#include <bits/stdc++.h>

using namespace std;

int main() {
    string s;
    cin >> s;
    
    auto pos = s.find("treeone");
    while (pos != string::npos) {
        s.replace(pos, 7, "forest");
        pos = s.find("treeone", pos + 6);
    }

    cout << s << endl;
    return 0;
}