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

class No6
{
    static long X;
    static void Main()
    {
        var line = Console.ReadLine().Split(' ').Select(n => Int64.Parse(n)).ToArray();
        var k = Console.ReadLine().Split(' ').Select(n => Int64.Parse(n)).ToArray();
        X = line[0];
        var ans = 0L;
        for (int i=0;i<line[1];++i)
        {
            ans = (ans+GetNum(k[i]))% 1000003;
        }
        Console.WriteLine(ans);
    }
    static long GetNum(long num)
    {
        if (num == 0) return 1;
        var list = new List<long>();
        var x = X;
        while (num > 1)
        {
            if (num % 2 == 1) list.Add(x);
            x = x * x % 1000003;
            num /= 2;
        }
        foreach (var l in list)
        {
            x = x * l % 1000003;
        }
        return x;
    }
}