using System;
using System.Linq;

namespace _16
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] x = Console.ReadLine().Split().Select(int.Parse).ToArray();
            int[] a = Console.ReadLine().Split().Select(int.Parse).ToArray();
            long[] l = new long[100000000]; l[0] = 1;
            long ret = 0;
            for (int j = 1; j < 100000000; j++)
            {
                l[j] = l[j - 1] * x[0] % 1000003;
            }
            for (int i = 0; i < x[1]; i++)
            {
                ret += l[a[i]];
            }
            Console.WriteLine(ret);
        }
    }
}