. #   # .##    
     . .. v....   .
     .... ....   ..
  #.. #..##..#  .# 
    .##..#...##    
    ...........    
 #### ##..vv.#     
  ...#......# .#.  
####...#...#.#...  
 .....#... .#..##  
# .......####.#..  
 .#.#...####....## 
  .##.#......###   
  . ##.#...v...#.. 
   ###...#v##...#  
  ..## #.#.....##  
  .... ###...#.§#  
         .###...   
        ..   .#.#  
       #.#    . #  
       ..      #   
      ..#          
     ..#