using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        if ((c[0] + 4) % 12 != c[1]) WriteLine((c[0] + 4) % 12);
        else WriteLine((c[1] + 4) % 12);
    }
}