using System;
using System.Text.RegularExpressions;
namespace P10_11
{
    class Program
    {
       static void Main(string[] args)
        {
            string input = "This is   text with   far  too   much   " +
                     "whitespace.";
            string pattern = "\\s+";
            string replacement = " ";
            Regex rgx = new Regex(pattern);
            string result = rgx.Replace(input, replacement);
            Console.WriteLine("ԭʼַǣ{0}", input);
            Console.WriteLine("滻ַǣ {0}", result);                             
            Console.ReadLine();
        }
    }
}
