#include <iostream>
#include <string>

using namespace std;

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

  size_t index, spos=0;
  while ((index = s.find("treeone", spos))!=string::npos) {
    s.replace(index, 7, "forest");
    spos=index+6;
  }

  cout << s << endl;
}