use std::io;
type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;

fn main() -> Result<()> {
    let mut buf = String::new();
    io::stdin().read_line(&mut buf)?;
    let xs: Vec<usize> = buf.split_whitespace().map(|s| s.parse().unwrap()).collect();
    let (a, b) = (xs[0], xs[1]);

    let is_odd = [a, b].iter().all(|x| x % 2 == 1);
    if is_odd {
        println!("Odd");
    } else {
        println!("Even");
    }

    Ok(())
}
