#include<iostream>
#include<math.h>
#include<string.h>
#include<vector>
#include<algorithm>
#include<iomanip>
#include<deque>
using namespace std;

int main(){
	string s;
	cin >> s;
	if(s.size()<7){
		cout << s << endl;
		return 0;
	}
	string ans="";
	for(int i=0;i<s.size();i++){
		if(s[i]=='t'&&s[i+1]=='r'&&s[i+2]=='e'&&s[i+3]=='e'&&s[i+4]=='o'&&s[i+5]=='n'&&s[i+6]=='e'){
			ans+="forest";
			i+=6;
		}else{
			ans+=s[i];
		}
	}
	cout << ans << endl;
	return 0;
}