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


int main() {

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

	unsigned int i = 0;
	while (i < S.length()) {
		i = S.find("treeone", i);
		if (i != -1) {
			S.replace(i, 7, "forest");
			i = i + 6;
		}
		else {
			break;
		}
	}


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

	return 0;
}