#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <iomanip>
#include <cmath>
#include <map>
using namespace std;
using ll = long long;
constexpr ll MOD = 1e9 + 7;
constexpr int INF = 1 << 30;

int N, Q, K;
string S;

int main()
{
  cin.tie(0);
  ios_base::sync_with_stdio(false);
  cin >> N >> S;
  vector<ll> A(N), SE(N+1), SK(N+1);
  for(int i = 0; i < N; ++i) cin >> A[i];
  for(int i = 0; i < N; ++i) {
    SE[i+1] = SE[i] + (S[i] == 'E');
    SK[i+1] = SK[i] + A[i];
  }

  cin >> Q;
  for(int i = 0; i < Q; ++i) {
    cin >> K;
    ll ans = 0;
    for(int j = 0; j < N; ++j) {
      for(int k = j + 1; k <= N; ++k) {
        if(SK[k] - SK[j] > K) break;
        ans = max(ans, SE[k] - SE[j]);
      }
    }
    cout << ans << '\n';
  }

  return 0;
}