#include <bits/stdc++.h>
#define rep(i,n) for(int i=0; i<(n); i++)
using namespace std;
typedef long long ll;

int main(){
	string s; cin>>s;
	while(1){
		if(s.find("treeone")==string::npos) break;
		int n=s.find("treeone");
		s.replace(n,7,"$$$");
	}
	while(1){
		if(s.find("$$$")==string::npos) break;
		int n=s.find("$$$");
		s.replace(n,3,"forest");
	}
	cout << s<< endl;
}