)[i]
-            defender = self.army(army.ennemy())[target]
-            damage = attackers.potential_attack(defender)
-            defender.units -= min(damage // defender.hp, defender.units)
-
-    def fight(self) -> None:
-        while self.active_groups(Army.IMMUNE) and self.active_groups(Army.INFECTION):
-            targets = self.selection_phase()
-            self.attack_phase(targets)
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> Armies:
-        return Armies.from_raw(input)
-
-    armies = parse(input)
-    armies.fight()
-    return sum(
-        group.units for army in (armies.immune, armies.infection) for group in army
-    )
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d24/ex1/input b/2018/d24/ex1/input
deleted file mode 100644
index 5ac4ea6..0000000
--- a/2018/d24/ex1/input
+++ /dev/null
@@ -1,23 +0,0 @@
-Immune System:
-916 units each with 3041 hit points (weak to cold, fire) with an attack that does 29 fire damage at initiative 13
-1959 units each with 7875 hit points (weak to cold; immune to slashing, bludgeoning) with an attack that does 38 radiation damage at initiative 20
-8933 units each with 5687 hit points with an attack that does 6 slashing damage at initiative 15
-938 units each with 8548 hit points with an attack that does 89 radiation damage at initiative 4
-1945 units each with 3360 hit points (immune to cold; weak to radiation) with an attack that does 16 cold damage at initiative 1
-2211 units each with 7794 hit points (weak to slashing) with an attack that does 30 fire damage at initiative 12
-24 units each with 3693 hit points with an attack that does 1502 fire damage at initiative 5
-2004 units each with 4141 hit points (immune to radiation) with an attack that does 18 slashing damage at initiative 19
-3862 units each with 3735 hit points (immune to bludgeoning, fire) with an attack that does 9 fire damage at initiative 10
-8831 units each with 3762 hit points (weak to radiation) with an attack that does 3 fire damage at initiative 7
-
-Infection:
-578 units each with 55836 hit points with an attack that does 154 radiation damage at initiative 9
-476 units each with 55907 hit points (weak to fire) with an attack that does 208 cold damage at initiative 18
-496 units each with 33203 hit points (weak to fire, radiation; immune to cold, bludgeoning) with an attack that does 116 slashing damage at initiative 14
-683 units each with 12889 hit points (weak to fire) with an attack that does 35 bludgeoning damage at initiative 11
-1093 units each with 29789 hit points (immune to cold, fire) with an attack that does 51 radiation damage at initiative 17
-2448 units each with 40566 hit points (immune to bludgeoning, fire; weak to cold) with an attack that does 25 slashing damage at initiative 16
-1229 units each with 6831 hit points (weak to fire, cold; immune to slashing) with an attack that does 8 bludgeoning damage at initiative 8
-3680 units each with 34240 hit points (immune to bludgeoning; weak to fire, cold) with an attack that does 17 radiation damage at initiative 3
-4523 units each with 9788 hit points (immune to bludgeoning, fire, slashing) with an attack that does 3 bludgeoning damage at initiative 6
-587 units each with 49714 hit points (weak to bludgeoning) with an attack that does 161 fire damage at initiative 2
diff --git a/2018/d24/ex2/ex2.py b/2018/d24/ex2/ex2.py
deleted file mode 100755
index 481adc2..0000000
--- a/2018/d24/ex2/ex2.py
+++ /dev/null
@@ -1,219 +0,0 @@
-#!/usr/bin/env python
-
-import copy
-import dataclasses
-import enum
-import sys
-
-
