using System;

public class Program

{

    public static void Main()

    {

        //Create an int Array with the first digits of Pi: 3,1,4,1,5,9

        //Print out the 3rd element of the array. (Hint: the index starts from 0)

        //Print the length of an array

        //Print the upper bound of an array

        //Sort this array and print out the 3rd element

        int[] intArray = new int[]{3,1,4,1,5,9};

        Console.WriteLine(intArray[2]);

        Console.WriteLine(intArray.Length);

        Console.WriteLine(intArray.GetUpperBound(0));

        Array.Sort(intArray);

        Console.WriteLine(intArray[2]);

        //Create a string Array

        //This is an array that holds the names of the 12 months.

        //Please set up the value for these 12 months ("Jan" to "Dec").

        //Ask users to type a number ranging from 1 to 12.

        //Print out the corresponding month. 

        String[] strArrMonths = new String[]{"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};

        Console.Write("Please enter a number ranging from 1 to 12: ");

        string input1 = Console.ReadLine();

        int var1 = Convert.ToInt32(input1);  

        Console.WriteLine("You selected " + var1 + " which corresponds to the month of " + strArrMonths[var1 - 1]);

    }

}