.     
            . ∆    
         . #.      
       ##.#.    .  
      ##.#.##  ....
     ##.....##∩...#
     #............ 
   #..##....# #.   
 #   #..X..#.#.. #.
  .###.###.## #....
  # .. #..#..... ..
  #.#.#### .#.##..#
  ##......#.#..#   
   #...##....# ..  
##  #..#....#..#.. 
#.# ## .###..#..###
 #. #.#.# #......# 
   ..#.## ###.. ..#