import math


class No16:
    x = 0
    n = 0
    num_list = []

    def __init__(self):
        self.x, self.n = map(int, input().split(" "))
        self.num_list = list(map(int, input().split(" ")))

    def solve(self):
        ans = 0
        for y in self.num_list:
            ans += self.first_pow(self.x, y, 1000003)
        return ans

    def first_pow(self, x, y, m):
        if y == 0:
            return 1
        elif y % 2 == 0:
            return self.first_pow(x * x % m, y // 2, m)
        else:
            return x * self.first_pow(x, y - 1, m) % m


if __name__ == "__main__":
    que = No16()
    ans = que.solve()
    print(ans)