private void button1_Click(object sender, EventArgs e)
        {

            int[] A = new int[12];
            Random rnd = new Random();
            for (int t = 0; t < 12; t++)
            {
                A[t]=(rnd.Next(-100, 100));
                textBox1.Text += String.Format("{0}", A[t]) + "   ";
            }
            int[] B = { A[0], A[11], A[1], A[10], A[2], A[9], A[3], A[8], A[4], A[7], A[5], A[6] };

            textBox1.Text += String.Format("\r\n");

            for (int t = 0; t < 12; t++) textBox1.Text += String.Format("{0}", B[t]) + "   ";


        }