. .. 
                .. .
            #.# ..  
            . .  .. 
            .. ... .
          ##.. ...  
 #        # .. #.#  
##∩#     ##. . [    
#...######.... .#   
   #...#..##...##   
   #......##..##    
   #...#..##.##     
   #.2#### ...      
   #....#    #      
   #.#.......       
   #.#####....      
   ..#              
   ###