const DIVISOR: u64 = 1_000_003;

fn main() {
    let mut input = String::new();
    std::io::Read::read_to_string(&mut std::io::stdin(), &mut input).ok();
    let input: Vec<u64> = input
        .split_whitespace()
        .map(|n| n.parse().unwrap())
        .collect();

    let x = input[0];
    let mut answer = 0;

    for &a in &input[2..] {
        let mut a = a;
        let mut pow = x;
        let mut product = 1;

        while a > 0 {
            if a & 1 == 1 {
                product *= pow;
                product %= DIVISOR;
            }
            pow *= pow;
            pow %= DIVISOR;

            a >>= 1;
        }

        answer += product;
        answer %= DIVISOR;
    }

    println!("{}", answer);
}