using System;

public class Test
{
	public static void Main()
	{
		IText h2 = new HtmlTextBox2{Text="Hello world"};
		Console.WriteLine(h2.Text);
	}
}

public class HtmlTextBox
{
	public string Text {get; set;}
}

public class HtmlDiv
{
	public string Text {get; set;}
}

public interface IText 
{
	string Text {get; }	
}

public class HtmlTextBox2 : HtmlTextBox, IText {}
public class HtmlDiv2 : HtmlDiv, IText {}