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