/** simulate *r* */
#include <stdio.h>
unsigned int u[1000010] ;
int main(int argc, char *argv[]) {
   int pos = 1 ;
   int gen = 0 ;
   int isr = 0 ;
   u[0] = 5 ;
   while (gen < 32000000) {
      int len = 2 + gen / 32 ;
      int i, t ;
      unsigned int prev ;
      if (isr)
         printf("R\n") ;
      else
         printf("L\n") ;
      fflush(stdout) ;
      if (isr) {
         pos++ ;
         t = pos ;
      } else {
         t = pos - 1 ;
      }
      if (u[t >> 5] & (1 << (t & 31)))
         isr = ! isr ;
      prev = 0 ;
      for (i=0; i<len; i++) {
         unsigned int o = u[i] ;
         u[i] ^= (o << 1) | (prev >> 31) ;
         prev = o ;
      }
      u[pos >> 5] &= ~(1 << (pos & 31)) ;
      gen++ ;
   }
   return 0 ;
}