##     ...     ##.
     .#.##   ..#    ... 
    ##.#..   #.# ###..  
     .#...## #.# ...#   
      ...#.######...   .
     ≈##.≈≈..#.4.x##....
     #≈≈≈≈.≈...#........
        #≈≈≈≈...#.#.####
      # ##≈....§#..#    
       .#..≈#..§#...#   
      #.....###.###.#   
      # .#... ###  ..   
       #.#..# ..#   .#  
       #.###.# #..  .#  
       #..4.#.#  ##     
       #.##..#          
.    #. #.####          
..   ## # .#.           
 ..##  #. ...#          
  #.... ..##  ...#      
.   . .#..  ##...#      
..   #.# .## . #.#      
 # ## ..## # . . #      
  #.. # ..#    #        
     . .# .... .#       
  #.# . .    ..# ..     
  # ##.. #. #  .  .     
  ..... . ....   ..     
 ##.#  # . ##.  .#      
  .  .   .  ..   .