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