#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define F first
#define S second
#define pii pair<int, int>
#define eb emplace_back
#define all(v) v.begin(), v.end()
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define rep3(i, l, n) for (int i = l; i < (n); ++i)
#define sz(v) (int)v.size()
#define inf (int)(1e9+7)
#define INF (ll)(1e18)
#define abs(x) (x >= 0 ? x : -(x))
#define ceil(a, b) a / b + !!(a % b)
template<typename T1, typename T2> inline bool chmin(T1 &a, T2 b) { if (a > b) { a = b; return 1; } return 0; }
template<typename T1, typename T2> inline bool chmax(T1 &a, T2 b) { if (a < b) { a = b; return 1; } return 0; }
template<typename T> T gcd(T a, T b) { if (b == 0) return a; return gcd(b, a % b); }
template<typename T> T lcm(T a, T b) { return a / gcd(a, b) * b; }







int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    
    
    int n;
    cin >> n;
    string s;
    cin >> s;
    
    vector<ll> e(n + 1);
    rep(i, n) if (s[i] == 'E') e[i + 1] = 1;
    rep(i, n) e[i + 1] += e[i];
    // rep(i, n + 1) cout << e[i] << " "; cout << endl;
    
    vector<ll> a(n + 1); // 2000
    rep(i, n) cin >> a[i + 1];
    rep(i, n) a[i + 1] += a[i];
    // cout << endl;rep(i, n + 1) cout << a[i] << " "; cout << endl;
    
    int q;
    cin >> q; // 2000
    rep(i, q) {
        int k;
        cin >> k;
        int ans = 0;
        rep(j, n + 1) {
            auto it = upper_bound(a.begin() + j, a.end(), a[j] + k) - a.begin();
            --it;
            // cout << it << " ";
            chmax(ans, e[it] - e[j]);
        }
        // cout << endl;
        // cout << "ans ";
        cout << ans << endl;
    }
    
    
}