using System;

using System.Text.RegularExpressions;

namespace RegExApplication

{

    public class Program

    {

        private static void showMatch(string text, string expr)

    {

        Console.WriteLine("The Expression: " + expr);

        MatchCollection mc = Regex.Matches(text, expr);

        foreach (Match m in mc)

        {

            Console.WriteLine(m);

        }

    }

    public static void Main(String[] args)

    {

        string str = "A Thousand Splendid Suns";

        Console.WriteLine("Matching Words That Starts with 's': ");

        showMatch(str, @"\bS\S*");

    }   

    }

}