using System;

public class Program

{

    public static void Main()

    {

        //Q1

        Console.WriteLine("Enter your 1st string: ");

        string str1 = Console.ReadLine(); 

        Console.WriteLine("Enter your 2nd string: "); 

        string str2 = Console.ReadLine(); 

        //ignore spaces, casing, and ending spaces

        str1 = str1.Trim().ToLower();

        str2 = str2.Trim().ToLower(); 

        //show the comparison (equal/not equal)

        if (str1.Equals(str2))

        {

            Console.WriteLine("Equal");

        }

        else

        {

            Console.WriteLine("Not Equal");

        }

        Console.WriteLine();

        //Q2

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

        strIU = strIU.Insert(strIU.IndexOf("year")+"year".Length,"s");

        Console.WriteLine(strIU);

​

    }

}