#include <bits/stdc++.h>
using namespace std;

template<typename T> int SumDigit(T N) {
	int res = 0;
	while(N > 0) { res += (N % 10); N /= 10; }
	return res;
}

int main(){
    int N, Q;
    string S;
    cin >> N >> S;
    vector<long long> HP(N);
    vector<long long> sum(N+1, 0);
    vector<int> ene(N+1, 0);
    for (int i = 0; i < N; i++) {
        cin >> HP[i];
        sum[i+1] = sum[i] + HP[i];
        ene[i+1] = ene[i];
        if (S[i] == 'E') ene[i+1]++;
    }

    cin >> Q;
    for (int i = 0; i < Q; i++) {
        long long K; cin >> K;
        if (sum[N] <= K) {
            cout << ene[N] << endl;
            continue;
        }
        int ans = 0;
        for (int j = 0; j <= N; j++) {
            long long k = K + sum[j];
            int m = lower_bound(sum.begin(), sum.end(), k) - sum.begin();
            int res = ene[m]-ene[j];
            if (k < sum[m] && m > 0) res = ene[m-1] - ene[j];
            ans = max(ans, res);
        }
        cout << ans << endl;
    }
    return 0;
}