using System;

public class Program

{

    public static void Main()

    {

        int[] piNumbers = { 3, 1, 5, 1, 6, 9 };

        Console.WriteLine("The 3rd Element of this array is: " + piNumbers[2]);

        Console.WriteLine("The lenagth of this array is: " + piNumbers.Length);

        Console.WriteLine("The upper bound of this array is: " + piNumbers.GetUpperBound(0));

        Array.Sort(piNumbers);

        Console.WriteLine("The 3rd Element of this array is: " + piNumbers[2]);

        string[] strMonths = new string[12];

        strMonths [0] = "Jan";

        strMonths [1] = "Feb";

        strMonths [2] = "Mar";

        strMonths [3] = "Apr";

        strMonths [4] = "May";

        strMonths [5] = "Jun";

        strMonths [6] = "Jul";

        strMonths [7] = "Aug";

        strMonths [8] = "Sep";

        strMonths [9] = "Oct";

        strMonths [10] = "Nov";

        strMonths [11] = "Dec";

        Console.WriteLine("Enter a month number: ");

        int userInput = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine(strMonths[userInput - 1]);

    }

}