#include <iostream>
#include <vector>
#include <string>
#include <cstring>
#include <math.h>
#include <cmath>
#include <limits.h>
#include <map>
#include <set>
#include <queue>
#include <algorithm>
#include <functional>
#include <stdio.h>
using namespace std;

long long MOD = 1000003;


long long M[100000000];

int main() {
    
    int x,N;
    cin >> x >> N;
    
    
    M[0] = 1;
    long long a = 1;
    for ( int i = 1; i <= 100000000; i++ ) {
        a *= x;
        a %= MOD;
        M[i] = a;
    }
    
    long long ans =  0;
    for ( int i = 0; i < N; i++ ) {
        cin >> a;
        ans += M[a];
        ans %= MOD;
    }
    
    cout << ans << endl;
    
    return 0;
}