using System;

​

class Program

{

    static void Main()

    {

        int number = 1;

        int machpela = 1;

        int count = 0;

​

        Console.WriteLine("Enter numbers (0 to stop):");

​

        while (number != 0)

        {

            number = int.Parse(Console.ReadLine());

​

            if (number != 0 && number % 2 == 0)

            {

                machpela = machpela * number;

                count = count + 1;

            }

        }

​

        if (count > 0)

        {

            Console.WriteLine("machpela of even numbers: " + machpela);

        }

​

    }

}

​