fn main() {
    let mut s = String::new();

    std::io::stdin().read_line(&mut s).unwrap();
    let mut s = s.split_whitespace();

    let a : i32 = s.next().unwrap().parse().unwrap();
    let b : i32 = s.next().unwrap().parse().unwrap();

    println!("{}", if (a * b) % 2 == 0 { "Odd" } else { "Even" } );
}
