#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <bitset>
#include <stdio.h>
#include <math.h>
using namespace std;
typedef std::vector<int> vi;
typedef std::vector<pair<int, int> > vii;
#define FOR(l) for(vi::iterator it=l.begin();it!=l.end();it++)
#define FOR_L(l, s, e) for(vi::iterator it=l.begin()+s;it!=l.end()-e;it++)
 
//----------Main source code -----------------//
int main() {
	int m,n;
	double num;
	while(scanf("%d %d", &m, &n)!=EOF&&(m!=1||n!=1)){
		num=(double)m/n;
		string o="";
		double mid=1;
		int fn, fd, ln, ld, mn=1, md=1;
		fn=0;fd=1;ln=1;ld=0;
		while(!(m==mn&&n==md)){
			mn=fn+ln;
			md=ld+fd;
			mid=(double)mn/md;
			if(num>mid) fn=mn, fd=md, o+="R";
			else if(num<mid) ln=mn, ld=md, o+="L";
		}
		cout<<o<<endl;
	}
	return 0;
 
}

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