#include <stdio.h>
#include <stdlib.h>
#include <math.h>

#define ANS (1000000+3)
#define DEV 3

#define DEBUG 0

int main(void)
{
	char x,n,i;
	long a,g,h,j,tmp,ans=0;
	scanf("%hhd %hhd",&x,&n);
	for (i=0;i<n;i++) {
		scanf("%ld",&a);
		
		g = a / DEV;
		h = a % DEV;
		tmp = 1;
		if (DEBUG) printf("g=%ld\n",g);
		for (j=0;j<g;j++) {
			tmp *= pow(x,DEV);
			tmp = tmp % ANS;
		}
		tmp *= pow(x,h);
		tmp = tmp % ANS;

		if (DEBUG) printf("%hhd ^ %ld = %ld\n",x,a,tmp);
		ans += tmp;
		ans = ans % ANS;
	}

	printf("%ld\n",ans);
	
	return 0;
}