//inlclude前用define 
#define _USE_MATH_DEFINES

//include
#include<iostream>
#include<string>
#include<algorithm>
#include<vector>
#include<cmath>

using namespace std;
//typedef
typedef vector<int> VI;
typedef vector<string> VS;
typedef vector<char> VC;

int main() {
	string s;
	cin >> s;
	int size = s.size();
	if (size <= 7) {
		if (s == "treeone") s = "forest";
	} else {
		for (int i = 0; i < (size-7); i++) {
			string substr = s.substr(i, 7);
			if (substr == "treeone") {
				s.replace(i,7,"forest");
			}
		}
	}
	cout << s << endl;
	return 0;
}