using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace WorkWithStrings

{

    class Program

    {

        static void Main(string[] args)

        {

            //string myString = "My \"So-Called\" Life"; 

            //string myString = "What if I need a \nnew Line?";

            //string myString = "Go to your c:\\ drive";

            //string myString = @"Go to your c:\ drive then d:\";

​

            //string myString = string.Format("{1} = {0}", "First", "Second");

            //string myString = string.Format("{0:C}", 123.54);

            //string myString = string.Format("{0:N}", 1234567890);

            //string myString = string.Format("Percentage: {0:P}", .251);

            //string myString = string.Format("{0:(###) ###-####}", 1234567890);

​

            //string myString = "This summer is Great!";

            //myString = myString.Substring(5,11);

            //myString = myString.ToUpper();

            //myString = myString.Replace(" ", "-");

            //myString = myString.Remove(6,11);

​

            //string myString = "";

            //for (int i = 0; i < 100; i++)

            //{

            //    myString += "--" + i.ToString();

            //}

​

            StringBuilder myString = new StringBuilder();

            for (int i = 0; i < 100; i++)

            {

                myString.Append("--");

                myString.Append(i);

            }

​

            Console.WriteLine(myString);

            Console.ReadLine();

        }

    }

}

​