#. ... .#.# ######### ...## ....#...##..... .............# ......s......# .....lK......# .....##..##..# ..... #..##..# # #..##..# #..##..# ..##.<##..# #.. #..# ...# ..# ..##. #.# #. #.. .. ... ..# ∆##. ..# #.. ..∆ ## ... .. ## ##