...... #..... ..... #.#..... ##....... ######....#.####.. ..... #.#................###... ............#.......##.### ..##........#.....#......# ∆ #.................#......# #.##.....................# ∆ #.##.......#a#...........# #.#........#O#)#.........# #.†........#.#g#.##......# #.....#........#..O..##......### #).##..#.#..#####...####....†...# .. #..#.#†###...<.....#......#.# #..#.#.# #.........#........# #......###..<..........#..#### ###...............##...####.#..# #....#.......##...#...## #....## ..#......##......##..## ##....# .......†.##.###......# ###.#.# ............##..## #.# #...### ..........#.....####.# ##.### ........###...#....#.#####..# .....................##....## ........#............##.#### ........#............##.# #.#.#####...............# #.#. ##..........##### . ##...##...## . #.######## #.# ###