#!/usr/bin/env python3
#fileencoding: utf-8

x, _ = [int(i) for i in input().strip().split(" ")]
mod = 1000003
tmp = 1
count = 0
memo = []
memo.append(1)
while True:
    tmp = (tmp * x) % mod
    count += 1
    if tmp == 1:
        break
    memo.append(tmp)

ans = 0
for i in input().strip().split(" "):
    a = int(i)%count
    ans += memo[a]
    ans %= mod
print(ans)