using System;

public class Program

{

    public static void Main()

    {

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

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

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

        Console.WriteLine("The third element of the array is " +FPi[2]); 

        //Print the length of an array.

        Console.WriteLine("The length of the array is " +FPi.Length); 

        //Print the upper bound of an array.

        Console.WriteLine("The upper bound of the array is " +FPi.GetUpperBound(0)); 

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

        Array.Sort(FPi);

        Console.WriteLine("The sorted third element of the array is " +FPi[2]); 

        //2. Create a string Array that holds the names of the 12 months.

        string[] Months = new string[12]; 

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

        Months [0] = "Jan"; 

        Months [1] = "Feb"; 

        Months [2] = "Mar"; 

        Months [3] = "Apr"; 

        Months [4] = "May";

        Months [5] = "Jun"; 

        Months [6] = "Jul"; 

        Months [7] = "Aug"; 

        Months [8] = "Sept"; 

        Months [9] = "Oct"; 

        Months [10] = "Nov"; 

        Months [11] = "Dec"; 

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

        Console.WriteLine("Please enter a number between 1 and 12");

        string Number = Console.ReadLine(); 

        //Print out the corresponding month. (If a user types 2, you should show "Feb".) (Hint: the index starts from 0)

        int iMonth = int.Parse(Number); 

        Console.WriteLine("The corresponding month is " +Months [iMonth -1]); 

    }

}