.  
                         .   
      #..##       ##     ..  
      ....   #.    .#   #.#  
.     .........  . #   #. .  
.. ## #..##...#....# ##. ..# 
 #...##.. #..###.  # _#.. #  
  ...........#....#.#. .#    
    #... ............#  #    
      #..##...##..####. #    
     ##..##.2....#.. .# #    
   ###.......#..##... #.     
   #...............#.#...... 
   #.##..##......###.#  . ...
  ..#.#..##...##.# ## . ..##.
 ##. #.......#.#...  ... #   
  #  ####.#..∩#..##. ##.     
        #......#..# .. .#    
      #.......#.###    .#    
      #..##..###..           
     #.#. ....  #..          
     # . .#...   .##         
      . ..##..    #          
       ..  ..