using System;

public class Program

{

    public static void Main()

    {

        //Question 1

        Console.WriteLine("Enter string 1");

        string str1 = Console.ReadLine();

        Console.WriteLine("Enter string 2 to compare to string 1");

        string str2 = Console.ReadLine();

        if(str1.Trim().ToLower() == str2.Trim().ToLower()){

            Console.WriteLine("Equal");

        }else{

            Console.WriteLine("Not Equal");

        }

        //Question 2

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

        x = x.Insert(x.IndexOf("year")+4, "s");

        Console.WriteLine(x);

    }

}