..         #.  
     ..#     ##..   
       ..#  #....   
    ###...    ..    
    #.....#  # ###  
   .# .. ..##...5#  
   .    ..#..3  #.# 
   # #####.#....#   
   #.##.#......#    
# ##.#.....#...#    
 .#........#.##..#  
 ...#........#.. ...
   #..##...#. .#.#..
(  #..... ..#.##.. .
... .....#..#.# ... 
 .#...#...#####     
.#..##..#.#         
..........#         
..#...#...#         
 #.#.....##         
#.........#         
....####.##         
..#.   #3.#         
# ∩    #..#         
      #.###         
      #.            
      ..            
     ..#            
    .#.             
   #.#.             
   . ..