#include <bits/stdc++.h>

using namespace std;

int main() {
  string treeone;
  cin >> treeone;

  for(int i = 0; i < treeone.size(); i++) {
    if(treeone.substr(i, 7) == "treeone") {
      cout << "forest";
      i += 6;
    } else {
      cout << treeone[i];
    }
  }

  cout << endl;
}