import java.util.*;

public class Yuki016 {
    public static void main(String[] args) {
        Yuki016 p = new Yuki016();

    }

    public Yuki016() {
        Scanner scanner = new Scanner(System.in);
        final int x = scanner.nextInt();
        final int N = scanner.nextInt();
        final int[] a = new int[N];

        int zeroCount = 0;
        final int MOD = 1000003;
        long tmp = x;
        long[] muls = new long[N];
        Arrays.fill(muls, 1);

        long ans2=1;
        for (int i = 0; i < N; i++) {
            a[i] = scanner.nextInt();
            if (a[i] == 0) {
                zeroCount++;
            }
        }
        while (zeroCount < N) {
            for (int i = 0; i < N; i++) {
                if (a[i] > 0) {
                    if (a[i] % 2 == 1) {
                        muls[i] = muls[i] * tmp % MOD;
                    }
                    a[i] >>= 1;
                    if (a[i] == 0) {
                        zeroCount++;
                    }
                }
            }
            tmp = (tmp * tmp) % MOD;
        }

        long ans = 0;
        for (int i = 0; i < N; i++) {
            ans += muls[i];
        }

        System.out.println(ans % MOD);
    }

}