#                    
    .     .                
      .                    
       # .                 
          .   .            
     .  #       .          
       ..#### .   #        
      ##.#     #    ##     
    ...   ..###.#.....     
    # .#......##.   . # .  
     ...     #.# # ...#.   
      . .  .##.#. .. ...   
      ... ##....#.# ..     
     ..# .#. ..# ..##   #..
    #   ... ##..#....#.. # 
     # ..#..#.###.#.. .#   
    #### .#. ..###  .  .   
     ..#..#. #.........##  
   ##  . ##..#####.#.##..  
   #..#..#.#.###...# #  ..#
    #.....## #..#.#.     ##
    ##.#. ..........#      
    #...####.#..###..      
     ###......###   #      
     #.#.#.....#           
      #...##..##           
   ####...#..##            
..##....#...##             
...?...#.#.#.#             
......#..### .#            
. ..#......#               
..#..#####..#              
# #.#     #∩#              
  #.       #..             
  #         ..#            
             #.#           
              .#           
               #