#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <regex>
#include <cstdio>
#include <cstring>
#include <cmath>
using namespace std;
using ll = long long;

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

    string r = regex_replace(s, regex("treeone"), "forest");

    cout << r << endl;

    return 0;
}