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