#include <bits/stdc++.h>
 
#define rep(i, n) for (int i = 0; i < int(n); i++)
#define rrep(i, n) for (int i = int(n) - 1; i >= 0; i--)
#define reps(i, n) for (int i = 1; i <= int(n); i++)
#define rreps(i, n) for (int i = int(n); i >= 1; i--)
#define repc(i, n) for (int i = 0; i <= int(n); i++)
#define rrepc(i, n) for (int i = int(n); i >= 0; i--)
#define repi(i, a, b) for (int i = int(a); i < int(b); i++)
#define repic(i, a, b) for (int i = int(a); i <= int(b); i++)
#define repp(i, n) rep(i, n)
#define reppp(i, n) repp(i, n)
#define rrepp(i, n) rrep(i, n)
#define repss(i, n) reps(i, n)
#define repcc(i, n) repc(i, n)
#define repii(i, a, b) repi(i, a, b)
#define each(x, y) for (auto &x : y)
#define all(a) (a).begin(), (a).end()
#define bit(b) (1ll << (b))
 
using namespace std;
 
using i32 = int;
using i64 = long long;
using u64 = unsigned long long;
using f80 = long double;
using vi32 = vector<i32>;
using vi64 = vector<i64>;
using vu64 = vector<u64>;
using vf80 = vector<f80>;
using vstr = vector<string>;
 
inline void yes() { cout << "Yes" << '\n'; exit(0); }
inline void no() { cout << "No" << '\n'; exit(0); }
inline i64 gcd(i64 a, i64 b) { if (min(a, b) == 0) return max(a, b); if (a % b == 0) return b; return gcd(b, a % b); }
inline i64 lcm(i64 a, i64 b) { return a / gcd(a, b) * b; }
inline u64 xorshift() { static u64 x = 88172645463325252ull; x = x ^ (x << 7); return x = x ^ (x >> 9); }
void solve(); int main() { ios::sync_with_stdio(0); cin.tie(0); cout << fixed << setprecision(16); solve(); return 0; }
template <typename T> class pqasc : public priority_queue<T, vector<T>, greater<T>> {};
template <typename T> class pqdesc : public priority_queue<T, vector<T>, less<T>> {};
template <typename T> inline void amax(T &x, T y) { if (x < y) x = y; }
template <typename T> inline void amin(T &x, T y) { if (x > y) x = y; }
template <typename T> inline T power(T x, i64 n, T e = 1) { T r = e; while (n > 0) { if (n & 1) r *= x; x *= x; n >>= 1; } return r; }
template <typename T> istream& operator>>(istream &is, vector<T> &v) { each(x, v) is >> x; return is; }
template <typename T> ostream& operator<<(ostream &os, vector<T> &v) { rep(i, v.size()) { if (i) os << ' '; os << v[i]; } return os; }
template <typename T, typename S> istream& operator>>(istream &is, pair<T, S> &p) { is >> p.first >> p.second; return is; }
template <typename T, typename S> ostream& operator<<(ostream &os, pair<T, S> &p) { os << p.first << ' ' << p.second; return os; }
 
void solve() {
  vstr lr(5), du(5);
  rep(i, 5) {
    cin >> lr[i]; lr[i].push_back('0');
    if (i == 4) { du[i] = string(5, '0'); break; }
    cin >> du[i];
  }
  string ans;
  int x = 0, y = 0;
  char d = 'R';
  while (true) {
    switch (d) {
    case 'R':
      if (y > 0 && du[y - 1][x] == '1') d = 'U', ans.push_back(d), y--;
      else if (lr[y][x] == '1') ans.push_back(d), x++;
      else d = 'D';
      break;
    case 'D':
      if (lr[y][x] == '1') d = 'R', ans.push_back(d), x++;
      else if (du[y][x] == '1') ans.push_back(d), y++;
      else d = 'L';
      break;
    case 'L':
      if (du[y][x] == '1') d = 'D', ans.push_back(d), y++;
      else if (x > 0 && lr[y][x - 1] == '1') ans.push_back(d), x--;
      else d = 'U';
      break;
    case 'U':
      if (x > 0 && lr[y][x - 1] == '1') d = 'L', ans.push_back(d), x--;
      else if (y > 0 && du[y - 1][x] == '1') ans.push_back(d), y--;
      else d = 'R';
      break;
    }
    if (x == 0 && y == 0) break;
  }
  cout << ans << '\n';
}



Measured memory_bytes: 3224