using System;

public class Program

{

    public static void Main()

    {

        //Q1

        string string1;

        string string2; 

        Console.WriteLine("Please enter your first string: ");

        string1 = Console.ReadLine();

        Console.WriteLine("Please enter your second string: ");

        string2 = Console.ReadLine();

        if (string1.ToUpper().Trim() == string2.ToUpper().Trim())

        {

            Console.WriteLine("Equal");

        }

        else

        {

            Console.WriteLine("Not Equal");

        }

        //Q2

        string q2 = "Celebrating 200 year of Indiana University";

        Console.WriteLine(q2.Insert(q2.IndexOf("year")+4, "s"));

    }

}