#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define rep(i,n) for(ll i=0;i<(ll)(n);i++)
#define all(a) (a).begin(),(a).end()
#define pb emplace_back
#define INF (1e9+1)

int main(){
    bool w[5][5][4]={};
    
    char a;
    
    rep(i,5){
        rep(j,4){
            cin>>a;
            w[i  ][j  ][0] = a-'0';
            w[i  ][j+1][2] = a-'0';
        }
        if(i==4)continue;
        
        rep(j,5){
            cin>>a;
            w[i  ][j  ][1] = a-'0';
            w[i+1][j  ][3] = a-'0';
        }
    }
    
    assert(w[0][0][0]);
    
    int py = 0, px = 0;
    int dir = 0;
    
    int dx[] = {1, 0, -1, 0};
    int dy[] = {0, 1, 0, -1};
    
    string ans = "";
    string ch[] = {"R", "D", "L", "U"};
    do{
        for(int i=-1;i<=2;i++){
            int nd = ( dir+i+4 )%4;
            if( w[py][px][nd] ){
                ans += ch[nd];
                py += dy[nd];
                px += dx[nd];
                dir = nd;
                break;
            }
        }
    }while( py!=0 || px!=0 );
    
    cout<<ans<<endl;
}