∆ .. ... .#.## .....## . #......######.... .......rr.r...... .......o#####.... ..........ooo.. . ........######. .......K# ........## .........# .#....#..# #..#.#........ #.......###.... ......#.# #.. ......#.# . .... #.. ... #.. ... ##. #.......# # #.......# ##. #.......# ....### #.......## ....... #......... ....... #......... ......!##......... ............#..# #......#...#..## #<.....#.#.....# #......<.....#... #......####### ##. ....... #...### ### ∆