.. # ...###... #.# ##.## ##.# ...# ...###... .#.....#.....#. .. ...... ........... #.....#.....#. .. #.. ###...###... . ##.## ##.## #.# .. ##...###...## .. ...#.....#.....#. . 3................ . .#.....#.....#... ##...###...###... ≈≈.∩...#X....#.....# #≈#...# #...###.. ## ##.# #.## #.# #.. ..# .. #.. ..# .≈. ... .#. .#.