..           .#  
    ...       ##.. ##
     ..# ## ##.#..#..
      ..##.##.#..#.# 
   ## ##..#.#..# ..  
   #..#.#.#...##..#  
 .. .#.......#....#  
  . #.##..∩#......#  
   .#..#....#...##.  
   #...###..##..#    
   #.#.###..#_..#    
    #..#......#...   
    #............##  
 ....#...#..##..._#  
 ## #?...##.....##.. 
  ...#.##.#..... ....
..## ..  ###.#...# ##
    ...     .###..   
   ..##      .       
  hh.                
 .#..