.. #. ... #. ## .... ... .. #. ..##..#. ...# ....#.# ##.....### #.###..#.###.#.. .#.# ...........#..##.#... #...#.#.......#.. #.##x..#.# .#... # #..##. # # . # ###x......## . ####.....# . ..###.#..##...# . . #..... .##.# # . # ...# # #..##...### .. . .. #.....##_...#... ...... ...#..#. .# #.## #.##..x... ...# ## #.#.###.. .# #.#...#.. # # #.. ..# # #.##..# ####X.#.##.. . . #.... ..# #. . # # # ..#....# ###. . #..?##..#. # #. #x#.# #... . . .# . ## # .#. . .. . #∩.. ... . # #.. . . ...