.....  ..   
    #...   .#   
.   #...  ..# { 
..###...  ..###.
 ......###......
   ....._...... 
     #.....#    
     #_.<._#    
     #..O..#    
   ....._...... 
 ......###......
.o###...  ..###.
.   #...  ..#   
    #...   .# { 
    .....  ..