####### ############## #.....# .............# #.....# .......>....# +....|# ............# ###..## #### ..###....#..# #..####..#########'###### #...............#.....# ......'.....O.........#.....# ......#...............#.....# ......#...............'.....# ..... #...............#....## ..... #.........##...##....# .... #.........##...##....# .... #######...##....#....# ##...##....#....# ∆ #..........#....# #..........#....# ∆ #.........####### #....##...# ∆ #....###### ∆ ##...# #...# +...