using System;

public class Program

{

    public static void Main()

    {

        //Q1: Create an int Array with the first few digits of the number 𝜋: 3,1,4,1,5,9

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

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

        Console.WriteLine("pi[{0}] = {1}", 2, pi[2]);

        //Print the length of an array.

        Console.WriteLine("pi.Length = {0}", pi.Length);

        //Print the upper bound of an array.

        Console.WriteLine("pi.GetUpperBound(0) = {0}", pi.GetUpperBound(0));

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

        Array.Sort(pi);

        Console.WriteLine("pi[{0}] = {1}",2, pi[2]);

        //Q2: 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").

        string[] month = new string[] {"Jan", "Feb", "March", "April", "May", "June", "July", "Aug", "Sept", "Oct", "Nov", "Dec"};

        //Ask the user to type a number in the range from 1 to 12.

        Console.WriteLine("Month 1 to 12?: ");

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

        //Print out the corresponding month. (If a user types 2, you should show "Feb".)

        Console.WriteLine(month[i-1]);

        //(Hint: the index starts from 0)

​

    }

}