MOD = 998244353
N, Q = map(int, input().split())
A = list(map(int, input().split()))
B = list(map(int, input().split()))

dp = [0] * (N + 2)
dp[0] = 1
for i in range(N):
    for j in reversed(range(N + 1)):
        dp[j] += dp[j - 1] * (A[i] - 1)
        dp[j] %= MOD
dp = dp[::-1][1:]
for b in B:
    print(dp[b])