using System;
using System.IO;
using System.Xml;
public class Sample
{
public static void Main()
{
XmlDocument doc = new XmlDocument();
doc.Load("data.xml");
XmlElement elem = doc.CreateElement("misc");
elem.InnerText = "hardcover";
elem.SetAttribute("publisher", "A");
XmlNode elem2 = elem.CloneNode(true);
doc.DocumentElement.FirstChild.AppendChild(elem);
doc.DocumentElement.LastChild.AppendChild(elem2);
doc.Save(Console.Out);
}
}