using System;
using System.IO;
using System.Text;
using System.Linq;
using System.Xml.Linq;
using System.Xml;
using System.Collections;
using System.Collections.Generic;
public class MainClass
{
public static void Main()
{
StringBuilder sb = new StringBuilder();
XDocument doc = new XDocument(
new XElement("Root",
new XElement("Child", "content")
)
);
TextWriter tr = new StringWriter(sb);
doc.Save(tr);
Console.WriteLine(sb.ToString());
}
}