Source code in the csharp programming language

using System;
using System.Text;

namespace prog
{
	class MainClass
	{		
		public static void Main (string[] args)
		{
			StringBuilder s = new StringBuilder();
			Random rnd = new Random();
			
			s.AppendLine("<table>");
			s.AppendLine("<thead align = \"right\">");
			s.Append("<tr><th></th>");
			for(int i=0; i<3; i++)
				s.Append("<td>" + "XYZ"[i] + "</td>");
			s.AppendLine("</tr>");
			s.AppendLine("</thead>");
			s.AppendLine("<tbody align = \"right\">");
			for( int i=0; i<3; i++ )
			{
				s.Append("<tr><td>"+i+"</td>");
				for( int j=0; j<3; j++ )
					s.Append("<td>"+rnd.Next(10000)+"</td>");				
				s.AppendLine("</tr>");
			}
			s.AppendLine("</tbody>");
			s.AppendLine("</table>");
			
			Console.WriteLine( s );
		}
	}
}


using System;
using System.Text;
using System.Xml;

namespace N
{
	public class T
	{
		public static void Main()
		{
			var headers = new [] { "", "X", "Y", "Z" };
			
			var cols = headers.Select(name =>
				new XElement(
					"th",
					name,
					new XAttribute("text-align", "center")
				)
			);
		
			var rows = Enumerable.Range(0, 4).Select(ri =>
				new XElement(
					"tr",
					new XElement("td", ri),
					Enumerable.Range(0, 4).Select(ci =>
						new XElement(
							"td",
							ci,
							new XAttribute("text-align", "center")
						)
					)
				)
			);
				
			var xml = new XElement(
				"table", 
				new XElement(
					"thead", 
					new XElement("tr",    cols),
					new XElement("tbody", rows)
				)
			);
			
			Console.WriteLine(xml.ToString());
		}
	}
}