#include<bits/stdc++.h>
using namespace std;
string side[4], Longitudinal[5];
int mox[2][2] = { { 1, -1 }, { 0, -1 } }, moy[2][2] = { { -1, 1 }, { -1, 0 } };
char str[5] = "URDL";
//1,0,0
void serch(int x, int y, int then)
{
	if (then == -1)
		then = 3;
	if (!x && !y) {
		cout << endl;
		exit(0);
	}

	for (int i = 0; i < 4; i++) {
		int now = (then + i) % 4, ka = now / 2;
		if (!(now % 2) && y + moy[0][ka] < 5 &&
		y + moy[0][ka] > -1 && side[y + moy[1][ka]][x] == '1') {
			cout << str[now];
			serch(x, y + moy[0][ka], now - 1);
		}
		if (now % 2 && x + mox[0][ka] < 5 &&
		x + mox[0][now / 2] > -1 && Longitudinal[y][x + mox[1][ka]] == '1') {
			cout << str[now];
			serch(x + mox[0][ka], y, now - 1);
		}
	}

}

int main()

{
	for (int i = 0; i < 4; i++)
		cin >> Longitudinal[i] >> side[i];
	cin >> Longitudinal[4];
	cout << "R";
	serch(1, 0, 0);
}