import java.util.Scanner;
import java.lang.Math;
import java.lang.StringBuilder;
import java.util.regex.Pattern;
import java.util.Arrays;


    public class Main {
        public static void main(String[] args) {
            Scanner sc = new Scanner(System.in);
  
            String s = sc.nextLine();
            StringBuilder sb = new StringBuilder(s);
            boolean flag = true;
            
            while(flag){
                int start = sb.indexOf("treeone");
                sb.replace(start, start+7,"forest");
                if(s.contains("treeone")){
                    flag = false;
                }
            }
            System.out.println(s);
        }
    }