.#.### #....### +......# #......# # #......# #. #.....# #.#####.....######. ∆#.#.......†(......... #......K..##.(....... ##+###(#####......... #...#...# #......... ∆#.>.#.b.# #......... #...#...# #......... #.>.#.<.# #......... #...#...# #......... #.>.#...# #......... #...#...# ##+###+## ∆∆