...#    
                  ...#    
                 #...#    
         ##      #...#    
         ...     #...#    
         ....    #...#    
         .....####...#####
       ∆∆........<........
         .................
         .....####.###### 
         ..(.  #...#      
   #.    ..    #.#####..  
  ##.    #######........  
###..#####.......#####.#  
#..........##....#        
..#..<..## ##.####        
.........###..#           
......a..$...##           
...<.oo....###            
......oS..##              
..........#         ∆     
............              
..........#..   ∆         
.........###...           
.##.....##∆ #..           
  ###....    ..