import sys
input = sys.stdin.readline

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

mod=998244353

DP=[0]*(N+3)
DP[0]=1

for a in A:
    for i in range(N,-1,-1):
        DP[i]=(DP[i]*(a-1)+DP[i-1])%mod

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