##         .#  
            .. ##.#       #.#  
            ...#...##    #. #  
            #....#..# ###.#.#  
              #.....###..# .#  
        ..   #....#..#. .#. #  
         .####... #.........## 
       .  .. # ####.v......#.. 
       .. ...####.#...v...#... 
         ...# .#.............# 
          . . # ##...##......# 
   .       .# #..##.X......#.# 
  #.        ##.##.#......#...# 
   ..##   #.#.#.#.........#... 
   . .    #.# ...##..v...##..#.
     #.. #  ....##...#.v.#  .. 
      #  .#.##...#..###..#     
     .#.. .##.# .#...#......#  
     #.....     ##.......#.#.# 
     # .. ..#    ....?....##   
  #. ..#.##...# #........#.    
  #  # #..##.   .##..#....#.   
#       ..#       ..###... #.  
.  #  .... .     ##.  ...#. .# 
#  #.  X#.                     
 # .. §. .#                    
  ≈ .  .   x#                  
 ≈   .. #   .