.     #                      
 .  .#  #$                       
 #.  .  ..      #                
 .    .  ..#                     
  ... .###.#   ... .             
  .§# .  .  ## ..#...            
#.   . . # .# ...... ##          
   #    . ..#.  .#.  .###        
  #.# . . ...#.. # ......        
#### .# .##...#.# ... .#         
       . #.##...   ....#         
    # ..  .## .#. ##..  #.#      
      # . ## ##.x##.### ..#      
     .# .    #.##.....# . #      
       #     ## # ..##.#.#       
                  #. .#..#       
                #. .#... #       
               #.#z# .#.##       
               #  .#.#..###     .
               ......#.##.#   h..
              .##....##...###..∩ 
             . #. .##.....#..#   
                ... ##.x#..#     
                ..  #......#     
               .#.#.....#..#     
                 . ..##. #.##    
                 .... #..##z##   
                 #..#..## #..#   
                 .. ... #..#.#   
                   .##  ######