#.               
  # .               
  ..#.      .## #   
  ...#.     ..#..   
  ##...#   #.#..    
  #..#..#  ...      
  ..§.#..##.#       
   #....#...##      
     #.#..X#.#      
    #.#.#....#      
    #######..#      
   ##.....#...x§§#  
   #.....#.##...§#  
   #. ......##...#  
.# .##..#.#.#.#.#.  
#..##....#.#..#...  
#... .......#..# #  
##..#.. #..#..#.∆   
 # ###.. .###.#    .
 #. ..#.#....##   ..