## ####### .. ..######. .#.###.# # # #.# #.....#..#.....# .. . .. #.. ### #.####.# # ..###.. # ##.#......#.# # . #. . . # ###.##...... . # #. #.#.###.#.....##. .. . ... ##..###....# . # . .. ..##...#.....# #.. ##.#. ... #.##3.##..# #.# ##.....#.......... ## #.#.#...#.......... .# ..# #...#..##..##..## . ## # #.###.#....##..##..# . ..# .#... #.#.##....... ... . .. .. #.#.#..#....... .. #..#.#._. .#. #. #.###..##.. . ..... ###.. ##. # ._ # .# . ##. #..... ... #.#....# ##... .. .. # . . # . .# # ..# # #. . # #. # # . _ . # .#. ∆ . . # # ##