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

IEnumerable<int> getLine()
{
    return Console.ReadLine().Split(' ').Select(x => Convert.ToInt32(x));
}

void Main()
{
    IEnumerable<int> inputs = getLine();
    int wantedNum = inputs.First();
    IEnumerable<int> mrMaxList = getLine();
    IEnumerable<int> maxValuList = getLine();

    bool isMrMax = mrMaxList.Contains(wantedNum);
    bool isMaxValu = maxValuList.Contains(wantedNum);

    if (isMrMax && isMaxValu)
    {
        Console.WriteLine("MrMaxValu");
    }
    else if (isMrMax)
    {
        Console.WriteLine("MrMax");
    }
    else if (isMaxValu)
    {
        Console.WriteLine("MaxValu");
    }
    else
    {
        Console.WriteLine("-1");
    }
}

Main();