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

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        char[] inputs = sc.next().toCharArray();
        int[] enemies = new int[n + 1];
        long[] sums = new long[n + 1];
        for (int i = 1; i <= n; i++) {
            sums[i] = sums[i - 1] + sc.nextInt();
            enemies[i] = enemies[i - 1];
            if (inputs[i - 1] == 'E') {
                enemies[i]++;
            }
        }
        TreeMap<Long, Integer> counts = new TreeMap<>();
        counts.put(0L, 0);
        for (int i = 0; i < n; i++) {
            for (int j = i + 1; j <= n; j++) {
                Long x = sums[j] - sums[i];
                int y = enemies[j] - enemies[i];
                if (counts.floorEntry(x).getValue() >= y) {
                    continue;
                }
                counts.put(x, y);
                while ((x = counts.higherKey(x)) != null) {
                    if (counts.get(x) <= y) {
                        counts.remove(x);
                    } else {
                        break;
                    }
                }
            }
        }
        int q = sc.nextInt();
        StringBuilder sb = new StringBuilder();
        while(q-- > 0) {
            sb.append(counts.floorEntry(sc.nextLong()).getValue()).append("\n");
        }
        System.out.print(sb);
    }
} 
class Utilities {
    static String arrayToLineString(Object[] arr) {
        return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));
    }
    
    static String arrayToLineString(int[] arr) {
        return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));
    }
}
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 int[] nextIntArray() throws Exception {
        return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}