using System;
using System.Linq;
public class Hello{
    public static void Main(){
        
        var inpt = Console.ReadLine().Split();
        string want = inpt[0];
        
        var MrMax   = Console.ReadLine().Split().ToList();
        var MaxValu = Console.ReadLine().Split().ToList();
        
        if(MrMax.Contains(want) && MaxValu.Contains(want))
            Console.WriteLine("MrMaxValu");
        else if(MrMax.Contains(want))
            Console.WriteLine("MrMax");
        else if(MaxValu.Contains(want))
            Console.WriteLine("MaxValu");
        else
            Console.WriteLine(-1);
    }
}