# #.###.b # .... .## ##..# ##.. #.# #..###b# #..##..# #.#..## ####b#.## #####......# ###### ..####b..## . # #. ...# .#.......# #. ###..## ##.## ...#....# # #. .#.....#........#.# #. . #..#. #.....#.#.#..#.#.# # #.##.##.#....#..... . .... #. . .. .#..#..#. .. # . ......#. ...#.# . . ..#.##... .#### . . ..# .##.).. .. .. . ...##. .... .# .... . . #. # #. .# ∩ . .# . # # . #