##    ∆  .#      
.# ##. ##.  #.#.     
 ..#..# .. .....     
  #....  .##..###    
   #...∆##...F#.     
    #..##..#.#.###   
      #.x#§..#. ..   
      ##.F#§..##     
      #.##F.t..##    
     ##...###...#    
 ∆    .###..#..#.#   
     #.....§(### .#  
   . .#..t .#..#  #  
   ...###.#.### ..   
     #......####..#  
     #.#...##..# ... 
   .....###..#  # .. 
   #  .   .  .#.   # 
   .## .  .#...#.    
      ## .#... .#.   
       #.# .####.#   
       ## ##    .##t 
                    .
                  .