#.                
    ∆ .#               
       .##  ##         
        ..  .     .    
         .##.    ..    
      ####..##  ?##    
      #.....§##...#    
       #...§#.....#.   
  ##  #.#...4##....#   
##  .  ###.......#     
  . .###.#.....#...    
  # #..#......#.#....  
  ...##...#..####. #.  
  # .....#..#.#.# .    
  .###........###..#   
   .....#......##  #   
   ...#.....#.#.#      
  . .  #......#.#      
      #.#..##..#......#
      #..#.(.# ..##..#.
      #..#... # ...# ..
     ... #.#W #.#.##   
    .#  .###.... ...   
   . ....  #.  #  ..   
    ..       # .  .    
             .. #  #.