import java.io.*;
import java.util.StringTokenizer;
import java.math.BigInteger;

class Main{

static final PrintWriter out=new PrintWriter(System.out);
static final int mod=1000003;

public static void main(String[] args) throws IOException{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
String line="";
while((line=br.readLine())!=null&&!line.isEmpty()){
StringTokenizer st1=new StringTokenizer(line);
int n=Integer.parseInt(st1.nextToken());
line=br.readLine();
StringTokenizer st2=new StringTokenizer(line);
int ans=0;
while(st2.hasMoreTokens()){
int a=Integer.parseInt(st2.nextToken());
ans+=pow_mod_1000003(n,a);
ans%=mod;
}
out.println(ans);
out.flush();
}
}

private static int pow_mod_1000003(int n,int a){
int p=1;
if(a==0) return 1;
if(n==0) return 0;
if(n==1) return 1;
for(int i=0;i<=a;i++){
if(p>=mod){
return (pow_mod_1000003(p%mod,(int)a/i)*(int)Math.pow(n,a%i))%mod;
}
if(i==a) break;
p*=n;
}
return p;
}
}