. # .# #.# .. .# . . #... ... #.#.. #.###### ...#### #......# ...... .. #......##......## . . ......4......... . #.#.###.#5##..### # #. #.#. ##....#..#.. #.. #...##....####.# # .#. .............#..## ..##.....##...##.#..# ##........## #...# ..#.#.####..##..## #. ## ..##..# # #.# #.... #......# ..## ##. . ##.... #..# # #. . . #.. . .#### . . # #....# .∩ #......# .≈ . #.. .# # . #. .... . . #..≈. #.