using System;

public abstract class BaseClass {
    private string m_Name;
    
    protected BaseClass(string name) {
        m_Name = name;
    }
    
    public void Output()
    {
        Console.WriteLine("The class is: " + this.GetType());
        Console.WriteLine("The name is: " + m_Name);
    }
}

public class DerivedA : BaseClass {
    public DerivedA(string name) : base(name) {}
}

public class DerivedB : BaseClass {
    public DerivedB(string name) : base(name) {}
}

public static class MyStaticClass {
    public static T Create<T>(string name)
        where T : BaseClass
    {
        return (T)Activator.CreateInstance(typeof(T), new[] { name });
    }
}

class Test {
    static void Main() {
        var a = MyStaticClass.Create<DerivedA>("derived a");
        var b = MyStaticClass.Create<DerivedB>("derived b");
        
        a.Output();
        b.Output();
    }
}