. #####.. ....... .....# .....+ ..#+#####.....# ........<.....# #............+ #....l....(..# #............# #.....?........ ##+##....#+##.. #....+ . #....# #....# ∆ #..... #..... #..... #>.... +.$...#####+#. ##.oo.o........ ......o........ .....o.<....... ............... .......#######. ....... ....... ######. ∆.. .#