import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String[] array = sc.next().split("");

        List<String> strList = new ArrayList<>();
        List<String> resList = new ArrayList<>();
        for (int i = 0; i < array.length; i++) {
            strList.add(array[i]);
            if (strList.size() == 7) {
                resList.add(String.join("", strList).equals("treeone") ? "forest" : String.join("", strList));
                strList.clear();
            } else if (i == array.length - 1) {
                resList.add(String.join("", strList));
            }
        }
        System.out.println(String.join("", resList));
    }
}