#include <bits/stdc++.h>

using namespace std;

using ll = long long;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int n;
    cin >> n;
    string s;
    cin >> s;
    vector<ll> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];

    auto solve = [&](ll K) -> int {
        ll sum = 0;
        int ans = 0, cnt = 0;

        for (int i = 0, j = 0; i < n; i++) {
            while (j < n) {
                if (sum + a[j] > K) break;
                sum += a[j];
                cnt += (s[j] == 'E');
                j++;
            }

            ans = max(ans, cnt);

            if (i == j) {
                j++;
                continue;
            }

            cnt -= (s[i] == 'E');
            sum -= a[i];
        }
        return ans;
    };

    int q;
    cin >> q;
    for (int i = 0; i < q; i++) {
        ll K;
        cin >> K;
        cout << solve(K) << "\n";
    }
    return 0;
}