/* -*- coding: utf-8 -*-
 *
 * 2228.cc:  No.2228 Creeping Ghost - yukicoder
 */

#include<cstdio>
#include<algorithm>
 
using namespace std;

/* constant */

const int N = 8;
const char ss[] = "DDDRRRRU";
const int L = 16;
const char ts[] = "UULLLLDDDDRRRRUU";

/* typedef */

/* global variables */

/* subroutines */

/* main */

int main() {
  int t;
  scanf("%d", &t);

  if (t < N)
    for (int i = 0; i < t; i++) putchar(ss[i]);
  else {
    printf("%s", ss);
    t -= N;
    for (int i = 0; i < t; i++) putchar(ts[i % L]);
  }
  putchar('\n');
  return 0;
}