        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);
        	}
        }