. .# ...####. . .# .##.##...# .. . .. # #.. #... . # ... .. #...#.#. . .... # .......... # ..# #..#....#....# #.... # #.....##.#.# .. . . .##.#...#...## . ..#..# ...#..##.#.# . . .#.# ###..##.#.# ...... ... #..#...#.### ....#.......##.#..#...# .# . ...(...####XX.#....... .....##...........#.##.. . ... ........###### .#### # ≈####...# . #X.... # ≈.###..# ..≈ .#.# ≈. # .# ∩ .. #.