#include <bits/stdc++.h>
using namespace std;
int main(){
string h,t="treeone",f="forest";
cin>>h;
size_t mon=h.find(t);
while(string::npos!=mon){
h.replace(mon,t.length(),f);
mon=h.find(t,mon+f.length());
}
cout<<h<<endl;
}