using System;

​

// order is approximately

/*

   1) most derived initializers first.

   2) most base constructors first (or top-level in constructor-stack first.)

*/

// see also http://stackoverflow.com/questions/1882692/c-sharp-constructor-execution-order

public class Program

{

    public static void Main()

    {

        var d = new D();

    }

}

​

public class A

{

    public readonly C ac = new C("A");

​

    public A()

    {

        Console.WriteLine("A");

    }

    public A(string x) : this()

    {

        Console.WriteLine("A got " + x);

    }

}

​

public class B : A

{

    public readonly C bc = new C("B");

    public B(): base()

    {

        Console.WriteLine("B");

    }

    public B(string x): base(x)

    {

        Console.WriteLine("B got " + x);

    }

}

​

public class D : B

{

    public readonly C dc = new C("D");

    public D(): this("ha")

    {

        Console.WriteLine("D");

    }

    public D(string x) : base(x)

    {

        Console.WriteLine("D got " + x);

    }

}

​

public class C

{

    public C(string caller)

    {

        Console.WriteLine(caller + "'s C.");

    }

}