#include <iostream>
#include <vector>

#define FORR(i,b,e) for(int i=(b);i<(int)(e);++i)
#define FOR(i,e) FORR(i,0,e)
#define dump(var) cerr << #var ": " << var << "\n"
#define dumpc(con) for(auto& e: con) cerr << e << " "; cerr<<"\n"

typedef long long ll;
typedef unsigned long long ull;

const ll MODD = 1000003;

using namespace std;

ll x, N;
vector<ll> pp;


int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);

    cin >> x >> N;

    pp.reserve(100);
    pp.push_back(x);
    ll v = x*x;
    int ex = 1; 
    pp.push_back(v);
    while (ex < 100000000) {
        v = (v * v) % MODD;
        ex *= 2;
        pp.push_back(v);
    }
    
    ll ans = 0;
    FOR(i, N) {
        int a;
        cin >> a;
        ll v = 1;
        auto p = pp.begin();
        while (a) {
            if (a&1) v = (v * (*p)) % MODD;
            a >>= 1;
            p++;
        }
        ans = (ans + v) % MODD;
    }
    cout << ans << endl;

    return 0;
}