-@dataclasses.dataclass
-class Group:
-    units: int
-    hp: int
-    weaknesses: set[str]
-    immunities: set[str]
-    attack: int
-    attack_type: str
-    initiative: int
-
-    @classmethod
-    def from_raw(cls, input: str) -> "Group":
-        def split_sections(input: str) -> tuple[str, str, str]:
-            points_idx = input.index("hit points ")
-            with_idx = input.index(" with an attack")
-            return (
-                input[:points_idx].strip(),
-                input[points_idx:with_idx].removeprefix("(").removesuffix(")"),
-                input[with_idx:].strip(),
-            )
-
-        def parse_weak_immune(weak_immune: str) -> tuple[set[str], set[str]]:
-            weaknesses: set[str] = set()
-            immunities: set[str] = set()
-            for part in weak_immune.split("; "):
-                for start, values in (
-                    ("weak to ", weaknesses),
-                    ("immune to ", immunities),
-                ):
-                    if not part.startswith(start):
-                        continue
-                    values.update(part.removeprefix(start).split(", "))
-            return weaknesses, immunities
-
-        group_str, weak_immune, attack_str = split_sections(input)
-        group_list, attack_list = group_str.split(), attack_str.split()
-        weaknesses, immunities = parse_weak_immune(
-            weak_immune.removeprefix("hit points (")
-        )
-        return cls(
-            units=int(group_list[0]),
-            hp=int(group_list[4]),
-            weaknesses=weaknesses,
-            immunities=immunities,
-            attack=int(attack_list[5]),
-            attack_type=attack_list[6],
-            initiative=int(attack_list[10]),
-        )
-
-    @property
-    def alive(self) -> bool:
-        return self.units > 0
-
-    @property
-    def effective_power(self) -> int:
-        return self.units * self.attack
-
-    def potential_attack(self, ennemy: "Group") -> int:
-        multiplier = 1
-        if self.attack_type in ennemy.weaknesses:
-            multiplier = 2
-        if self.attack_type in ennemy.immunities:
-            multiplier = 0
-        return self.effective_power * multiplier
-
-
-class LoopError(Exception):
-    pass
-
-
-class Army(enum.StrEnum):
-    INFECTION = "INFECTION"
-    IMMUNE = "IMMUNE"
-
-    def ennemy(self) -> "Army":
-        if self == Army.INFECTION:
-            return Army.IMMUNE
-        if self == Army.IMMUNE:
-            return Army.INFECTION
-        assert False  # Sanity check
-
-
-@dataclasses.dataclass
-class Armies:
-    immune: list[Group]
-    infection: list[Group]
-
-    @classmethod
-    def from_raw(cls, input: str) -> "Armies":
-        immune, infection = map(str.splitlines, input.split("\n\n"))
-        assert "Immune System:" == immune[0]  # Sanity check
-        assert "Infection:" == infection[0]  # Sanity check
-        return cls(
-            list(map(Group.from_raw, immune[1:])),
-            list(map(Group.from_raw, infection[1:])),
-        )
-
-    def army(self, army: Army) -> list[Group]:
-        if army == Army.IMMUNE:
-            return self.immune
-        if army == Army.INFECTION:
-            return self.infection
-        assert False  # Sanity check
-
-    def active_groups(self, army: Army) -> set[int]:
-        return {i for i, group in enumerate(self.army(army)) if group.alive}
-
-    def selection_phase(self) -> dict[tuple[Army, int], int]:
-        # Armies are sorted by decreasing power, initiative
-        def power_order(group: Group) -> tuple[int, int]:
