#include<bits/stdc++.h>
using namespace std;
#define int long long

signed main(){
	string S, temp[2] = {"treeone","forest"};
	
	cin>>S;
	
	for(int i = 0; i < S.size(); i++){
		int f = 0;
		for(int j = 0; j < temp[0].size(); j++){
			if(i+j >= S.size()){
				f = 1;
				break;
			}
			if(S[i+j] != temp[0][j]){
				f = 1;
				break;
			}
			
		}
		if(f == 0){
			cout<<temp[1];
			i += temp[0].size()-1;
		} else cout<<S[i];
	}
	cout<<endl;
	
	
	return 0;
}