using System;

public class Program

{

    public static void Main()

    {

        //1

        //string[] blab = new string[5];

        //blab[5] = 5th string;

        // The code will not complie because it is trying to convert an integer into a string, which will not work.

​

        //2

        Console.WriteLine("Enter a string");

        string NewString = Console.ReadLine();

        NewString = NewString.Replace("no","yes");

        Console.WriteLine("transform text: " + NewString);

        //3

        Console.WriteLine("Enter A String");

        string firstString = Console.ReadLine();

        Console.WriteLine("Enter Another String");

        string secondString = Console.ReadLine();

        string LCfirstString = firstString.ToLower();

        string LCsecondString = secondString.ToLower();

        string NSLCfirstString = LCfirstString.Trim();

        string NSLCsecondString = LCsecondString.Trim();

        if(NSLCfirstString == NSLCsecondString)

        {

            Console.WriteLine("The Strings Are Equal");

        }

        else 

        {

            Console.WriteLine("The String Are Not Equal");

        }

    }

}