MOD = 998244353

N, Q = map(int, input().split())
A = list(map(int, input().split()))
B = list(map(int, input().split()))

dp = [0] * (N + 1)
dp[0] = 1

for i in range(N):
    ai = A[i]
    a_minus_1 = ai - 1
    new_dp = [0] * (N + 1)
    for j in range(i + 2):
        new_dp[j] = (new_dp[j] + dp[j] * a_minus_1) % MOD
        if j >= 1:
            new_dp[j] = (new_dp[j] + dp[j - 1]) % MOD
    dp = new_dp

for b in B:
    print(dp[b])