#.#  ##.## ##. 
      ...###... ##.. 
   .#. .. #.....#x.. 
  ∆  ...... ........ 
    #... .#. ...#... 
..   #... ## X.# #.. 
#.#  ##.## ##. #  #. 
...###... ##...###.  
 ...#.....#.....#..  
 ...........x..... . 
   .#.....#.....#... 
    ##.X.###...## .. 
   ##.#.#5..#.### ## 
   #......#.....#    
 #..##..##..5..#.    
..  #....##.#....#   
   #..##. #.##..?.#  
  #.#.  ...###.......
 ..#..  #..   .#..###
 .. .#  #.#   ..#... 
        #.    #. #...
        ##     .. .#.