#include <bits/stdc++.h>
#pragma GCC optimize("O3")
using namespace std;
using ll = long long;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define rep2(i,m,n) for (int i = (m); i < (n); ++i)
#define rep3(i,a,b) for (int i = (a); i >= (b); --i)
#define all(x) (x).begin(),(x).end()
inline int popcount(const int x) { return __builtin_popcount(x);}
inline ll popcount(const ll x) { return __builtin_popcountll(x);}
template<class T> void chmin(T &a, const T &b) noexcept { if (b < a) a = b;}
template<class T> void chmax(T &a, const T &b) noexcept { if (a < b) a = b;}
template<class T> void drop(const T &x) { std::cout<<x<<endl; exit(0);}
void debug_out() { std::cout << "\n";}
template<class T, class... Args> void debug_out(const T &x, const Args &... args) { std::cout<<x<< " "; debug_out(args...);}
#ifdef _DEBUG
  #define debug(...) debug_out(__VA_ARGS__)
#else
  #define debug(...) 
#endif

struct InitIO{
  InitIO() {
    std::cin.tie(nullptr);
    std::ios_base::sync_with_stdio(false);
    std::cout << std::fixed << std::setprecision(15);
  }
}init_io;

const ll INF = 1LL<<60;

int main() {
  int n;
  string s;
  cin >> n >> s;
  vector<ll> a(n), SE(n+1), SP(n+1); //enemy, MP
  rep(i,n) {
    SE[i+1] += SE[i];
    if (s[i] == 'E') SE[i+1]++;
  }
  rep(i,n) {
    cin >> a[i];
    SP[i+1] += SP[i] + a[i];
  }
  vector<ll> dp(n+5, INF); //j体倒すのに必要な最小MP
  dp[0] = 0;
  rep(i,n) { //iから放つ
    rep2(j, 1, n+1) {
      int k = lower_bound(all(SE), j + SE[i]) - SE.begin();
      if (k >= n+1) break;
      chmin(dp[j], SP[k] - SP[i]);
    }
  }

  int q;
  cin >> q;
  while(q--) {
    ll k;
    cin >> k;
    int ans = upper_bound(all(dp), k) - dp.begin();
    ans--;
    cout << ans << "\n";
  }
  return 0;
}