#                      
           #    . #             
            . .  .              
       .    .                   
       .        ## #  #.        
        . ... # #.  # # .       
               # #    .  #      
       ##.# # . .#..#.          
      #..#.## ..#.#..           
      #.. . #∩   .. .#          
        .. ..... ..#  #      #  
       #.#... .  .   .  .#      
       ## . #. ##.#.  ##...     
  #     . .....# #.. #.# .      
..# #### . #.#.##.##..#.        
 .....# ...# .#....#.. ..   #   
   ... ... #...#... . #... .    
.. ##.#.# .... .#.  # .# .# .  .
   ..#.#.#.......... ... #      
  ##. ..#. .####. . ....##      
   #. . ###.......   # .        
.####  ##..# ##..# .  # #       
 ...#.##..#      ###            
   ...#..###   #..       .      
   .#.#..5b#  ...       #.      
  ..#...##.# ..                 
   #.#.# #.#.#                  
  ..#.#.#. ..#                  
#..#.#........#                 
###.#### ..#......              
 ..#     .....#...              
##.      ..#......              
 .     .#..#....#.              
        #... ...#               
      # #  #   #.