-            return group.effective_power, group.initiative
-
-        # Targets are ordered in decreasing potential attack, power, initiative
-        def target_order(group: Group, ennemy: Group) -> tuple[int, int, int]:
-            return (
-                group.potential_attack(ennemy),
-                ennemy.effective_power,
-                ennemy.initiative,
-            )
-
-        res: dict[tuple[Army, int], int] = {}
-        for army in Army:
-            army_indices = sorted(
-                self.active_groups(army),
-                key=lambda i: power_order(self.army(army)[i]),
-                reverse=True,
-            )
-            ennemies = self.army(army.ennemy())
-            indices = set(self.active_groups(army.ennemy()))
-            for i in army_indices:
-                group = self.army(army)[i]
-                if not indices:
-                    break
-                target = max(indices, key=lambda j: target_order(group, ennemies[j]))
-                # Skip target if we cannot deal damage to it
-                if group.potential_attack(ennemies[target]) == 0:
-                    continue
-                res[(army, i)] = target
-                # Targets must be different for each attack
-                indices.remove(target)
-        return res
-
-    def attack_phase(self, targets: dict[tuple[Army, int], int]) -> None:
-        # Armies take turn by initiative, regardless of type
-        turn_order = sorted(
-            ((army, i) for army in Army for i in self.active_groups(army)),
-            key=lambda t: self.army(t[0])[t[1]].initiative,
-            reverse=True,
-        )
-        any_kills = False
-        for army, i in turn_order:
-            # Empty armies do not fight
-            if not self.army(army)[i].alive:
-                continue
-            # Army must have a target selected
-            if (target := targets.get((army, i))) is None:
-                continue
-            attackers = self.army(army)[i]
-            defender = self.army(army.ennemy())[target]
-            damage = attackers.potential_attack(defender)
-            killed_units = min(damage // defender.hp, defender.units)
-            defender.units -= killed_units
-            # Detect if no kills were done to avoid loops
-            any_kills |= bool(killed_units)
-        # If no units were killed, we're about to enter an infinite loop
-        if not any_kills:
-            raise LoopError
-
-    def fight(self) -> None:
-        while self.active_groups(Army.IMMUNE) and self.active_groups(Army.INFECTION):
-            targets = self.selection_phase()
-            self.attack_phase(targets)
-
-
-def solve(input: str) -> int:
-    def parse(input: str) -> Armies:
-        return Armies.from_raw(input)
-
-    def apply_boost(armies: Armies, boost: int) -> int:
-        armies = copy.deepcopy(armies)
-        for group in armies.immune:
-            group.attack += boost
-        try:
-            armies.fight()
-        except LoopError:
-            return 0
-        return sum(group.units for group in armies.immune)
-
-    def bisect_boost(armies: Armies) -> int:
-        # Winning the fight feels like it should be monotonic
-        low, high = 0, 100000  # Probably good enough
-        while low < high:
-            mid = low + (high - low) // 2
-            if apply_boost(armies, mid) != 0:
-                high = mid
-            else:
-                low = mid + 1
-        # Wastefully re-run the fight to get the number of remaining units
