#include<iostream>
#include<string>
#include<queue>
#include<vector>
#include<cassert>
#include<random>
#include<set>
#include<map>
#include<cassert>
#include<unordered_map>
#include<bitset>
#include<numeric>
#include<algorithm>
using namespace std;
typedef long long ll;
const int inf=1<<30;
const ll INF=1LL<<62;
typedef pair<int,ll> P;
typedef pair<int,P> PP; 
const ll MOD=998244353;


int main(){
    int T;
    cin >> T;
    string S = "RRRDDLLLDD";
    for (int i = 0; i < 62500; i++){
        S += "RRRRUUUULLLLDDDD";
    }
    cout << S.substr(0, T) << endl;
}