#include <iostream>
#include <bits/stdc++.h>
#include <atcoder/all>

using namespace std;

using namespace atcoder;
typedef long long ll;
typedef long double dd;
typedef unsigned long long ull;

typedef vector<ll> vl;
typedef vector<dd> vd;
typedef vector<bool> vb;
typedef vector<pair<ll,ll>> vl_l;

typedef vector<vector<ll>> vvl;
typedef vector<vector<dd>> vvd;
typedef vector<vector<bool>> vvb;
typedef vector<vector<pair<ll,ll>>> vvl_l;

typedef vector<vector<vector<ll>>> vvvl;
typedef vector<vector<vector<dd>>> vvvd;
typedef vector<vector<vector<bool>>> vvvb;
typedef vector<vector<vector<pair<ll,ll>>>> vvvl_l;

typedef map<ll,ll> ml;
typedef set<ll> sl;

// #define i_7 (ll)(1E9+7)
#define i_7 998244353
#define i_5 i_7-2
ll mod(ll a){
    ll c=a%i_7;
    if(c>=0)return c;
    return c+i_7;
}
typedef pair<ll,ll> l_l;
typedef pair<dd,dd> d_d;
ll inf=(ll)1E18;
#define rep(i,l,r) for(ll i=l;i<=r;i++)
#define pb push_back
ll max(ll a,ll b){if(a<b)return b;else return a;}
ll min(ll a,ll b){if(a>b)return b;else return a;}
dd EPS=1E-9;
dd PI=acos(-1);
// #define endl "\n"
#define fastio ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
template<class T,class S>
inline bool chmax(T &a, S b) {
    if(a < b) {
        a = (T)b;
        return true;
    }
    return false;
}
template<class T,class S>
inline bool chmin(T &a, S b) {
    if(a > b) {
        a = (T)b;
        return true;
    }
    return false;
}
ll hpow(ll x,ll y){
    if(y==0)return 1;
    ll res=hpow(x,y/2);
    res = mod(res*res);
    if(y%2==1){
        res *= x;
        res = mod(res);
    }
    return mod(res);
}
ll hpow_m(ll x,ll y,ll m){
    if(y==0)return 1;
    ll res=hpow_m(x,y/2,m);
    res = (res*res)%m;
    if(y%2==1){
        res *= x;
        res %= m;
    }
    return res%m;
}





signed main(){fastio
    
    string ans = "RDRL";
    vector<string> tmps = {
        "RDRL",
        "RRDD",
        "ULRL",
        "ULLR",
        "UULL",
        "RDUD"
    };
    string tmp = "";
    for(string s : tmps)tmp += s;
    
    ll t;cin>>t;
    while((ll)ans.size() < t){
        ans += tmp;
    }
    while((ll)ans.size() > t){
        ans.pop_back();
    }
    cout << ans << endl;
    
//    ll nx = 1;
//    ll ny = 1;
//    cerr << nx << ' ' << ny << endl;
//    rep(i,0,(ll)ans.size()-1){
//        if(ans[i] == 'R'){
//            nx ++;
//        }else if(ans[i] == 'L'){
//            nx --;
//        }else if(ans[i] == 'U'){
//            ny --;
//        }else if(ans[i] == 'D'){
//            ny ++;
//        }
//        cerr << nx << ' ' << ny << endl;
//    }
    
    
    return 0;
}