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

// How to replace all occurrences of a character in string?.
// https://stackoverflow.com/questions/2896600/how-to-replace-all-occurrences-of-a-character-in-string
string replaceAll(string str, const string& from, const string& to) {
    size_t start_pos = 0;
    while((start_pos = str.find(from, start_pos)) != string::npos) {
        str.replace(start_pos, from.length(), to);
        start_pos += to.length(); // Handles case where 'to' is a substring of 'from'
    }
    return str;
}

int main() {
    
    // 1. 入力情報取得.
    string ans;
    cin >> ans;
    
    // 2. i文字目, j文字目入れ替え.
    ans = replaceAll(ans, "treeone", "forest");
    
    // 3. 出力.
    cout << ans << endl;
    return 0;
    
}