using System;

public class Program

{

    public static void Main()

    {

        /*

        //#1

        Console.WriteLine("Are you happy?");

        string strReply = Console.ReadLine();

        strReply = strReply.Replace("No","Yes");

        Console.WriteLine(strReply);

        */

        /*

        //#2

        string strNumber = "801-123-4567";

        char[] separator = {'-'};

        string[] numParse;

        numParse = strNumber.Split(separator);

        Console.WriteLine(numParse[0]);

        Console.WriteLine(numParse[1]);

        Console.WriteLine(numParse[2]);

        */

        //#3

    }

}