using System;
using System.Linq;

namespace y
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] ss = Console.ReadLine().Split();
            int n = int.Parse(ss[0]);
            int k = int.Parse(ss[1]);
            var a = Console.ReadLine().Split().Select(x => int.Parse(x)).ToArray();

            int z = a.Count(x => x == 0);
            int w = 0;
            int l = z;

            foreach (var item in a)
            {
                if (item == 0) continue;
                if (item % (k + 1) == 0)
                {
                    l++;
                }
                else
                {
                    w++;
                }
            }

            if (w == 1)
            {
                Console.WriteLine("YES");
            }
            else if (w != 0 && w % 2 == 0)
            {
                Console.WriteLine("YES");
            }
            else
            {
                Console.WriteLine("NO");
            }
        }
    }
}