∆         #........  
                ....    #........  
             .......#####........  
             #.........##........  
             #.........##........  
             #.........##........  
             #.........##........  
          ####...................  
          .............(.........  
             #........(.......###  
             #.##'###(........+    
         #####.##.###.........#    
         .......<...5w.#####+##   ∆
         .####.#..######           
             # #..#                
∆              #..#                
          ∆    #..#                
               ....                
               #...             ∆  
               .....               
                                   
                               ∆∆