#include <stdio.h>
#define MOD	(1000003);

int main(void){
	int i;
	int x,n;
	
	long long int a;
	long long int sum = 0;
	long long int mul = 1;
	long long int arr[10005];
	
	scanf("%lld %d", &x, &n);
	
	for(i=0;i<=10000;i++){
		arr[i] = mul % MOD;
		mul = (mul*x) % MOD;
	}
	for(i=0;i<n;i++){
		mul = 1;
		scanf("%lld", &a);
		
		while(10000 < a){
			mul = (mul * arr[10000]) % MOD;
			a -= 10000;
		}
		
		mul = (mul * arr[(int)a]) % MOD;
		sum = (sum+mul)%MOD;
	}
	
	
	printf("%lld\n", sum);
	return 0;
}