.#              
 .#..             
  ...#            
   #..#           
    #..           
    ##.##   ##  ≈ 
    #c..## ..#... 
    ###..##...###.
     #..#..###...#
     #.#..#...#   
    #.##.#4..##   
   ..# ##4###.#   
  #..###.....##   
   #  .4#.# #..#  
     ##4#.##.# .. 
     #..###.4#    
    #..# # .#     
    # ..#4.#      
 .......##.##     
 ..###.#  #.#     
 #   #####.#.#    
    ##...4#.#     
    #..# .  #     
     ..#.## #     
   . ##.....# #   
  .   ## . #.  #  
###    #. #..x.# .
       # .  .. .# 
#. .   .##4 ##    
   . # ###.. . . #
    #... . .