$ .# . .. .s # #. # #.s#.#. ##### .. .....#. ###.#^#..# .sssw###.#...... #ys#^#.s.s..# $ #s^s...s# ∆ ###### #..sss..#..# #####.#..# #....s#^.#(.#### #.#.#....# ####sy#^.#.....# #...#....# ....#.##....###########..##...## ∆y..#.###..#^.##..#.....#...#..## ##..## ##..##.....#....###......# ∆#.. #....#...#...####.......## ###..#.#.#..(..#..^.###..# #...######.#......#...#..# ####...#..####..#..##..###)# ##>#^.####<...#..#.).#....### ###..##>...##...#.##.###...## ##.##.......#....#######..#..# ###........#.....#..# . #.##.## ##.##....#..##..######... ###### #..^###..#..#..^.#.....## ##......#####..........# #......###....##..###.## ###..#.#.##....#...# #...###......##..## ∆ ##....##...#..#..# #......#..#..#.#..#... ##..[.##..##.###.##.... ##.#. ###### ###....# ####