package no016;

import java.math.BigInteger;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		BigInteger x = new BigInteger(sc.next());
		BigInteger MOD = new BigInteger("1000003");
		int n = sc.nextInt();
		BigInteger ans = BigInteger.ZERO;
		for(int i=0;i<n;i++) {
			ans = ans.add(x.modPow(new BigInteger(sc.next()), MOD));
		}
		System.out.println(ans.mod(MOD));
	}

}