using System;

public class Hello
{
    public static void Main()
    {
        var a = new int[3];
        a[0] = 0; a[1] = 1; a[2] = 2;
        var t = int.Parse(Console.ReadLine().Trim()) - 1;
        var n = int.Parse(Console.ReadLine().Trim());
        string[] line = Console.ReadLine().Trim().Split(' ');
        for (int i = 0; i < n; i++)
        {
            var p = int.Parse(line[0]) - 1;
            var q = int.Parse(line[1]) - 1;
            swap(a,  p, q);
        }
        for (int i = 0; i < 3; i++)
            if (a[i] == t) { Console.WriteLine(i + 1); break; }
   }
    public static void swap (int[]a , int p , int q)
    {
        var w = a[p];
        a[p] = a[q];
        a[q] = w;
    }
}