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