#include <bits/stdc++.h>
using namespace std;
const long double PI = 4 * atan(1);
const int32_t MOD = 1e9 + 7;
int power(int x, unsigned int y) {
  int temp;
  if (y == 0) return 1;
  temp = power(x, y / 2);
  if (y % 2 == 0)
    return temp * temp % MOD;
  else
    return x * temp % MOD * temp % MOD;
}
void solve() {
  string s;
  cin >> s;
  int n = s.length();
  string s1, s2;
  cin >> s1 >> s2;
  int m1 = s1.length(), m2 = s2.length();
  int j = -1, k = -1;
  bool f1 = 0, f2 = 0;
  j = s.find(s1);
  k = s.find(s2, s1.length() + j);
  if (j != -1 && k != -1) f1 = 1;
  reverse(s.begin(), s.end());
  j = -1, k = -1;
  j = s.find(s1);
  k = s.find(s2, s1.length() + j);
  if (j != -1 && k != -1) f2 = 1;
  if (f1 && f2)
    cout << "both\n";
  else if (f1)
    cout << "forward\n";
  else if (f2)
    cout << "backward\n";
  else
    cout << "fantasy\n";
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(0);
  solve();
  return 0;
}
