## # . ## .#. # .. ## #.#..# ## .# # # ∆ . #. ## .#. #. .#. #.. # .#. ##....# .#.. # #...##. ...#...#.# .. .. . . #..#... . . .#.. # #.#...#....#. . .. # .......##...# .....#..# ..##.X...# ## . . .#.#####....#..# . ...# ##.....##.#..# ...#.##.#.........### # .. _##..#..#....#X.# # #.#..####...X.#.# #(..##..#.....##...### ..... ...}#.........# ......#..#.##....###..# ... . #...#. ..#.# ..#.# .#.. #..# ..#..# ##### ...# .#..#....#.. ∆ .... .. .# ###. # .#..#. .. # . ..