#include <bits/stdc++.h>
using namespace std;
#define M 1000003
int main() {
	long long x;
	int n;
	cin >> x >> n;
	vector<long long> a(n);
	for (int i = 0;i < n;i++) {
		cin >> a[i];
	}

	vector<long long> nx(M+1);
	nx[0] = 1;
	int da;
	for (int i = 1;i <= M;i++) {
		nx[i] = (nx[i - 1] * x) % M;
		if (nx[i] == 1) {
			da = i;
		}
	}

	long long sum = 0;
	for (int i = 0;i < n;i++) {
		sum += nx[a[i] % da];
		sum %= M;
	}
	cout << sum << endl;


	return 0;
}