private void NumToTextButton_Click(object sender, EventArgs e)
        {
            var svc    = new FirstSvc.FirstService();
            var number = Convert.ToInt32(NameTextBox.Text);
            var result = svc.NumToEng(number);

            MessageBox.Show(result);
        }
        private void Add100Button_Click(object sender, EventArgs e)
        {
            var svc = new FirstSvc.FirstService();
            // Call Add100 here
            var number = Convert.ToInt32(NameTextBox.Text);
            var result = svc.Add100(number);

            MessageBox.Show(result);
        }