#include <bits/stdc++.h>
#ifdef _DEBUG
#include "debug.hpp"
#else
#define debug(...)
#endif
#define fastIO (cin.tie(0), cout.tie(0), ios::sync_with_stdio(false))
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define precise(i) fixed << setprecision(i)
using ill = int64_t;
using ull = uint64_t;
using namespace std;

void solve() {
  string s;
  cin >> s;

  string treeone = "treeone";

  if (s.size() < treeone.size()) {
    cout << s << '\n';
  } else {
    for (size_t i = 0; i < s.size(); i++) {
      string substr = s.substr(i, treeone.size());
      if (substr == treeone) {
        cout << "forest";
        i += 6;
      } else {
        cout << s[i];
      }
    }
  }
  cout << '\n';
}

void wrapper() {
  rep(i, 4) {
    cout << "[TEST " << i + 1 << "]\n";
    solve();
    cout << "\n";
  }
}

int main() {
  fastIO;
#ifdef _DEBUG
  wrapper();
#else
  solve();
#endif
}