### .. #. #.. . .. #.# .#..# ##.#### ... #####.....#. . # #...###... .#.. .. #.##. .. #.# #.# #. #..#...# #..#.#.. ##.## #... #..# #...##.#.. # . ... #...##...# ..#.# #.# ###...#...##.#... . ... ##..#...##..... .... ... .........###...#.. ## ##.#.. ##...#.#....## # #..# ....##...##...# ...###.#.#...#....## . . ..##..#.#...##.# ## ##.#.#........?.# # .######...#....... ## #..*.####.#.## #..### # #.. #.#. ∆ #### ∆