..       
   .     .. .      
  . .    .    ..   
  . ...   .  .  ..#
  ##... # . . ##.  
  #.. ..#.  ..  .. 
 ... . .. ..... ...
  ......_..  ......
 ... ...... . ....#
  ......#... ......
 ......# #...###...
   ............... 
 ..... .. ..#. . ..
 .....##.. . . ∆.#.
  .....#..#..#.    
  .........#...... 
  ...##.. .###.. #.
  #.. ..##.. ....# 
   .##.# ..###..#. 
   ##..#.#..#.# #  
   #....#.....#    
   ##...#.##.#.#   
.## ##.###...# #   
#... ####..###     
 ....  #...#       
   #2.##..#.#      
     #...##..#     
    #..#..#.#.#    
  .}...#.......#   
...###.....##...#  
##   ....##..  #.  
     #.... ##.     
     .#.##    .    
     #