task Sergey

            Random y = new Random();
            int a1 = y.Next(0, 101);
            string a = a1.ToString();

            Random z = new Random();
            int b1 = z.Next(0, 101);
            string b = b1.ToString();

            textBox1.Text = a;
            Random rt1 = new Random();
            int rt = rt1.Next(1, 4);
            if (rt == 1) textBox1.Text = textBox1.Text + "+";
            if (rt == 2) textBox1.Text = textBox1.Text + "-";
            if (rt == 3) textBox1.Text = textBox1.Text + "*";

            textBox1.Text = textBox1.Text + b1;






            Random r1 = new Random();
            int r11 = r1.Next(0, 10001);
            string r111 = r11.ToString();
            radioButton1.Text = r111;


            Random r2 = new Random();
            int r22 = r2.Next(0, 10001);
            string r222 = r22.ToString();
            radioButton2.Text = r222;

            Random r3 = new Random();
            int r33 = r3.Next(0, 10001);
            string r333 = r33.ToString();
            radioButton3.Text = r333;

            int abp = a1 + b1;
            string ab1 = abp.ToString();

            int abm = a1 - b1;
            string ab2 = abm.ToString();

            int abu = (a1 * b1);
            string ab3 = abu.ToString();





            Random rand = new Random();
            int rand1 = rand.Next(1, 4);
            if ((rand1 == 1) && (rt == 1)) radioButton1.Text = ab1;
            if ((rand1 == 1) && (rt == 2)) radioButton1.Text = ab2;
            if ((rand1 == 1) && (rt == 3)) radioButton1.Text = ab3;


            if ((rand1 == 2) && (rt == 1)) radioButton2.Text = ab1;
            if ((rand1 == 2) && (rt == 2)) radioButton2.Text = ab2;
            if ((rand1 == 2) && (rt == 3)) radioButton2.Text = ab3;



            if ((rand1 == 3) && (rt == 1)) radioButton3.Text = ab1;
            if ((rand1 == 3) && (rt == 2)) radioButton3.Text = ab2;
            if ((rand1 == 3) && (rt == 3)) radioButton3.Text = ab3;





            foreach (RadioButton control in this.Controls.OfType<RadioButton>())
            {
                control.Checked = false;
            }
            timer1.Stop();
        }
    }
}