#include <iostream>
#include <string>
#include <vector>
#define llint long long
#define inf 1e18

using namespace std;

llint n, Q;
llint a[2005];
string s;

int main(void)
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n >> s;
	for(int i = 1; i <= n; i++) cin >> a[i];
	a[n+1] = inf;
	
	s = "#" + s;
	
	cin >> Q;
	llint k;
	for(int q = 0; q < Q; q++){
		cin >> k;
		llint r = 0, sum = 0, cnt = 0, ans = 0;
		for(int l = 1; l <= n; l++){
			while(sum <= k){
				sum += a[r+1];
				r++;
				if(s[r] == 'E') cnt++;
			}
			//cout << l << " " << r << endl;
			llint tmp = cnt;
			if(s[r] == 'E') tmp--;
			ans = max(ans, tmp);
			if(s[l] == 'E') cnt--;
			sum -= a[l];
		}
		cout << ans << endl;
	}
	
	return 0;
}