#include <bits/stdc++.h>
using namespace std;
typedef unsigned long long ull;
typedef long long ll;
typedef string str;
const ll mod = 1e9 + 7;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    str s;
    cin >> s;
    size_t pos = 0;
    while ((pos = s.find("treeone", pos)) != str::npos)
    {
        s.replace(pos, 7, "forest");
        pos += 6;
    }
    cout << s;
    return 0;
}