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

namespace Test
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            int[] x = Console.ReadLine().Split().Select(int.Parse).ToArray();
            int ret = 0;
            for (int i = 0; i < n; i++)
            {
                ret += x[i] % 2 == 0 ? 1 : -1;
            }
            Console.WriteLine(Math.Abs(ret));
        }
    }
}