using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
using System.Globalization;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    static int[] NMi => ReadLine().Split().Select(c => int.Parse(c) - 1).ToArray();
    static int[][] NMap(int n) => Enumerable.Repeat(0, n).Select(_ => NMi).ToArray();
    static string[] SList(long n) => Enumerable.Repeat(0, (int)n).Select(_ => ReadLine()).ToArray();
    static long[] LList(long n) => Enumerable.Repeat(0, (int)n).Select(_ => long.Parse(ReadLine())).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (n, q) = (c[0], c[1]);
        var a = NList;
        var b = NList;
        var mod = 998_244_353;
        var dp = new long[n + 1];
        var ndp = new long[n + 1];
        dp[0] = 1;
        for (var i = 0; i < n; ++i)
        {
            for (var j = 0; j <= n; ++j) ndp[j] = 0;
            for (var j = 0; j < n; ++j)
            {
                ndp[j] = (ndp[j] + dp[j] * (a[i] - 1) % mod) % mod;
                ndp[j + 1] = (ndp[j + 1] + dp[j] % mod) % mod;
            }
            (dp, ndp) = (ndp, dp);
        }
        var ans = new long[q];
        for (var i = 0; i < q; ++i) ans[i] = dp[b[i]];
        WriteLine(string.Join("\n", ans));
    }
}