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

signed main() {
  string S;
  cin >> S;
  
  string T = "";
  for( int i = 0; i < S.size(); i++ ){
    if( S.substr(i, 7) == "treeone" ){
      T += "forest";
      i += 6;
    }else{
      T += S.at(i);
    }
  }
  cout << T << endl;
}