const MOD: u64 = 1000003;
fn main() {
    proconio::input! {
        x: u64,
        n: u64,
        a: [u64; n],
    }
    let ans = a.iter().map(|a| pow_mod(x, *a, MOD)).fold(0, |acc, x| {
        eprintln!("{x}");
        (acc + x) % MOD
    });
    println!("{ans}");
}

fn pow_mod(a: u64, b: u64, c: u64) -> u64 {
    let mut a = a;
    let mut b = b;
    let mut res = 1;
    while b > 0 {
        if b % 2 == 1 {
            res = (res * a) % c;
        }
        a = (a * a) % c;
        b /= 2;
    }
    res
}