#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;

int main() {
  string S; cin >> S;
  string T = "";
  for(int i = 0; i < (int)S.size(); i++){
    T += S[i];
    if(i >= 6 and T.substr(i-6, i+1) == "treeone"){
      T = T.substr(0, i-6) + "forest";
    }
  }
  cout << T << endl;
}