#..#         ..#     
      ....##..   #...      
       # #.#.#  ....       
    .#.##... .  ...        
     .# ##...#  ..## #.    
     .......#####..# .#   ≈
     #. #......#..#  .## ≈≈
     #.##..##.#.#.###..#≈≈≈
 ##  #.  #. .###.....#..≈X≈
 #..###.#.###..#......#..X≈
  . ..... ..# #....#.....≈≈
#.###.......# ##.#...#..#  
#   #..##...##.###.#.# #.  
   #..... .....  ####..    
    .. ....#....     #.#   
  ∩ .  ...... ..      ...  
 .. ##...# .#.         .#. 
 ..  .... ... .         # #
 .    .###.#