File day12-example.txt artifact e2d5f3 part of check-in 722424
initial state: #..#.#..##......###...### ...## => # ..#.. => # .#... => # .#.#. => # .#.## => # .##.. => # .#### => # #.#.# => # #.### => # ##.#. => # ##.## => # ###.. => # ###.# => # ####. => #