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