using System;
using System.Text.RegularExpressions;

public class Test
{
	public static void Main()
	{
		var text = @"
    <live key>test</live key>
    <not live>test</not live>
    <Test>hello</Test>  
		";
		Regex rx = new Regex("<([^>\n]*)>(.*?)</(\\1)>");
		var m = rx.Match(text);
		while (m.Success) {
			Console.WriteLine("{0}='{1}'", m.Groups[1], m.Groups[2]);
			m = m.NextMatch();
		}
	}
}