#include <iostream>
#include <string>
using namespace std;
int main(){
    string str,ans;
    cin >> str;
    for(int k=0;k<str.size();k++){
        if(str.substr(k,7)=="treeone"){
            ans+="forest";k=k+6;
        }else ans+=str[k];
    }
    cout << ans << endl;
    return 0;
}