#include <iostream>
#include <cstdio>
#include <cstring>
#include <vector>
#define RIGHT 1
#define LEFT -1
#define UP 2
#define DOWN -2
using namespace std;

int main(){
	int i,j,state,sy=0,sx=1,t_state;
	char row[5][4],col[4][5];

	cin>>row[0];
	for(i=0;i<4;i++){
		cin>>col[i];
		cin>>row[i+1];
	}

	for(i=0;i<5;i++){
		for(j=0;j<4;j++){
			row[i][j]=row[i][j]-'0';
		}
	}
	for(i=0;i<5;i++){
		for(j=0;j<4;j++){
			col[j][i]=col[j][i]-'0';
		}
	}

	cout<<"R"<<flush;
	state=RIGHT;
	while(sy || sx){
		switch(state){
			case RIGHT:
				if(sy>0 && col[sy-1][sx]){
					cout<<"U"<<flush;
					t_state=UP;
					sy--;
				}else if(sx<4 && row[sy][sx]){
					cout<<"R"<<flush;
					t_state=RIGHT;
					sx++;
				}else if(sy<4 && col[sy][sx]){
					cout<<"D"<<flush;
					t_state=DOWN;
					sy++;
				}
				break;
			case LEFT:
				if(sy<4 && col[sy][sx]){
					cout<<"D"<<flush;
					t_state=DOWN;
					sy++;
				}else if(sx>0 && row[sy][sx-1]){
					cout<<"L"<<flush;
					t_state=LEFT;
					sx--;
				}else if(sy>0 && col[sy-1][sx]){
					cout<<"U"<<flush;
					t_state=UP;
					sy--;
				}
				break;
			case UP:
				if(sx>0 && row[sy][sx-1]){
					cout<<"L"<<flush;
					t_state=LEFT;
					sx--;
				}else if(sy>0 && col[sy-1][sx]){
					cout<<"U"<<flush;
					t_state=UP;
					sy--;
				}else if(sx<4 && row[sy][sx]){
					cout<<"R"<<flush;
					t_state=RIGHT;
					sx++;
				}
				break;
			case DOWN:
				if(sx<4 && row[sy][sx]){
					cout<<"R"<<flush;
					t_state=RIGHT;
					sx++;
				}else if(sy<4 && col[sy][sx]){
					cout<<"D"<<flush;
					t_state=DOWN;
					sy++;
				}else if(sx>0 && row[sy][sx-1]){
					cout<<"L"<<flush;
					t_state=LEFT;
					sx--;
				}
				break;
		}
		state=t_state;
	}

	cout<<endl;
	return 0;
}