.#.         ...      
       . ...     .....   .. 
        #...   ......   ..  
    ..   # ..   ....### .## 
    #.#  ##.## ##.#. .##..  
    ...###...###.........   
     ...#.....#......#.∩#   
     . . . .........##.#    
       .#.....#........#    
   #.   ##...###..L.#..#    
    #.   ##.## ##.###..#    
   # .. ## ..###L....#.....#
   ..... ... .#....#.#.#.#.#
     ................#####  
  #. ...# ....#...$#..      
  #.#. ####. ..#####..#     
   #.... . #.#. ....##.     
    .... .##....   #  .     
   ...# .......#..#   ...   
  # . .#∩#.###.  ##         
  #...# #.##  .#            
 .##. #..#  # ..            
# .. . .#..#... .           
  #. ...##..  ..#.          
    ....  .#.. .. #         
    #.  . #.....            
 . ..   .# . ##.            
   ....#..  .               
     . # .. .               
       #.#                  
 . ... # . .                
   . .