#.           
   @.       #.#          
   #.#      #.#          
    .$     ##.########   
    #.  ####.........#   
    #?# #............#   
    #.. #............#   
∆    #.##.......W....#   
 ∆   #.?#............#   
     ##..............#   
      #..#'##'######..$. 
      #..#.##.#     ##...
     ##[........       ..
   ∆ #<##.###..#        .
     #.##..##..#         
     #.###.##...         
     #..  .. .##         
     ...  ..#            
     #... ...            
     #...                
     .....