∆ .. #..# .##..## # .....# #. .... ## +.. ..####.# #...###'##...##### #..<.........#...# #................. #.........la...... #...##..##Oa##.... ∆#... #####..##... #.. #............# #( #......##....# #.∆ #......####### #............# #............# ∆ #..######...#### #####..##...#..# #..............# ∆ +..[...........# #...........)..# #..##..##......# #..######.....## #.......######## +.......# ∆ #.......# #..##...# #.. #### ... ....