-        return apply_boost(armies, low)
-
-    armies = parse(input)
-    return bisect_boost(armies)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d24/ex2/input b/2018/d24/ex2/input
deleted file mode 100644
index 5ac4ea6..0000000
--- a/2018/d24/ex2/input
+++ /dev/null
@@ -1,23 +0,0 @@
-Immune System:
-916 units each with 3041 hit points (weak to cold, fire) with an attack that does 29 fire damage at initiative 13
-1959 units each with 7875 hit points (weak to cold; immune to slashing, bludgeoning) with an attack that does 38 radiation damage at initiative 20
-8933 units each with 5687 hit points with an attack that does 6 slashing damage at initiative 15
-938 units each with 8548 hit points with an attack that does 89 radiation damage at initiative 4
-1945 units each with 3360 hit points (immune to cold; weak to radiation) with an attack that does 16 cold damage at initiative 1
-2211 units each with 7794 hit points (weak to slashing) with an attack that does 30 fire damage at initiative 12
-24 units each with 3693 hit points with an attack that does 1502 fire damage at initiative 5
-2004 units each with 4141 hit points (immune to radiation) with an attack that does 18 slashing damage at initiative 19
-3862 units each with 3735 hit points (immune to bludgeoning, fire) with an attack that does 9 fire damage at initiative 10
-8831 units each with 3762 hit points (weak to radiation) with an attack that does 3 fire damage at initiative 7
-
-Infection:
-578 units each with 55836 hit points with an attack that does 154 radiation damage at initiative 9
-476 units each with 55907 hit points (weak to fire) with an attack that does 208 cold damage at initiative 18
-496 units each with 33203 hit points (weak to fire, radiation; immune to cold, bludgeoning) with an attack that does 116 slashing damage at initiative 14
-683 units each with 12889 hit points (weak to fire) with an attack that does 35 bludgeoning damage at initiative 11
-1093 units each with 29789 hit points (immune to cold, fire) with an attack that does 51 radiation damage at initiative 17
-2448 units each with 40566 hit points (immune to bludgeoning, fire; weak to cold) with an attack that does 25 slashing damage at initiative 16
-1229 units each with 6831 hit points (weak to fire, cold; immune to slashing) with an attack that does 8 bludgeoning damage at initiative 8
-3680 units each with 34240 hit points (immune to bludgeoning; weak to fire, cold) with an attack that does 17 radiation damage at initiative 3
-4523 units each with 9788 hit points (immune to bludgeoning, fire, slashing) with an attack that does 3 bludgeoning damage at initiative 6
-587 units each with 49714 hit points (weak to bludgeoning) with an attack that does 161 fire damage at initiative 2
diff --git a/2018/d25/ex1/ex1.py b/2018/d25/ex1/ex1.py
deleted file mode 100755
index c24f172..0000000
--- a/2018/d25/ex1/ex1.py
+++ /dev/null
@@ -1,111 +0,0 @@
-#!/usr/bin/env python
-
-import collections
-import itertools
-import sys
-from collections.abc import Iterable
-from typing import Generic, Hashable, NamedTuple, TypeVar
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-    z: int
-    t: int
-
-
-class UnionFind:
-    _parent: list[int]
-    _rank: list[int]
-
-    def __init__(self, size: int):
-        # Each node is in its own set, making it its own parent...
-        self._parent = list(range(size))
-        # ... And its rank 0
-        self._rank = [0] * size
-
-    def find(self, elem: int) -> int:
-        while (parent := self._parent[elem]) != elem:
