using System;

public class Program

{

    public static void Main()

    {

        MyType<string> ss = new MyType<string>();

        ss = new MyType<string>();

        ss = new MyType<string>();

        MyType<object> oo = new MyType<object>();

        oo = new MyType<object>();

        oo = new MyType<object>();

​

        Console.WriteLine(MyType<string>.Counter);

    }

}

​

​

public class MyType<T> where T : class

{

    public static int Counter;

    static MyType()

    {

        Counter = 0;

    }

    public MyType()

    {

        Counter++;

    }

}