using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace StringBuilderTest
{
    class Program
    {

        static void Main(string[] args)
        {
            string s1 = "one,two,three library,INC.";

            const char Space = ' ';
            const char Comma = ',';

            char[] delimiters = new char[]
            {
            Space,
            Comma
            };

            StringBuilder output = new StringBuilder();

            int ctr = 1;

            foreach (string subString in s1.Split(delimiters))
            {
                output.AppendFormat("{0}: {1} \n",ctr++,subString);
            }
            Console.WriteLine(output);
            Console.ReadLine();

        }

    }
}