..      ..       
      #.###   .#       
       ..#.  ..        
        ...  .#        
         ..##.         
          ...#         
 .     . ##..##        
#.#  ##. #..#.#        
.. ###. .#....#        
  ..#......∩#####      
   .......#.*#..###    
    #......##..# .##   
    ##...#. ##.##*.#   
     ##_#### ###...##  
    ##..  ....#.###.#  
  .. .....##..*.# ##   
 ... .. .. ..#...#     
 ...#..... ##.#. #  .  
.      ..#..# #..#. #. 
#.#   #.# .# #.  .... .
..   #. .#.#...##......
      ....#.#. # #..#..
   .. .... .#..#  .#.#.
    #. ...#...##   ##. 
   .###...#..##      . 
     #..#....#         
     ##   # .≈         
        . ..≈#         
          .. .