#include <iostream>
//#include<atcoder/all>
#include <numeric>
#include <cmath>
#include <limits>
#include <stdio.h>
#include <iomanip>
#include <string> 
#include <vector>
#include <algorithm>
#include <utility> 
#include <tuple> 
#include <cstdint> 
#include <cstdio> 
#include <map> 
#include <queue>
#include <set> 
#include <stack> 
#include <deque> 
#include <unordered_map> 
#include <unordered_set>
#include <bitset> 
#include <cctype>
//using namespace atcoder;
using namespace std;
using ll = long long;
#define all(A) A.begin(),A.end()
using vll = vector<ll>;
#define rep(i, n) for (long long i = 0; i < (long long)(n); i++)
using Graph = vector<vector<vector<pair<ll, ll>>>>;

int main() {
	ll mod = 1000003;
	ll X, N;
	cin >> X >> N;
	vll XD(32);
	XD[0] = X;
	rep(i, 31) {
		XD[i + 1] = (XD[i] * XD[i]) % mod;
	}
	ll an = 0;
	rep(i, N) {
		ll A;
		cin >> A;
		ll k = 1;
		if (A == 0)an++;
		else {
			rep(m, 32) {
				if (A % 2 != 0) {
					k *= XD[m];
					k %= mod;
				}
				A /= 2;
			}
			an += k;
			an %= mod;
		}
	}
	cout << an << endl;
}