       X       
     XXFX0     
    XFXXXX0    
   XFXXXXXX0   
  XFXXXXXXXX0  
  XFXXXXXXXX0  
  XFXXXXXXXX0  
  XFXXXXXXXX0  
  XFXXXXXXXX0  
 XXFXXXXXXXX0X 
XXXXXXXXXXXXXXX
         X     
          XXX  
          XXX  
