#.                   
####. ...                  
 ..#  ...                  
 #...## .        .         
  #.. # #   ##...#  #      
  ## .#..    ..# # .#      
  #.#...###  #...#.       #
   # .....# ##...#.+    +. 
   ##. .#....#... .. ∆ .$  
     #..###.#....#    )#   
   #.. #.#.#..##.##+#.+.+  
 ...## #_.###.....4.3x.#∆  
 ..    #. .#.###.#..#.....#
 #    #..# #. #..#### #..+.
      ##.. .  #...      ...
       ## ##  ..###       .
             # .           
              ##∆          
      ∆