. . # . . .## .. # . . . .. . # . . # # ##.. ... . . ## . .. . . .## . .... # ### ..## #.. ..#.. # ##.####.#.# . # #.#. .. #.#..#...## #. . ..... ##.......#.. .. .. ... ..##.##....x#.# . . # # . ..# #.. .###..##..#... . . . ..#....##.#.......# ##...........# ..#.... # #.#. # .###......#.#. .# # . # ##.#..###.###... . # . . ..#...#..#.# .# .#.. .#. #....#. ...#.#. #∩ # .##..[ ........ ... #...#.# ......##### ##.. ... . ##.. . .# ...# . . ### #.. # .# # .## .#.#. ### # # #. §#§#§.#..# # . # ## . . ## ####