≈..  u. .S 
              ..#####. .
              xS4...r ..
 #   .         .4... 4# 
#.#  .#        xgr. S4  
 #.# #y     ####4K w###.
 .#.# .  ####..#x#x.....
 ....#.# #.....#.x#     
 #. #...##....#y..#     
 #..#..#..#.#....##     
    ....#.##......#     
   #.#.. #####....#     
  #.####..# ##..#.#     
 .. .. .. #..######     
 .##.#.###_.#. #        
    ...  ###.._#        
   .#.       #....      
 .. ..      ..  ..      
 . ..       #..  .#     
  #.         #.   .     
              ..