#define _USE_MATH_DEFINES
#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <array>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
#include <iterator>
#include <memory>
#include <regex>
using namespace std;

const long long INF = LLONG_MAX / 2;

int main()
{
    int n;
    string s;
    cin >> n >> s;
    vector<int> a(n);
    for(int i=0; i<n; ++i)
        cin >> a[i];

    vector<long long> v(n+1, INF);
    v[0] = 0;
    for(int i=0; i<n; ++i){
        long long sum = 0;
        int cnt = 0;
        for(int j=i; j<n; ++j){
            sum += a[j];
            if(s[j] == 'E')
                ++ cnt;
            v[cnt] = min(v[cnt], sum);
        }
    }

    int q;
    cin >> q;
    while(--q >= 0){
        long long x;
        cin >> x;
        int ans = upper_bound(v.begin(), v.end(), x) - v.begin() - 1;
        cout << ans << endl;
    }

    return 0;
}