...          
     ........       
     ...........    
      ........o     
      #.......#     
 ..   #.... o.#   . 
 ...###...  o.###.. 
.........###...o... 
 #........_.........
.......#....o#....  
 ..... #_.<._#      
 ....  #.....#      
 #.. ....._.....    
  .......###......  
   .###.O.  ..###.  
      #...  ..#     
      #...  ..#     
      ...   ...