-            # Replace each parent link by a link to the grand-parent
-            elem, self._parent[elem] = parent, self._parent[parent]
-        return elem
-
-    def union(self, lhs: int, rhs: int) -> int:
-        lhs = self.find(lhs)
-        rhs = self.find(rhs)
-        # Bail out early if they already belong to the same set
-        if lhs == rhs:
-            return lhs
-        # Always keep `lhs` as the taller tree
-        if self._rank[lhs] < self._rank[rhs]:
-            lhs, rhs = rhs, lhs
-        # Merge the smaller tree into the taller one
-        self._parent[rhs] = lhs
-        # Update the rank when merging trees of approximately the same size
-        if self._rank[lhs] == self._rank[rhs]:
-            self._rank[lhs] += 1
-        return lhs
-
-    def sets(self) -> dict[int, set[int]]:
-        res: dict[int, set[int]] = collections.defaultdict(set)
-        for elem in range(len(self._parent)):
-            res[self.find(elem)].add(elem)
-        return dict(res)
-
-
-# PEP 695 still not supported by MyPy...
-T = TypeVar("T", bound=Hashable)
-
-
-class DisjointSet(Generic[T]):
-    _values: list[T]
-    _to_index: dict[T, int]
-    _sets: UnionFind
-
-    def __init__(self, values: Iterable[T]) -> None:
-        self._values = list(values)
-        self._to_index = {v: i for i, v in enumerate(self._values)}
-        self._sets = UnionFind(len(self._values))
-
-    def find(self, elem: T) -> T:
-        return self._values[self._sets.find(self._to_index[elem])]
-
-    def union(self, lhs: T, rhs: T) -> T:
-        return self._values[self._sets.union(self._to_index[lhs], self._to_index[rhs])]
-
-    def sets(self) -> dict[T, set[T]]:
-        sets = self._sets.sets()
-        return {
-            self._values[r]: {self._values[i] for i in values}
-            for r, values in sets.items()
-        }
-
-
-def solve(input: str) -> int:
-    def parse(input: list[str]) -> list[Point]:
-        return [Point(*map(int, line.split(","))) for line in input]
-
-    def dist(lhs: Point, rhs: Point) -> int:
-        return sum(abs(l - r) for l, r in zip(lhs, rhs))
-
-    def count_constellations(points: list[Point]) -> int:
-        sets = DisjointSet(points)
-
-        for a, b in itertools.combinations(points, 2):
-            if dist(a, b) > 3:
-                continue
-            sets.union(a, b)
-
-        return len(sets.sets())
-
-    points = parse(input.splitlines())
-    return count_constellations(points)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2018/d25/ex1/input b/2018/d25/ex1/input
deleted file mode 100644
index 4db8aa8..0000000
--- a/2018/d25/ex1/input
+++ /dev/null
@@ -1,1378 +0,0 @@
-0,6,-4,7
-5,4,0,-8
-0,1,1,-2
-7,-1,0,-2
--3,4,0,6
--3,-4,-2,1
--7,-5,-4,3
-0,-4,6,2
-2,-4,0,7
-7,-4,-7,-4
--7,-3,6,8
-0,-4,4,-6
--2,-1,-3,0
--4,7,-2,3
--3,0,-8,3
--2,-5,0,-4
-4,7,6,-8
--1,7,8,-3
--1,6,-8,8
--6,6,0,-3
--2,-7,-3,-8
-6,7,-2,-4
-7,-4,7,-4
-8,6,-3,-8
-0,-7,-2,-7
--3,0,-8,4
-7,-2,2,6
--5,1,8,-4
-0,-4,-7,5
-0,2,-8,1
--5,-1,-2,-8
--1,-2,-5,0
--5,6,0,5
-3,-8,1,-6
--5,-2,1,0
-0,-1,6,-3
--6,-5,-1,2
-2,6,5,-1
--7,-7,-7,0
-6,-6,-1,-6
-0,5,8,-7
-3,-4,5,3
--4,-6,6,-4
-3,2,2,-1
-5,0,-6,-2
--1,4,4,4
-0,8,6,7
-7,0,-5,-4
--8,-1,-1,7
--6,-7,2,-5
-8,-4,-3,-8
-2,-5,7,5
--3,7,7,0
-1,4,6,3
-4,5,3,5
--2,-6,-6,4
--3,2,-6,0
-5,0,3,3
--3,-1,2,1
-0,0,0,1
--1,2,3,5
--7,8,6,6
--4,8,4,0
-1,8,3,5
--3,-1,1,3
-0,4,7,6
-0,-1,2,-8
-1,7,-5,-2
--6,0,-7,6
--8,-7,-2,3
-0,5,5,-5
-1,-2,0,-5
-8,1,1,8
-3,-8,6,7
--8,-7,-3,0
-2,-5,-8,-2
-3,5,1,-7
-5,-5,8,-3
--8,3,-2,0
--5,-3,4,6
-5,-5,4,-2
--7,0,5,-5
-3,6,2,-1
-3,-6,1,-4
-5,2,-2,-2
--2,1,-4,-6
