#include<iostream>
#include<algorithm>
#include <vector>
#include<cmath>
using namespace std;
int main() {
	string S;
	cin >> S;
	int Z = S.size();
	vector<char>vec(Z);
	for (int ia = 0; ia < Z; ia++) {
		vec.at(ia) = S.at(ia);
	}
	vector<char>vecb(100);
	for (int id = 0; id < 100; id++) {
		vecb.at(id) = ',';
	}
	if (Z < 7) {
		cout << S;
	}
	else {
		for (int ib = 0; ib < Z; ib++) {
			if (vec.at(ib) == 't' && vec.at(ib + 1) == 'r' && vec.at(ib + 2) == 'e'
				&& vec.at(ib + 3) == 'e' && vec.at(ib + 4) == 'o' && vec.at(ib + 5) == 'n' && vec.at(ib + 6) == 'e') {
				vecb.at(ib + 0) = 'f';
				vecb.at(ib + 1) = 'o';
				vecb.at(ib + 2) = 'r';
				vecb.at(ib + 3) = 'e';
				vecb.at(ib + 4) = 's';
				vecb.at(ib + 5) = 't';
				vecb.at(ib + 6) = ',';
				ib += 6;
			}
			else {
				vecb.at(ib) = vec.at(ib);
			}
		}
		for (int ic = 0; ic < Z; ic++) {
			if (vecb.at(ic) == ',') {
				continue;
			}
			cout << vecb.at(ic);
		}
	}
}