#include <iostream>
#include <string>
using namespace std;

int main(){
    int T;
    cin >> T;
    string S = "RRRDLLLDDD";
    for (int i = 0; i < 6250; i++){
        S += "RRRRUUUULLLLDDDD";
    }
    cout << S.substr(0, T) << endl;
}