Get regex matched strings (Regex Capture) C#

Program that uses Match [C#]

using System;
using System.Text.RegularExpressions;

class Program
{
    static void Main()
    {
 // A
 // The input string we are using
 string input = "OneTwoThree";

 // B
 // The regular expression we use to match
 Regex r1 = new Regex(@"One([A-Za-z0-9\-]+)Three");

 // C
 // Match the input and write results
 Match match = r1.Match(input);
 if (match.Success)
 {
     string v = match.Groups[1].Value;
     Console.WriteLine("Between One and Three: {0}",
  v);
 }
    }
}

Output Between One and Three: Two