#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;
    if(K >= SK[N]) {
      cout << SE[N] << '\n';
      continue;
    }
    ll ans = 0;
    int l = 0, r = 0;
    while(true) {
      while(r <= N && SK[r] - SK[l] <= K) ++r;
      if(r == N + 1) break;
      ans = max(ans, SE[r-1] - SE[l]);
      if(l == r) ++r;
      ++l;
    }
    cout << ans << '\n';
  }

  return 0;
}