#include <iostream>
#include <vector>
using namespace std;

typedef vector <string> VS;

VS R;
string D = "RDLU";
const int RIGHT = 0;
const int DOWN = 1;
const int LEFT = 2;
const int UP = 3;

void dfs( int dir, int x, int y ) {
    cout << D[dir];

    if ( dir == RIGHT ) {
        if ( y-1 >= 0 && x+1 < R[y-1].size() && R[y-1][x+1] == '1' ) {
            return dfs( UP, x+1, y-1 );
        }
        if ( x+1 < R[y].size() && R[y][x+1] == '1' ) {
            return dfs( RIGHT, x+1, y );
        }
        if ( y+1 < R.size() && x+1 < R[y+1].size() && R[y+1][x+1] == '1' ) {
            return dfs( DOWN, x+1, y+1 );
        }
    } else if ( dir == DOWN ) {
        if ( y+1 < R.size() && x < R[y+1].size() && R[y+1][x] == '1' ) {
            return dfs( RIGHT, x, y+1 );
        }
        if ( y+2 < R.size() && R[y+2][x] == '1' ) {
            return dfs( DOWN, x, y+2 );
        }
        if ( y+1 < R.size() && x-1 >= 0 && R[y+1][x-1] == '1' ) {
            return dfs( LEFT, x-1, y+1 );
        }
    } else if ( dir == LEFT ) {
        if ( y+1 < R.size()&& x < R[y+1].size() && R[y+1][x] == '1' ) {
            return dfs( DOWN, x, y+1 );
        }
        if ( x-1 >= 0 && R[y][x-1] == '1' ) {
            return dfs( LEFT, x-1, y );
        }
        if ( y-1 >= 0 && x < R[y-1].size() && R[y-1][x] == '1' ) {
            return dfs( UP, x, y-1 );
        }
    } else if ( dir == UP ) {
        if ( y-1 >= 0 && x-1 >= 0 && R[y-1][x-1] == '1' ) {
            return dfs( LEFT, x-1, y-1 );
        }
        if ( y-2 >= 0 && R[y-2][x] == '1' ) {
            return dfs( UP, x, y-2 );
        }
        if ( y-1 >= 0 && x < R[y-1].size() && R[y-1][x] == '1' ) {
            return dfs( RIGHT, x, y-1 );
        }
    }
}

int main() {
    R = VS( 9 );
    for ( int i = 0; i < 9; i++ ) {
        cin >> R[i];
    }
    dfs( 0, 0, 0 );
    cout << endl;
    return 0;
}