import sys
input = sys.stdin.readline
MOD = 998244353
N,Q=map(int, input().split())
A=list(map(int, input().split()))

dp=[0]*(N+1)
dp[0]=1
for k_max,a in enumerate(A,start=1):
    a-=1
    for k in range(k_max)[::-1]:
        dp[k+1]+=dp[k]*a
        dp[k+1]%=MOD

B=list(map(int, input().split()))
for k in B:
    print(dp[N-k])