#include<iostream>
#include<queue>
#include<cstring>
#include<tuple>
//~FZY.//
#include<bits/stdc++.h>
#define Heap_int priority_queue<int, vector<int>, greater<int>>
#define IOS ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define out(x) cout << ((x) ? "YES" : "NO") << endl
#define mod(x, P) (((x) % (P) + (P)) % (P))
//#define mod(x) (((x) % (P) + (P)) % (P))
#define ULL unsigned long long
#define PII pair<int, int>
#define PLL pair<LL, LL>
#define lowbit(x) ((x) & -(x))
#define LL long long
#define pb push_back
#define gcd __gcd
#define Big __int128
#define endl "\n"
#define x first
#define y second
//#define int LL
using namespace std;

const int N = 2e5 + 10, M = 2e6 + 10, INF = 1e9 + 7, P = 998244353;
char a[4]={'L','R','U','D'};
void solve(){
    for(int i=0;i<50000;i++)
    {
        int wi=rand()%4;
        cout<<a[wi];
    }
}
signed main(){
    IOS;
    srand((unsigned int)time(NULL));
    int T = 1;
    //cin >> T;
    while(T--){
        solve();
    }
    return 0;
}