use std::io;

fn main() {
    let input = read_line();
    println!("{}", solve(input));
}

fn read_line() -> String {
    let mut line = String::new();
    io::stdin().read_line(&mut line)
        .expect("Failed to read line");
    return line
}

fn solve(input: String) -> String {
    return input.replace("treeone", "forest")
}

#[test]
fn test_solve() {
    assert_eq!(solve(String::from("treeone")), "forest");
    assert_eq!(solve(String::from("treeoneone")), "forestone");
    assert_eq!(solve(String::from("beet")), "beet");
}