#include <bits/stdc++.h>

using namespace std;

string x = "DDDRRRUUULLL";

int main() {
    int t;
    cin >> t;
    int a = t / 12, b = t % 12;
    string ans = "";
    while(a--) {
        ans += x;
    }
    ans += x.substr(0, b);
    cout << ans << endl;
}