using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("this is a programme that tells you if the answer of 2 numbers multiply is under 20");

        Console.WriteLine("enter the first number");

        int N1;

        N1 = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("enter the second number");

        int N2;

        N2 = Convert.ToInt32(Console.ReadLine());

        if (N1 < 20 & N2 <20)

        {

            int Total;

            Total = N1 * N2;

            Console.WriteLine("the answer is; " + Total);

        }

        else

        {

            Console.WriteLine("both number has to be under 20");

        }

    }

}