#include <iostream>
#include <regex>
#include <string>

std::string replaceOtherStr(std::string &replacedStr, std::string from, std::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(void) {
    std::string s;
    std::cin >> s;
    replaceOtherStr(s, "treeone", "forest");
    std::cout << s;
}