using System;
using System.Text;

public class Program
{
    private int N;
    private char[] S;
    private int[] A;
    private int Q;
    private int[] K;

    private long[] Sum;
    private int[] Cnt;

    public void Solve()
    {
        var sc = new Scanner();
        N = sc.NextInt();
        S = sc.Next().ToCharArray();
        A = sc.IntArray();
        Q = sc.NextInt();
        K = sc.IntArray();

        Sum = new long[N + 1];
        Cnt = new int[N + 1];
        for (int i = 0; i < N; i++)
        {
            Sum[i + 1] = Sum[i] + A[i];
            Cnt[i + 1] = Cnt[i] + (S[i] == 'E' ? 1 : 0);
        }

        var sb = new StringBuilder();
        for (int i = 0; i < Q; i++)
        {
            sb.AppendLine(Query(K[i]).ToString());
        }

        Console.Write(sb.ToString());
    }

    private int Query(int k)
    {
        int ans = 0;
        // 左端
        for (int i = 0; i <= N; i++)
        {
            // 右端
            int ok = i;
            int ng = N + 1;
            while (ng - ok > 1)
            {
                int med = (ng + ok) / 2;
                if (Sum[med] - Sum[i] <= k)
                {
                    ok = med;
                }
                else
                {
                    ng = med;
                }
            }

            ans = Math.Max(ans, Cnt[ok] - Cnt[i]);
        }

        return ans;
    }

    public static void Main(string[] args)
    {
        new Program().Solve();
    }
}

class Scanner
{
    public Scanner()
    {
        _pos = 0;
        _line = new string[0];
    }

    const char Separator = ' ';
    private int _pos;
    private string[] _line;

    #region スペース区切りで取得

    public string Next()
    {
        if (_pos >= _line.Length)
        {
            _line = Console.ReadLine().Split(Separator);
            _pos = 0;
        }

        return _line[_pos++];
    }

    public int NextInt()
    {
        return int.Parse(Next());
    }

    public long NextLong()
    {
        return long.Parse(Next());
    }

    public double NextDouble()
    {
        return double.Parse(Next());
    }

    #endregion

    #region 型変換

    private int[] ToIntArray(string[] array)
    {
        var result = new int[array.Length];
        for (int i = 0; i < array.Length; i++)
        {
            result[i] = int.Parse(array[i]);
        }

        return result;
    }

    private long[] ToLongArray(string[] array)
    {
        var result = new long[array.Length];
        for (int i = 0; i < array.Length; i++)
        {
            result[i] = long.Parse(array[i]);
        }

        return result;
    }

    private double[] ToDoubleArray(string[] array)
    {
        var result = new double[array.Length];
        for (int i = 0; i < array.Length; i++)
        {
            result[i] = double.Parse(array[i]);
        }

        return result;
    }

    #endregion

    #region 配列取得

    public string[] Array()
    {
        if (_pos >= _line.Length)
            _line = Console.ReadLine().Split(Separator);

        _pos = _line.Length;
        return _line;
    }

    public int[] IntArray()
    {
        return ToIntArray(Array());
    }

    public long[] LongArray()
    {
        return ToLongArray(Array());
    }

    public double[] DoubleArray()
    {
        return ToDoubleArray(Array());
    }

    #endregion
}