#include <bits/stdc++.h>
// #include <boost/multiprecision/cpp_int.hpp>
using namespace std;
// using bigint = boost::multiprecision::cpp_int;

template <typename T> using min_priority_queue = priority_queue<T,vector<T>,greater<T>>;

random_device seed_gen;
mt19937 engine(seed_gen());

int64_t get_time_ns(){
    struct::timespec t;
    clock_gettime(CLOCK_MONOTONIC, &t);
    return t.tv_sec * int64_t(1'000'000'000) + t.tv_nsec;
}

int main() {
    const string T = "treeone";
    const string F = "forest_";
    string s;
    cin >> s;
    int n = s.size();

    bool b = true;
    while(b) {
        b = false;
        int i = 0;
        while(i <= n-7) {
            string t = s.substr(i, 7);
            if(t == T) {
                for(int j = 0; j < 7; j++) {
                    s[i+j] = F[j];
                }
                i += 7;
                b = true;
                break;
            }
            else i++;
        }
        string s2;
        for(char c : s) if(c != '_') s2.push_back(c);
        s = s2;
    }

    cout << s << endl;

    return 0;
}