    using System;
    class Program
    {
    	static void Main(string[] args)
    	{
    		
    		string[] input = Console.ReadLine().Split(' ');
    		int b = int.Parse(input[0]);
    		int c = int.Parse(input[1]);
    		string s = b*c%2=1:"odd"?"even";
    		Console.WriteLine(s);
    	}
    }