. #.. ### .# #... ..# #.# #..# #.# #.## ... #.###...# #.. #.#.#.# # #..# #_...# ....#..##..#..... #....∩...# ...# ##....#.## ... #.#.#...# .. .....##.## . ..... .#. ..... #. .# ..#. #. .. .... . ..