MOD = 998244353
N,Q = map(int,input().split())
A = [0]+list(map(int,input().split()))
B = [0]+list(map(int,input().split()))
dp = [[0 for _ in range(N+1)] for _ in range(N+1)]
dp[1][0] = A[1]-1
dp[1][1] = 1
for i in range(2,N+1):
    dp[i][0] = ((A[i]-1)*dp[i-1][0])%MOD
    dp[i][i] = 1
for i in range(2,N+1):
    for j in range(1,i):
        dp[i][j] = (dp[i-1][j]*(A[i]-1)+dp[i-1][j-1])%MOD
for j in range(1,Q+1):
    print(dp[N][B[j]])