# ... #. .. ∆ .### #.. ..# #.. ########.#### #..###### ............# #.......# #......## #....z<.# #<###...## ###..##............# #....# ##.# ..##.######.###....# ... ...... #......#.# ...##..##.. ......##.#.# o#.#. #.# #.# ###### #.# # ..#o∆.∆ .# #.# #.# .# a. . .# #. #.# # .. .z .. #.##########.#.# #.o............# #(o##[.......#.# #..##o########.# #..##o# .# . #..##.# #.# ∆ ..#.o##o#### #.# ...z...z.z.# #.# ..##.##)##o# #.# .o#...#.##.# #.# ##......##o#####.# ........##.zo....# .#....)#.......#.# ##........#..z{.# #####.........## #..#._.#..# #.........# ##...#....# #........# ##########