#include "bits/stdc++.h"
using namespace std;
using ll     = long long;
using pii    = pair<int, int>;
using pll    = pair<ll, ll>;
using vi     = vector<int>;
using vl     = vector<ll>;
using vvi    = vector<vi>;
using vvl    = vector<vl>;
const ll INF = 1LL << 60;
const ll MOD = 1000000007;
template <class T>
bool chmax(T &a, const T &b) {
    return (a < b) ? (a = b, 1) : 0;
}
template <class T>
bool chmin(T &a, const T &b) {
    return (b < a) ? (a = b, 1) : 0;
}
template <class C>
void print(const C &c, std::ostream &os = std::cout) {
    std::copy(std::begin(c), std::end(c), std::ostream_iterator<typename C::value_type>(os, " "));
    os << std::endl;
}

int main() {
    int n;
    cin >> n;
    string s;
    cin >> s;
    vl a(n);
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
    }
    int q;
    cin >> q;
    vl k(q);
    for (int i = 0; i < q; ++i) {
        cin >> k[i];
    }
    vi enemy(n, 0);
    for (int i = 0; i < n; ++i) {
        if (s[i] == 'E')
            enemy[i]++;
        if (i)
            enemy[i] += enemy[i - 1];
    }
    for (int i = 0; i < q; ++i) {
        int l   = 0;
        int sum = 0;
        int ret = 0;
        for (int r = 0; r < n; ++r) {
            sum += a[r];
            while (sum > k[i]) {
                sum -= a[l];
                l++;
            }
            chmax(ret, enemy[r] - (l == 0 ? 0 : enemy[l - 1]));
        }
        cout << ret << "\n";
    }
    return 0;
}