import java.util.Scanner;


public class Main_yukicoder16 {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        final int MOD = 1000003;
        int x = sc.nextInt();
        int n = sc.nextInt();
        
        long ret = 0;
        for (int i = 0; i < n; i++) {
        	int a = sc.nextInt();
        	long tmp = x;
        	long tmp2 = 1;
        	while (a > 0) {
        		if (a % 2 == 1) {
        			tmp2 = tmp2 * tmp % MOD;
        		}
        		tmp = tmp * tmp % MOD;
        		a /= 2;
        	}
        	
        	ret = (ret + tmp2) % MOD;
        }

        System.out.println(ret);
        
        sc.close();
    }
}