...#             
   ###    ..#             
    .. ## ...             
     . . ...              
    ##. ...## ##          
    #..# . #.#.           
      #.... #.#           
       #...# .###         
   ##  #. #. ...#         
   #.  #.#### .#.         
  #.....#.##.### # #      
   . #..#...##  ##  .     
     ##... ###...#   .    
      # .##...### ##. ∆   
#    ###...####.##..      
.####  ##.#####.#.##   ## 
.#.....#.##..##....# #..#.
# ....#......#.....#.....#
.....  .......X..X........
 ..#.##.#......#.#.#.##...
..#.. ...##.##..#......   
 ... #...#.###....#####.. 
.#.##...##. ...#.##     #=
 . .........##.#.#        
#. ........  ..###        
       ..   .. .