using System;
using System.Text.RegularExpressions;

public class Test
{
	public static void Main()
	{
		var input = "Te1xt32";
		var regex = new Regex(@"^(.+)(?<Number>\d+)\z", RegexOptions.RightToLeft);

		Match m = regex.Match(input, input.Length);

		Console.WriteLine(m.Groups[1].Value);
 		Console.WriteLine(m.Groups["Number"].Value);
	}
}