#include <bits/stdc++.h>
using namespace std;

int main() {
    string s;
    cin >> s;
    while(s.find("treeone") != s.npos){
        auto i = s.find("treeone");
        s.replace(i,i+7,"x");
    }
    while(s.find("x") != s.npos){
        auto i = s.find("x");
        s.replace(i,i+1,"forest");
    }
    cout << s << endl;
    return 0;
}