import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        char[] enemies = sc.next().toCharArray();
        long[] sums = new long[n + 1];
        int[] counts = new int[n + 1];
        for (int i = 1; i <= n; i++) {
            sums[i] = sums[i - 1] + sc.nextInt();
            counts[i] = counts[i - 1];
            if (enemies[i - 1] == 'E') {
                counts[i]++;
            }
        }
        TreeMap<Long, Integer> matrix = new TreeMap<>();
        matrix.put(0L, 0);
        for (int i = 0; i < n; i++) {
            for (int j = i + 1; j <= n; j++) {
                long s = sums[j] - sums[i];
                int c = counts[j] - counts[i];
                if (matrix.floorEntry(s).getValue() < c) {
                    matrix.put(s, c);
                    Long key = s;
                    while ((key = matrix.higherKey(key)) != null) {
                        if (matrix.get(key) <= c) {
                            matrix.remove(key);
                        } else {
                            break;
                        }
                    }
                }
            }
        }
        int q = sc.nextInt();
        StringBuilder sb = new StringBuilder();
        while (q-- > 0) {
            sb.append(matrix.floorEntry(sc.nextLong()).getValue()).append("\n");
        }
        System.out.print(sb);
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}