#include <bits/stdc++.h>

using namespace std;
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define rep(i,n) for(int i=0;i<(n);i++)
constexpr int MOD = 1000000007;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
constexpr int dx[] = {1, 0, -1, 0, 1, 1, -1, -1};
constexpr int dy[] = {0, -1, 0, 1, 1, -1, -1, 1};

template <typename T> ostream &operator<<(ostream &os, const vector<T> &vec){os << "["; for (const auto &v : vec) {os << v << ","; } os << "]"; return os; }

void solve() {
  string s;
  cin >> s;
  string ans = "";
  for (int i = 0; i < s.size(); i++) {
    if (s.find("treeone", i) != string::npos) {
      int k = s.find("treeone", i);
      ans += s.substr(i, k - i);
      i = k;
      ans += "forest";
      i += 6;
    } else {
      ans += s[i];
    }
  }
  cout << ans << endl;
}

int main() {
  std::cin.tie(0);
  std::ios::sync_with_stdio(false);
  cout.setf(ios::fixed);
  cout.precision(16);
  solve();
  return 0;
}