#region Header
#!/usr/bin/env python3
# from typing import *

import sys
import io
import math
import collections
import decimal
import itertools
from queue import PriorityQueue
import bisect
import heapq

def input():
    return sys.stdin.readline()[:-1]

sys.setrecursionlimit(1000000)
#endregion

# _INPUT = """4 3
# 1 3 3 3
# 3 1 4
# """
# sys.stdin = io.StringIO(_INPUT)

MOD = 998244353

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

    dp = [0 for _ in range(N+1)]
    dp[0] = 1
    for i in range(N):
        dp1 = [0 for _ in range(N+1)]
        for k in range(N+1):
            if dp[k] > 0:
                dp1[k] = (dp1[k] + dp[k] * (A[i] - 1)) % MOD
                dp1[k+1] = (dp1[k+1] + dp[k]) % MOD
        dp = dp1

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


if __name__ == '__main__':
    main()