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

#define int long long

signed main(){
    int n;
    string s;
    cin >> n >> s;

    int rui1[2010] = {};
    int rui2[2010] = {};

    for(int i = 0;i < n;i++){
        cin >> rui1[i+1];
        rui1[i+1] += rui1[i];
        if(s[i] == 'E') rui2[i+1]++;
        rui2[i+1] += rui2[i];
    }

    int q;
    cin >> q;

    int query[2010];
    for(int i = 0;i < q;i++){
        cin >> query[i];
    }

    for(int p = 0;p < q;p++){
        int num = query[p];

        int ans = 0;
        for(int i = 0;i < n;i++){
            int l = i, r = n+1;
            while(r-l > 1){
                int mid = (l+r)/2;
                if(rui1[mid]-rui1[i] <= num){
                    l = mid;
                }else{
                    r = mid;
                }
            }

            ans = max(ans, rui2[l]-rui2[i]);
        }
        cout << ans << endl;
    }

    return 0;
}