-0,-1,-8,-3
-0,-6,3,7
-7,4,2,7
-1,0,7,2
-4,-7,4,8
--6,8,6,-4
-0,5,6,-3
-7,-4,7,0
--3,-2,-8,-1
--5,0,6,0
-0,0,-3,8
--6,-1,1,-2
--4,2,-4,-3
--1,8,-7,-4
-5,3,0,8
--6,0,7,0
-5,-2,3,-8
-7,5,-3,-6
-0,5,3,1
--5,2,8,0
--1,6,3,-6
-0,8,3,0
-3,-4,1,-4
-8,8,1,4
--2,4,6,4
-7,0,7,-8
--7,2,8,1
-4,-8,-2,8
-8,1,-7,1
-0,2,2,-7
--1,-6,5,6
--2,-1,1,4
-7,-2,8,0
-2,2,3,4
-1,3,-4,8
-2,3,7,-8
-0,-8,4,5
-0,-4,-4,0
-8,-3,0,3
--4,3,2,8
--4,-4,-1,7
--5,-4,-7,5
-1,0,7,0
-0,-3,-2,7
-6,2,-7,6
-5,6,0,2
-1,5,-8,-3
-8,-7,6,5
--6,-1,-3,0
--4,-7,4,8
-0,-2,-4,0
-0,-1,5,4
-2,-8,-7,-8
-0,7,-2,-1
-3,-7,-5,-5
--5,0,0,-7
-3,2,7,7
-4,-7,-5,-8
-1,0,-7,2
-7,-1,2,0
--8,-3,7,5
-0,3,8,4
--6,-4,-5,-1
-0,6,-5,-1
-8,8,-7,8
-3,2,4,-4
--3,-6,-2,6
--6,6,2,-3
--4,-1,8,8
-0,1,8,4
--6,-8,-3,-5
-0,0,6,-1
-3,-5,-2,4
--4,0,0,-8
-1,-8,7,7
-2,-8,8,2
--3,1,-8,1
-0,2,-6,-7
--6,0,3,0
--7,7,6,-8
--4,-1,0,4
--1,2,2,0
-8,-3,8,-1
--4,6,0,3
-0,-6,-5,7
--8,6,-3,1
--3,7,3,-6
--7,-1,6,0
-0,0,-2,1
-0,0,-4,-2
-0,-8,-7,2
-0,-3,6,-3
--3,0,0,0
-0,6,0,-2
-0,4,3,-6
--7,-8,-2,1
--4,-8,-8,1
-2,-3,1,8
--1,0,4,-6
-3,-4,-3,-5
-0,-8,1,6
-3,3,-3,7
--5,-2,0,-6
-0,-2,-4,8
-6,-7,2,3
-4,-8,7,4
--2,2,0,-2
--6,-6,7,0
-6,2,-8,-4
-0,5,-4,5
-1,2,5,-7
--8,4,-3,0
--6,5,0,2
-7,-8,-1,-3
--6,3,-3,-3
-0,8,-7,7
--6,7,0,5
-4,-8,3,-7
--6,6,4,1
-2,-5,-5,4
-6,-8,-1,-5
-0,-1,-1,1
--1,-3,7,-5
--3,0,0,8
-3,4,2,5
--3,-8,4,4
-8,0,-5,7
-6,-6,5,-4
--2,6,8,5
-6,-4,8,-5
-1,2,-2,7
-1,8,7,-2
--6,-1,-1,5
-7,2,3,5
-6,-3,-8,-2
-1,-2,5,-1
--2,7,-2,-6
--2,-2,7,0
-2,-1,-4,3
--4,-7,3,8
--8,-6,-1,-8
-8,-6,8,5
--7,-8,-2,0
-0,4,4,1
-6,8,3,0
--4,-7,3,-4
-0,-7,0,-8
-0,-2,-2,-3
--1,0,-6,-6
--2,1,-2,5
--7,5,-7,6
-3,8,-2,-2
--7,7,1,-3
--8,0,-2,-2
--8,-5,1,7
-3,-8,-5,-2
-5,4,-8,1
-2,-6,0,1
--4,-2,5,-7
-1,-8,-2,4
--7,-3,-4,8
--3,1,7,2
-1,0,-2,-1
--7,-8,3,-5
--3,-7,8,-1
--2,-4,-3,4
--4,2,5,4
-8,-4,-1,-5
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-0,-1,-8,-8
--4,6,-8,8
-1,1,-3,5
-1,3,-6,4
--8,-5,-1,-4
-8,-3,-8,4
-1,8,4,0
-7,2,3,1
-0,-7,-6,7
--5,3,-2,-1
-8,-1,-2,4
-0,5,-2,-8
-0,-7,2,-5
--8,3,-5,-5
--5,-4,2,7
-0,2,-3,-4
-0,-8,8,-8
-8,3,5,0
-4,-2,1,0
-3,1,8,-3
-8,-1,1,-5
-4,0,0,-3
-8,-5,4,-5
-3,3,6,-1
-6,-8,6,8
--2,-4,1,6
--8,-3,5,6
-2,6,6,-7
--8,-2,5,-8
--7,-1,-1,-7
-2,-5,8,-2
-1,-2,1,2
-2,-5,-5,-6
-8,1,-8,-3
--1,8,-6,-2
-1,-1,7,0
--6,-2,-3,0
--2,-1,2,-4
--2,-4,7,-6
--4,8,1,6
-0,-7,-6,8
-7,-6,-2,-8
-2,7,-2,5
-4,-8,-4,7
-4,5,0,1
-8,-5,-7,-4
--7,0,2,3
--1,0,-4,7
--5,8,-8,1
--3,-4,-5,2
--1,3,-1,8
-5,-6,7,-8
-8,-6,4,-5
-4,-5,5,5
--5,-3,1,0
--7,2,5,4
-3,-7,4,-5
--1,-4,-3,8
--2,3,0,-2
--1,1,0,4
--6,-2,8,7
--3,-3,-7,-7
-0,7,5,-6
-8,5,-6,-2
-0,-4,2,-3
--4,7,6,-6
-0,-5,2,-4
-4,7,-6,1
-5,0,-6,6
-6,0,-1,-2
--6,7,-8,8
-0,-7,5,8
--6,-1,-2,5
-1,-6,4,-7
--1,-7,3,8
--7,-8,-8,8
-2,-8,-1,0
-4,-7,4,7
--8,0,-6,4
-5,-7,-3,-5
--2,-1,1,0
--1,-1,2,-5
-4,4,-1,-1
-4,1,-7,-5
-2,-8,7,3
-0,7,-7,-3
-6,-8,5,4
-2,-7,-5,0
-7,3,6,5
--6,0,0,1
-3,5,7,0
-4,0,1,-4
-2,-7,-7,0
--5,-4,-8,-5
-2,1,-1,-1
-6,6,3,3
-3,-3,-2,4
--8,-2,0,2
--1,-4,8,8
-7,-2,3,8
-0,6,-8,4
--8,-1,6,-7
-7,7,-2,7
-4,0,-8,2
-3,6,-7,0
-1,1,-4,6
-4,0,2,-6
-1,6,4,0
-3,3,7,2
-5,6,4,0
--4,0,-4,3
--8,6,-2,3
--4,0,3,0
--4,-5,-2,7
--5,-6,0,-2
--5,2,3,6
-1,-4,-6,0
-4,-2,7,-8
--1,5,-4,-3
-7,4,1,0
-8,4,1,6
-5,-6,7,0
--1,4,8,4
-6,5,2,-5
-4,-3,7,-1
--5,2,-3,5
-5,4,4,1
--7,-6,2,-6
-2,2,-1,-8
--6,5,4,7
-8,2,5,2
-5,-5,-8,5
-7,8,-4,-6
--5,5,-8,-7
-4,-8,-5,3
-0,-4,6,4
--8,-7,6,-7
-7,-8,0,-7
-7,-1,4,-3
--1,7,-5,-5
-0,-5,7,0
--1,0,-5,-5
--3,-5,-5,6
-1,-8,-1,7
-1,0,4,3
-5,2,-7,0
-0,6,2,4
-1,0,-2,8
--6,8,4,-3
--7,-5,-1,-4
-0,0,1,5
-1,-2,-3,-3
--6,0,-3,6
-5,8,5,5
--6,-8,-1,-6
-2,-8,-3,2
-8,-6,1,-1
-5,7,0,-8
--1,3,-4,-3
-0,-5,4,-2
