diff --git a/2018/d12/ex1/input b/2018/d12/ex1/input
new file mode 100644
index 0000000..e13929b
--- /dev/null
+++ b/2018/d12/ex1/input
@@ -0,0 +1,34 @@
+initial state: #.#.#..##.#....#.#.##..##.##..#..#...##....###..#......###.#..#.....#.###.#...#####.####...#####.#.#
+
+..#.. => .
+#...# => .
+.#... => #
+#.##. => .
+..#.# => #
+#.#.# => .
+###.. => #
+###.# => #
+..... => .
+....# => .
+.##.. => #
+##### => .
+####. => .
+..##. => .
+##.#. => #
+.#..# => #
+##..# => .
+.##.# => .
+.#### => #
+..### => .
+...## => #
+#..## => #
+#.... => .
+##.## => .
+#.#.. => .
+##... => .
+.#.## => #
+.###. => #
+...#. => .
+#.### => .
+#..#. => #
+.#.#. => .