fn getline() -> String {
    let mut __ret = String::new();
    std::io::stdin().read_line(&mut __ret).ok();
    __ret
}

fn main() {
    let subtitle = getline();
    let i = subtitle.chars().nth(0).unwrap();

    match i {
        'Z' => println!("1st"),
        'B' => println!("2nd"),
        'S' => println!("3rd"),
        'E' => println!("4th"),
        'D' => println!("Alpha"),
        _ => todo!(),
    }
}