.   
                         #.   
                        #.    
               #       #.     
               #.      .# #   
               #.#    #. . ## 
                ..# ##.#.#..  
                ##∩##..#..    
                #.#.#.#.##    
                 #.#.....#    
              ####..#..#*....#
               ..###.### .#.##
                #. .##    #   
               ###.#.#        
               #..##..#       
     #.       #.##..#.#       
      .#      #..#.#..#       
    .  .     #.#.##. ##       
     ..#.  ## ##.  #.         
       . ###....##  .#        
      ###.#.#.#.. #  #        
      #. #..#.##.#.           
      #   #.##  .# #          
     ### .  #   ##            
     #. ..#                   
     .#...#                   
      #. .##                  
      #....##                 
      #.#. .#                 
     #...#  . #               
.     .####  .#               
 . . #.#.... #