N, Q = map(int, input().split())
A = list(map(int, input().split()))
mod = 998244353
for i in range(N):
    A[i] -= 1
dp = [0 for _ in range(N + 1)]
dp[0] = 1
for i in range(N):
    dp[i+1] = 1
    for j in range(i, 0, -1):
        dp[j] = (dp[j-1] + A[i] * dp[j]) % mod
    dp[0] *= A[i]
    dp[0] %= mod
B = list(map(int, input().split()))
for i in range(Q):
    print(dp[B[i]])