#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < n; ++i)
using ll = long long;
using namespace std;
const int INF = 1e9;

int main() {
    string s;
    cin >> s;

    rep(i,s.size()){
        if(strncmp(&s[i],"treeone",7)==0){
            cout << "forest";
            i += 6;
        }
        else{
            cout << s[i];
        }
    }
    cout << endl;

    return 0;
}