#           
                     
      . .. #         
       ..#.#         
    #  #N...         
    #N  .#.#         
  #   ..#. ##        
  #.####. ...###.#.. 
   #._### ........#  
    #....#..###..    
   #.. #. ...  . #.# 
  #..#..##_.#.. ..# .
#.#.. . ## . # ....  
 #.###..#....##....  
 ##..#.# .#.#..# .   
  #...##.......#     
   #....####..##     
  #..#..#∩.# ##      
  # #.#.N.###.       
    #.#...#  ...     
    . #.#........#   
   #.#.#.##.....#..  
   #..# .  .#.##. .  
   ### .#.  . #  .   
       # .  ...      
         .#  #