mod = 998244353

n, q = gets.to_s.split.map{|t| t.to_i }
a    = gets.to_s.split.map{|t| t.to_i }
b    = gets.to_s.split.map{|t| t.to_i }

dp = Array.new(n+1){ [0] * (n+2) }
dp[0][0] = 1

a.each_with_index do |t, i|
  
  i.downto(0) do |j|
    dp_cur = dp[i][j]
    dp[i+1][j] += dp_cur * (t - 1)
    dp[i+1][j+1] += dp_cur
  end
end

b.map!{|t| dp[n][t] % mod }

puts b