                 RRRRRRRRR
               RRRRRRRRRRRRR
        RRRRRRRRRR      RRRRR
   RRRRRRRRRRRRRRRRRRRRRRRRRRR
 RRRRRRR  RRR         RRR RRRRRRRR
RRRRR    RR                 RRRRRRRRR
RRRR    RR     RRRRRRRR      RR RRRRRR
RRRR   R    RRRRRRRRRRRRRR   RR   RRRRR
RRRR   R  RRRRRRRRRRRRRRRRRR  R   RRRRR
RRRR     RRRRRRRRRRRRRRRRRRR  R   RRRR
 RRR     RRRRRRRRRRRRRRRRRRRR R   RRRR
  RRR    RRRRRRRRRRRRRRRRRRRR    RRRR
    RR   RRRRRRRRRRRRRRRRRRR    RRR
     RR   RRRRRRRRRRRRRRRRR    RRR
       RR   RRRRRRRRRRRRRR   RR
         R       RRRR      RR