... ...     
    .........    
    #... ...#    
    #... ...#    
..###... ...###..
 ......###...... 
  ......_......  
     #.....#     
     #_O<._#     
     #.O...#     
  ...o.._o.....  
 ......###o..... 
..###... ...###..
    #... ...#    
    #... ..o#    
    .........    
     ... ...