.   .                                  
   ##                                  
                                       
                                       
 . .  .                                
     .#  #                             
      . .                              
      .  ##    ...                     
   # ##. .    ....                     
   .  .. ## #.u...           .         
  #   # #..    . #      # ###. ##      
    ..# #  .#.#  .#.   ##.#..##.       
     #    .. #   #..  ##.#...#. ###  ..
   #    .### #   #. . #...##..##..#....
  . ...    ..#     .#..#.#...#.#.....# 
  #.  # .u##.    #.  .#.#..#.#..#      
  . . #    ..#.##.#  #.#......u.#      
            #. .#.##  #.............#  
       ..#.####...#.###..#.#..#.#####  
         ..#. .#........#.####..#      
       .#..#. ....##.#.#..#   .##      
     ##  . ... u# ###....##  ###       
      .###. . # .#. .#....#            
        #..# # #. #...##. ..#          
       #     #...#.#....#..            
        . # #.. #.....#.###..          
        #.  #  ...#.####   ..#         
       ..# ..#.##. .        .#         
     .. .  .#.# ..#..                  
          # #  .###...                 
          .   ..   . .                 
             ..    #...                
            .##     ##..