using System; 

using System.Text.RegularExpressions; 

class Program 

{ 

    static void Main() 

    { 

        Regex regex = new Regex(@"\d+");

        Match match = regex.Match("Dot 55 Perls");

        if (match.Success) 

        {

            Console.WriteLine("MATCH VALUE: " + match.Value);

        } 

    } 

}               

​

​

​