.#.... ...... ## . #.... .. ...# #...# #. ..# #.... #. ... #....#.###§# .#...##.#.# ## ...#....### ##...##.#xy###. ... #...#4.#..### ...#.##......§.# #..#..##.#.#.# # #... #..... ###. .###. # #....#.#.# . #..# . #.### # ..#....#4.. ## # # ## .# .##..# # #..#.## ..... ..# #. .##...#......###