#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 ans="RRRDDLLLDD";

    for(int t=0;t<100000;t++){
        ans=ans+"RRRRUUUULLLLDDDD";
    }

    cout<<ans.substr(0,T)<<endl;
}