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

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