using System;
using System.IO;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Numerics;
using System.Diagnostics;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using static System.Math;
using static System.Console;


namespace yukicoder
{
    class Program
    {
        static void Main()
        {
            var n = int.Parse(Console.ReadLine());
            var x = Console.ReadLine().Split().Select(int.Parse).ToArray();
            var cnt = x.Count();

            Console.WriteLine(cnt % 2 == 0 ? 0 : 1);
        }
        
    }
}