{
    class Program
    {
        static void Main(string[] args)
        {
            int x;
            int y;
            x = 8;
            y = x;
            y = 6;

            Console.WriteLine("x = " + x);

            MyInt X = new MyInt();
            MyInt Y = new MyInt();

            X.num = 8;
            Y = X;
            Y.num = 6;

            Console.WriteLine("X = " + X.num);
            Console.ReadLine();
        }
    }

    class MyInt
    {
        public int num;
    }
}