using System;

using System.Reflection;

using System.Globalization;

public class Program

{

    class BaseClass 

    {

        public static string Member;

    }

    class BaseClass<T> : BaseClass

    {

​

    }

    class DerivedClass1 : BaseClass<int>

    {

    }

    class DerivedClass2 : BaseClass<double>

    {

    }

    class DerivedClass3 : BaseClass<int>

    {

    }

    public void Main()

    {

        DerivedClass1.Member = "test";

        Console.WriteLine(DerivedClass1.Member);

        Console.WriteLine(DerivedClass2.Member);

        Console.WriteLine(DerivedClass3.Member);

​

    }

}