using System;

public class Program

{

    public static void Main()

    {

        //1. Read two strings from the user and compare them. The comparison should ignore a) leading spaces, b) case, and c) trailing spaces. Thus, “ hello World” is equal to “hello wORLD          ”. 

        //Show “Equal” if the two strings are equal; “Not Equal” otherwise. 

        //Number of spaces between words matter.

        Console.WriteLine("Please Enter The 1st String: ");

        string strFirst = Console.ReadLine();

        Console.WriteLine("Please Enter The 2nd String: ");

        string strSecond = Console.ReadLine();

        strFirst = strFirst.Trim();

        strSecond = strSecond.Trim();

        strFirst = strFirst.ToLower();

        strSecond = strSecond.ToLower();

        if (strFirst == strSecond)

        {

            Console.WriteLine("Equal");

        }

        else

        {

            Console.WriteLine("Not Equal");

        }

        //2. Create a string “Celebrating 200 year of Indiana University”

            //Insert “s” after “year”.

            //You must use Insert and IndexOf to complete this question.

            //Print out the updated string.

        string strCeleIU = "Celebrating 200 year of Indiana University";

        int intIndex = strCeleIU.IndexOf("year");

        string strCeleIUs = strCeleIU.Insert(intIndex + 4, "s");

        Console.WriteLine("Updated string: " + strCeleIUs);

    }

}