#include <bits/stdc++.h>

using namespace std;

int main() {
    string s;
    
    cin >> s;
    
    if (s.length() < 7) {
        cout << s << endl;
        return 0;
    }
    
    string ans = "";
    for (int i = 0; i < s.length(); i++) {
        if (s.substr(i, 7) == "treeone") {
            ans += "forest";
            i += 6;
        } else if (s.length() - i < 7) {
            ans += s.substr(i, s.length() - i);
            break;
        } else {
            ans += s[i];
        }
    }
    
    cout << ans << endl;
    
    return 0;
}