using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var a = ReadLine();
        var b = ReadLine();
        WriteLine(a.Last() == '1' && b.Last() == '1' ? "Odd" : "Even");
    }
}