#include <iostream>
#include <string>
using namespace std;

string replaceOtherStr(string &replacedStr, string from, string to) {
    const unsigned int pos = replacedStr.find(from);
    const int len = from.length();
 
    if (pos == std::string::npos || from.empty()) {
        return replacedStr;
    }
 
    return replacedStr.replace(pos, len, to);
}

int main(){
    string s;
    cin >> s;
    bool flg = 0;
    for(int i = 0; i < s.length() - 7; i++){
        if(s.compare(i, 7, "treeone") == 0){
            flg = 1;
            break;
        }
    }
    if(flg) replaceOtherStr(s, "treeone", "forest");
    cout << s << endl;
    return 0;
}