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