#         ∆      
.. .             
... .           .
 #..########  ..#
   #....## .  .# 
    #.G.##..G#   
    ###G#...#    
#     #.. ###    
#     ###. .#### 
 ## ## #.......##
  .##...  .......
  ..##.#. ....   
##. . ..# ...... 
 ..#.###... .... 
 ##....#.. ....  
    #. .#..#... .