. # # .# # # # . # . # ## # # §§. # # . . .#. # . #.#.. . .. . . .# ....#.. . # ###.. #..# # .# . . .#. # . ..#.# # . ## . ..#..#..# .##. ..##. .. #... .## .. ∆ #...# #. ..## # .. ###.##.### ...#...## .# .....#.##...#.####..# . ##..#.###.. .#.#..# #....## .. .#..# #.#..### .∩...#.# .#.....# #..#.# ... #xX.##.# .## # .. #.#..# ##.. # # ...#### #### ...# .#