∆    
                
      ∆         
       ∆        
      ∆∆        
                
      #######   
      #<....#   
      #..†..+   
      #.....#  ∆
 ∆    #.....#   
  ∆   #.S..##   
......w........ 
.........#.#...#
.........#......
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.........#  ....
...#######   ## 
...