#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<algorithm>

using namespace std;

#define int long long
#define endl "\n"

constexpr long long INF = (long long)1e18;
constexpr long long MOD = 1'000'000'007; 

string yn(bool f){return f?"Yes":"No";}
string YN(bool f){return f?"YES":"NO";}



signed main(){
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
	cout<<fixed<<setprecision(10);
	
	int N, Q;
	vector<int> A;
	vector<int> temp, con;
	string S;
	
	cin>>N>>S;
	
	A.resize(N+1);
	temp.resize(N+1, INF);
	con.resize(N+1);
	
	for(int i = 0; i < N; i++){
		cin>>A[i+1];
		if(S[i] == 'E') con[i+1]++;
		
		con[i+1] += con[i];
		A[i+1] += A[i];
		// cout<<"A "<<i<<" "<<A[i+1]<<endl;
	}
	
	for(int i = 0; i < N; i++){
		for(int j = i + 1; j <= N; j++){
			temp[con[j]-con[i]] = min(temp[con[j]-con[i]], A[j] - A[i]);
			// cout<<"i = "<<i<<" j = "<<j<<" A "<<A[j]<<" - "<<A[i]<<endl;
		}
	}
	
	temp[0] = 0;
	
	for(int i = N-1; i > 0; i--){
		// cout<<"i "<<i-1<<" "<<temp[i-1]<<endl;
		temp[i-1] = min(temp[i-1], temp[i]);
		// cout<<"i "<<i-1<<" "<<temp[i-1]<<endl;
	}
	
	cin>>Q;
	
	for(int i = 0; i < Q; i++){
		int K, ans = 0;
		
		cin>>K;
		
		ans = upper_bound(temp.begin(), temp.end(), K) - temp.begin();
		
		cout<<ans-1<<endl;
	}
	
	return 0;
}