. . # # # #.. .# ∩. # ###. . .. . . .. # ## ... .# # # .# # ##.##.#. #..# . # ##...# # .x. #...## #.# .. #.. .. ... #.##... #.. # #..#..#.### ###.###....#..# #....#...#....## #........ ..#.#. .......#.......# .....##.. ..##.#.# #...## .# .# .#. ...#..#.#..# .. .. #...#.# .### ###...# ##...# ##..###...# ##.##...# ##....# #.....x.%.# #...####..#... ....#.. .#... #..###.. # .# #.. .... .# ## ##.. . .#.