∆ ## # # . #### ..### .# #..##.... # .# ##x..# .#..## #.##.####..##.# #.#....#...#.#. ..X...#..Z####.#. #.##...##.......# .. #...# ..#..#.. .# #...##.##.. ..# .. ....#. .#.#..#.# .# .#.#..#..#... .. #.#.#.#... .#.# #..... ##.#.# # # ..#......