######......       
      ...[..............    
    .....................   
   .......................  
  ......................... 
 ........[.....r........... 
 .......................... 
 .>.........................
............<...............
..................s.........
###############....S......##
              ##.........## 
               #.........#  
               #.........#  
               #.........#  
               #.........   
               #........    
                  ...