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