protected void btnGetFibonacci_Click(object sender, EventArgs e)
        {
            litGetFibonacciResult.Text = litGetFibonacciError.Text = "";
            try
            {
                var skipValue = long.Parse(txtGetFibonacciSkip.Text);
                var takeValue = long.Parse(txtGetFibonacciTake.Text);
                var results   = client.GetFibonacciNumbers(skipValue, takeValue);

                litGetFibonacciResult.Text = string.Join(", ", results.ConvertAll(x => x.ToString()).ToArray());
            }
            catch (Exception ex)
            {
                litGetFibonacciError.Text = ex.Message;
            }
        }