#define rep(i, n) for (int i = 0; i < (int)(n); i++)
typedef long long ll;

#include<iostream>
#include<vector>
using namespace std;

#define MOD 998244353

int main(){
  ll n,q;
  cin>>n>>q;
  
  vector<ll> A(n+1);
  A[0]=0;
  rep(i,n) cin>>A[i+1];
  
  ll dp[n+1][n+1];
  rep(i,n+1) dp[i][i]=1;
  for(int i=1;i<=n;i++) dp[i][0]=dp[i-1][0]*(A[i]-1)%MOD;     
     
  for(int i=2;i<=n;i++){
    for(int j=1;j<n;j++){
      dp[i][j]=(dp[i-1][j-1]+dp[i-1][j]*(A[i]-1)%MOD)%MOD;
    }
  }
  
  int x;
  rep(i,q){
    cin>>x;
    cout<<dp[n][x]<<endl;
  }

  return 0;
}