-0,5,-4,-2
-0,1,6,-7
--7,7,7,-7
-7,-8,0,5
--4,0,4,-7
-4,-8,3,-1
--5,-7,0,5
--4,-1,-1,-7
--7,6,6,-5
-2,0,-8,5
-4,4,3,3
--5,0,8,-7
-4,3,-4,1
-8,-6,-3,-2
--6,6,-5,2
-0,7,-2,-5
--3,1,8,1
-8,-5,-5,8
--6,0,-2,3
-3,0,1,1
--5,-1,4,-4
-3,-1,6,0
--6,7,-4,2
-4,2,-7,3
--3,-8,6,-1
--6,-7,-5,-4
--2,5,2,-5
-3,1,-8,-7
-4,2,0,4
-0,5,-7,3
-0,0,-5,-3
-6,0,-6,0
--1,-4,0,-5
--5,-6,7,-6
--8,4,3,0
-3,5,0,-4
-0,4,8,8
--7,2,-6,0
--6,-3,7,0
--6,8,2,-8
--6,-2,6,-7
-8,-3,2,-4
-8,-7,6,2
-8,0,-6,-2
-0,5,-3,-5
-0,8,4,5
-5,8,0,-5
--1,-2,-8,7
-0,8,2,-6
--1,4,-1,-4
-6,2,0,8
-6,-3,1,-6
-5,-1,4,-2
-3,4,-7,-7
--2,-3,0,2
--4,6,1,-1
--8,-2,8,6
-5,5,-8,0
--3,2,6,7
--5,0,1,-6
-8,-8,3,-2
-0,7,-4,0
--8,6,-2,7
--6,5,-8,1
--1,-4,7,4
-0,-2,-1,-5
-0,-4,-1,-7
-5,0,-5,6
-1,8,0,-3
-4,7,1,0
-0,-4,2,-8
-3,8,-2,-7
-3,4,0,-6
-8,-6,0,8
-0,8,-7,8
--8,6,8,7
-3,7,2,-7
--2,-1,-2,0
-0,-1,0,-8
-0,-8,-4,4
-7,-6,-3,0
-6,-8,5,-7
--6,-3,0,-1
-1,-2,-3,-6
--3,-2,-7,-3
-0,-7,-8,3
--6,-3,-1,2
--4,8,2,-8
--7,-2,2,1
-6,0,7,-2
--3,-1,-6,1
-0,5,2,-5
-0,0,4,-8
--1,-1,7,4
-6,3,3,-6
-0,5,2,6
--8,-8,1,-7
--1,-4,-1,7
-0,5,-8,-5
-1,-4,-7,-6
-3,4,6,-4
-1,-5,7,7
-2,4,-1,6
-4,0,8,1
--4,0,8,0
-0,5,8,3
-3,-2,-6,4
-3,-5,-6,-6
-6,-2,2,-6
--6,0,2,-4
--3,5,0,0
--3,5,-1,-4
--8,-8,6,2
-0,-6,-2,5
--8,-6,-3,3
-2,8,0,7
--7,-8,5,-3
--7,-6,6,-3
-2,2,4,0
-5,-7,3,4
-2,-5,6,-6
--4,4,-7,7
--2,-4,1,8
--2,0,8,7
-4,-5,2,0
--3,-3,0,5
-0,-8,1,4
-4,4,4,-5
--4,5,8,7
-6,-3,-4,2
--5,1,0,-8
--6,2,5,-5
-1,0,-5,8
-8,8,-8,5
-2,-2,7,8
--1,-8,5,-3
-7,7,-8,3
-3,4,1,2
-5,3,6,8
--5,-7,-8,2
--3,4,8,-8
-4,0,8,0
-7,-8,4,2
-6,6,-8,5
--4,7,-5,-1
--1,2,3,-2
-1,0,-8,1
diff --git a/2018/d25/ex2/ex2.py b/2018/d25/ex2/ex2.py
deleted file mode 100755
index 918e0ec..0000000
--- a/2018/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/2018/d25/ex2/input b/2018/d25/ex2/input
deleted file mode 100644
index 4db8aa8..0000000
--- a/2018/d25/ex2/input
+++ /dev/null
@@ -1,1378 +0,0 @@
-0,6,-4,7
-5,4,0,-8
-0,1,1,-2
-7,-1,0,-2
--3,4,0,6
--3,-4,-2,1
--7,-5,-4,3
-0,-4,6,2
-2,-4,0,7
-7,-4,-7,-4
--7,-3,6,8
-0,-4,4,-6
--2,-1,-3,0
--4,7,-2,3
--3,0,-8,3
--2,-5,0,-4
-4,7,6,-8
--1,7,8,-3
--1,6,-8,8
--6,6,0,-3
--2,-7,-3,-8
-6,7,-2,-4
-7,-4,7,-4
-8,6,-3,-8
-0,-7,-2,-7
--3,0,-8,4
-7,-2,2,6
--5,1,8,-4
-0,-4,-7,5
-0,2,-8,1
--5,-1,-2,-8
--1,-2,-5,0
--5,6,0,5
-3,-8,1,-6
--5,-2,1,0
-0,-1,6,-3
--6,-5,-1,2
-2,6,5,-1
--7,-7,-7,0
-6,-6,-1,-6
-0,5,8,-7
-3,-4,5,3
--4,-6,6,-4
-3,2,2,-1
-5,0,-6,-2
--1,4,4,4
-0,8,6,7
-7,0,-5,-4
--8,-1,-1,7
--6,-7,2,-5
-8,-4,-3,-8
-2,-5,7,5
--3,7,7,0
-1,4,6,3
-4,5,3,5
--2,-6,-6,4
--3,2,-6,0
-5,0,3,3
--3,-1,2,1
-0,0,0,1
--1,2,3,5
--7,8,6,6
--4,8,4,0
-1,8,3,5
--3,-1,1,3
-0,4,7,6
-0,-1,2,-8
-1,7,-5,-2
--6,0,-7,6
--8,-7,-2,3
-0,5,5,-5
-1,-2,0,-5
-8,1,1,8
-3,-8,6,7
--8,-7,-3,0
-2,-5,-8,-2
-3,5,1,-7
-5,-5,8,-3
--8,3,-2,0
--5,-3,4,6
-5,-5,4,-2
--7,0,5,-5
-3,6,2,-1
-3,-6,1,-4
-5,2,-2,-2
--2,1,-4,-6
-0,-1,-8,-3
-0,-6,3,7
-7,4,2,7
-1,0,7,2
-4,-7,4,8
--6,8,6,-4
-0,5,6,-3
-7,-4,7,0
--3,-2,-8,-1
--5,0,6,0
-0,0,-3,8
--6,-1,1,-2
--4,2,-4,-3
--1,8,-7,-4
-5,3,0,8
--6,0,7,0
-5,-2,3,-8
-7,5,-3,-6
-0,5,3,1
--5,2,8,0
--1,6,3,-6
-0,8,3,0
-3,-4,1,-4
-8,8,1,4
--2,4,6,4
-7,0,7,-8
--7,2,8,1
-4,-8,-2,8
-8,1,-7,1
-0,2,2,-7
--1,-6,5,6
--2,-1,1,4
-7,-2,8,0
-2,2,3,4
-1,3,-4,8
-2,3,7,-8
-0,-8,4,5
-0,-4,-4,0
-8,-3,0,3
--4,3,2,8
--4,-4,-1,7
--5,-4,-7,5
-1,0,7,0
-0,-3,-2,7
-6,2,-7,6
-5,6,0,2
-1,5,-8,-3
-8,-7,6,5
--6,-1,-3,0
--4,-7,4,8
-0,-2,-4,0
-0,-1,5,4
-2,-8,-7,-8
-0,7,-2,-1
-3,-7,-5,-5
--5,0,0,-7
-3,2,7,7
-4,-7,-5,-8
-1,0,-7,2
-7,-1,2,0
--8,-3,7,5
-0,3,8,4
--6,-4,-5,-1
-0,6,-5,-1
-8,8,-7,8
-3,2,4,-4
--3,-6,-2,6
--6,6,2,-3
--4,-1,8,8
-0,1,8,4
--6,-8,-3,-5
-0,0,6,-1
-3,-5,-2,4
