#include <fstream>
#include <iostream>
#include <string>


int main() {

	//std::ifstream inf("Text.txt");	std::cin.rdbuf(inf.rdbuf());
	std::string S;
	std::cin >> S;

	while (1) {

		if (S.find("treeone", 0) != std::string::npos) {
			S.replace(S.find("treeone", 0), 7, "forest");
		}
		else {
			break;
		}

	}


	std::cout << S << std::endl;

	return 0;
}