#include <iostream>
#include <string>
using namespace std;
int main(){
	string S;
	cin >> S;
	if (S.size() < 7){
		cout << S << endl;
	} else {
		int N = S.size();
		string T = S.substr(0, 6);
		for (int i = 6; i < N; i++){
			T += S[i];
			if (T.substr(T.size() - 7, 7) == "treeone"){
				for (int j = 0; j < 7; j++){
					T.pop_back();
				}
				T += "forest";
			}
		}
		cout << T << endl;
	}
}