fn read() -> String {
    let mut buf = String::new();
    std::io::stdin().read_line(&mut buf).unwrap();
    buf.trim().to_owned()
}

fn solve(s: String) -> &'static str {
    fn contain_with<const N: u8>(s: &str) -> bool {
        s.contains(&N.to_string())
    }

    if contain_with::<4>(&s) && contain_with::<6>(&s) {
        "Beautiful"
    } else {
        "..."
    }
}

fn main() {
    println!("{}", solve(read()));
}