#include <bits/stdc++.h>

using namespace std;

int main() {
    string x = "DDDRRRRUUULLLL";
    string y = "DDDDRRRRUUUULLLL";
    int t;
    cin >> t;
    if (t <= 14) {
        cout << x.substr(0, t) << endl;
    } else  {
        t -= 14;
        string ans = x;
        int a = t / 16, m = t % 16;
        while (a--) {
            ans += y;
        }
        ans += y.substr(0, m);
        cout << ans << endl;
    }
}