--4,0,0,-8
-1,-8,7,7
-2,-8,8,2
--3,1,-8,1
-0,2,-6,-7
--6,0,3,0
--7,7,6,-8
--4,-1,0,4
--1,2,2,0
-8,-3,8,-1
--4,6,0,3
-0,-6,-5,7
--8,6,-3,1
--3,7,3,-6
--7,-1,6,0
-0,0,-2,1
-0,0,-4,-2
-0,-8,-7,2
-0,-3,6,-3
--3,0,0,0
-0,6,0,-2
-0,4,3,-6
--7,-8,-2,1
--4,-8,-8,1
-2,-3,1,8
--1,0,4,-6
-3,-4,-3,-5
-0,-8,1,6
-3,3,-3,7
--5,-2,0,-6
-0,-2,-4,8
-6,-7,2,3
-4,-8,7,4
--2,2,0,-2
--6,-6,7,0
-6,2,-8,-4
-0,5,-4,5
-1,2,5,-7
--8,4,-3,0
--6,5,0,2
-7,-8,-1,-3
--6,3,-3,-3
-0,8,-7,7
--6,7,0,5
-4,-8,3,-7
--6,6,4,1
-2,-5,-5,4
-6,-8,-1,-5
-0,-1,-1,1
--1,-3,7,-5
--3,0,0,8
-3,4,2,5
--3,-8,4,4
-8,0,-5,7
-6,-6,5,-4
--2,6,8,5
-6,-4,8,-5
-1,2,-2,7
-1,8,7,-2
--6,-1,-1,5
-7,2,3,5
-6,-3,-8,-2
-1,-2,5,-1
--2,7,-2,-6
--2,-2,7,0
-2,-1,-4,3
--4,-7,3,8
--8,-6,-1,-8
-8,-6,8,5
--7,-8,-2,0
-0,4,4,1
-6,8,3,0
--4,-7,3,-4
-0,-7,0,-8
-0,-2,-2,-3
--1,0,-6,-6
--2,1,-2,5
--7,5,-7,6
-3,8,-2,-2
--7,7,1,-3
--8,0,-2,-2
--8,-5,1,7
-3,-8,-5,-2
-5,4,-8,1
-2,-6,0,1
--4,-2,5,-7
-1,-8,-2,4
--7,-3,-4,8
--3,1,7,2
-1,0,-2,-1
--7,-8,3,-5
--3,-7,8,-1
--2,-4,-3,4
--4,2,5,4
-8,-4,-1,-5
-8,-4,-8,-3
--7,-8,3,-8
-0,-1,-4,5
--2,-1,4,0
--7,0,2,2
--6,-7,5,2
-0,8,3,-8
-2,-3,0,-2
--2,1,-8,-3
--5,7,2,5
-0,-6,0,3
--8,-1,-6,-5
-7,2,-6,1
-0,0,-5,-7
--1,0,5,0
-8,-8,3,-3
-3,5,6,-7
--2,6,-2,-6
-5,0,-5,2
-1,-1,6,-2
--1,2,6,-3
-3,3,-2,5
-1,-8,1,3
-6,-8,-2,5
-1,-5,5,-6
-6,-5,-1,-1
-7,-7,-3,-4
-3,1,6,-7
-6,1,2,-5
-7,-8,6,1
-3,-7,0,-1
--5,0,-1,-4
--2,-5,0,2
-5,4,0,1
--2,6,-3,-6
--4,8,0,4
-7,0,0,8
-8,1,-2,-3
-0,-5,5,2
--3,-4,-4,5
--5,5,5,-3
-8,-4,2,3
--5,4,-5,8
-6,-1,4,-6
--5,0,-5,-6
--6,-7,3,4
-0,2,-2,-3
-2,0,5,-1
-2,2,0,4
--8,5,-6,-3
--8,-2,4,-7
--6,2,0,6
--3,2,2,-6
--3,-1,6,7
-5,-1,4,7
--8,-2,-6,-3
--6,-5,6,-8
-0,3,6,7
-4,0,-8,4
-0,-8,6,-7
-4,3,1,1
-0,0,6,2
-0,-1,0,-1
--8,4,-8,8
--8,3,-7,-2
--3,-3,-7,0
-1,-5,2,-7
--5,8,-2,8
--8,2,-7,-2
-7,3,2,-3
-7,-7,-1,6
-0,-8,0,0
--2,-4,6,-7
-5,-1,4,-8
--4,6,-6,3
--6,4,4,5
-0,-5,7,4
-6,3,0,8
--1,-4,1,0
-0,-3,-8,-3
--6,2,-1,5
--1,0,-3,8
--3,-8,1,7
--2,2,0,2
--6,-8,-7,0
--6,-6,3,5
-8,-2,0,1
-1,-5,1,-3
-1,-5,-4,1
-5,8,3,5
-1,-3,6,4
-0,-6,-4,4
--6,3,4,3
--5,-5,-5,0
-1,4,-2,5
--5,0,8,-6
-5,0,2,4
-1,-5,-2,3
-2,-6,-4,0
--1,-6,6,4
-8,6,7,-7
-6,-5,4,-3
--7,4,2,6
--2,7,8,2
--8,-5,-2,-1
-5,3,-3,8
-0,-7,-8,-8
--8,8,-1,8
--1,7,3,0
--7,-2,6,-3
--8,0,0,-3
-8,-6,5,0
--8,-1,7,3
-2,5,2,5
-0,-3,-7,1
--3,7,2,-5
--5,0,-1,-3
--5,-7,0,0
--4,-3,-1,0
-1,4,7,4
-2,-3,-6,1
-8,4,3,5
--6,0,-3,0
-3,-6,6,-4
-6,-3,-8,2
-2,-7,4,7
-0,0,-6,-4
--3,2,8,3
--8,1,0,2
--2,-3,7,2
--4,-5,2,4
--2,-6,-1,4
--2,-7,5,4
-2,-1,-1,-3
--8,-2,-1,-7
-5,8,0,5
--2,-8,-8,-3
-2,-3,-1,5
--8,-1,-4,-8
-8,-6,-7,-1
-4,5,6,-2
-0,-2,-1,-3
-0,-6,8,7
-8,5,0,-2
--8,-1,3,8
--5,-1,-8,-6
-1,4,4,-3
--4,-2,8,6
--4,8,-7,2
-8,7,-6,-2
-3,-7,8,5
-2,0,4,3
--6,-7,-3,3
--2,-2,7,3
--6,5,1,0
--1,-4,0,-6
--2,-8,-5,5
--4,-3,5,-8
--5,6,-7,0
--4,-1,-3,7
-7,-8,-1,3
--7,-1,-2,-2
-7,-3,-6,1
-5,-5,4,-7
-4,-3,8,1
--6,1,-2,-4
-2,-7,-2,0
-0,1,-5,-6
--3,5,-4,0
-2,2,-1,4
-0,4,-4,-6
-6,3,-8,4
--2,0,1,-8
--6,-7,-1,5
--4,1,5,3
-3,1,3,2
--4,4,-3,5
-7,-7,2,2
--8,0,-2,3
--5,6,4,0
--7,-7,-7,8
-2,8,1,1
-7,-2,-6,-1
-2,0,-6,7
--5,5,-7,-6
-0,0,4,-6
-6,4,-6,0
-4,-5,1,-2
-0,-4,7,-2
-3,5,5,3
--1,-1,-1,3
-2,6,-3,-8
-1,-2,6,8
--1,-8,-6,-3
-5,0,4,-4
--1,6,3,2
--8,0,-5,-7
-3,4,-7,-3
--4,-1,5,-5
--6,-6,-7,6
--3,-7,5,-8
-7,-2,0,7
--1,6,0,-4
-1,7,1,-1
-4,6,-5,8
-6,0,-2,0
-1,-8,3,0
-8,7,7,2
--8,2,0,0
--1,8,4,-1
--5,5,7,-3
-8,5,7,-2
-0,-6,6,-1
--1,-1,3,1
-8,-1,6,0
--1,8,2,-8
-7,-3,-1,-8
-2,0,5,4
--4,6,-8,-2
-4,-6,0,-8
--3,-2,7,4
-4,-8,0,7
--8,7,-4,1
-5,-2,7,-6
-6,1,6,-2
--2,6,5,-6
-3,5,-4,7
-5,2,-6,-2
-0,-8,0,-6
--2,-1,-7,0
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