else

            {
                while (i < d.Length)
                {
                    string current = "";
                    for (int j = i; j < i + maxLength; j++)
                    {
                        if (j < d.Length)
                        {
                            // current += d[j];
                            current = d.Substring(i, j - i + 1);

                            if (D.ContainsKey(current))
                            {

                                temp2 = D[current];
                                foreach (KeyValuePair<int, int> a in temp2)
                                {
                                    if (a.Key >= first && a.Key <= last)
                                        sum += a.Value;
                                }
                            }
                        }
                        else break;
                    }
                    i++;
                }
                arr[s_i] = sum;
                s_i++;
            }