using System;

namespace yukicode
{
    class No975
    {
        static void Main(string[] args)
        {
            int mrNum = 0, valueNum = 0, resMr = -1, resVal = -1;
            string reqCode  = "";
            string input;
            input = Console.ReadLine();

            string[] firstInfo = input.Split(" ");

            if(3 == firstInfo.Length)
            {
                reqCode = firstInfo[0];
                mrNum = int.Parse(firstInfo[1]);
                valueNum = int.Parse(firstInfo[2]);
            }

            input = Console.ReadLine();
            string[] secandInfo = input.Split(" ");
            input = Console.ReadLine();
            string[] thirdInfo = input.Split(" ");

            resMr = Array.IndexOf(secandInfo, reqCode);
            resVal = Array.IndexOf(thirdInfo, reqCode);

            if((resMr >= 0) && (resVal >= 0))
            {
                Console.WriteLine("MrMaxValu");
            }
            else if (resMr >= 0)
            {
                Console.WriteLine("MrMax");
            }
            else if (resVal >= 0)
            {
                Console.WriteLine("MaxValu");
            }
            else
            {
                Console.WriteLine("-1");
            }
        }
    }
}