using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main(string[] args)
    {
        var input = Console.ReadLine().Split().Select(int.Parse).ToArray();
        var X = input[0];
        var A = Console.ReadLine().Split().Select(int.Parse).ToArray();
        var B = Console.ReadLine().Split().Select(int.Parse).ToArray();

        if (A.Contains(X))
            if (B.Contains(X)) Console.WriteLine("MrMaxValu");
            else Console.WriteLine("MrMax");
        else if (B.Contains(X)) Console.WriteLine("MaxValu");
        else Console.WriteLine(-1);
    }
}