fn gcd(a: i128, b: i128) -> i128 {
    if b == 0 {
        return a;
    }
    gcd(b, a % b)
}

fn main() {
    let v = read_vec::<i128>();
    let (a, b) = (v[0], v[1]);
    let g = gcd(a, b);
    for i in 1..1000001 {
        if g == i * i * i {
            println!("Odd");
            return;
        }
    }
    println!("Even");
}

fn read<T: std::str::FromStr>() -> T {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    s.trim().parse().ok().unwrap()
}

fn read_vec<T: std::str::FromStr>() -> Vec<T> {
    read::<String>()
        .split_whitespace()
        .map(|e| e.parse().ok().unwrap())
        .collect()
}