//
// Created by popop on 2025/08/15.
//

#include <iostream>
#include <sstream>
#include <iostream>
#include <string>
#include <regex>



using namespace std;

bool ReplaceOnce(std::string& s, const std::string& origin, const std::string& dest)
{
    if (origin.empty()) return false;
    std::size_t pos = s.find(origin);
    if (pos == std::string::npos) return false;
    s.replace(pos, origin.size(), dest);
    return true;
}

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

    for (int _ = 0; _ < 25; _++) {
        ReplaceOnce(s, "treeone", "forest");
    }

    cout << s << endl;
}