#include<iostream>
#include<stdlib.h>
#include<string>

using namespace std;

void run();
void change_forest(string s, string sub_str);

int main()
{
    run();
    return EXIT_SUCCESS;
}

void run()
{
    string s,sub_str="treeone";
    cin>>s;
    if(s.length()<sub_str.length()){
        cout<<s<<endl;
    }
    else{
        change_forest(s,sub_str);
    }
}

void change_forest(string s, string sub_str)
{
    int sub_l = sub_str.length();
    for(int i=0;i<s.length();i++){
        for(int j=0;j<sub_l;j++){
            if(s[i+j]!=sub_str[j]){break;}
            else if(j==sub_l-1&&s[i+j]==sub_str[j]){
                s.replace(i,sub_l,"forest");
                //cout<<s<<endl;
                i+=5;
            }
        }
    }
    cout<<s<<endl;
}