using System;

namespace Operators
{
    class Values
    {
        static void Main(string[] args)
        {
            try
            {
                int valueOne;
                int valueTwo;
                // A const variable to hold the value that each number will be 
                // multiplied by
                const int multiplyer = 12;

                Console.WriteLine(
                    "Please enter a number between 1 and 12");
                valueOne = int.Parse(Console.ReadLine());

                // Use && operator to determine whether the number entered 
                // by the user is between 1 and 12
                if (valueOne > 0 && valueOne < 13)
                {
                    valueTwo = valueOne * multiplyer;
                    Console.WriteLine(
                        valueOne + " x " + multiplyer + " = " + valueTwo);
                }
                else
                {
                    Console.WriteLine(
                        "You didn't enter a number between 1 and 12");
                }
            }
            // Handle the exception generated by wrongly formatted user input
            catch (System.FormatException)
            {
                Console.WriteLine(
                    "You didn't enter a Whole Number!");
            }
            Console.WriteLine(
                  '\n' + "Please Press any Key to Exit");
           System.Console.ReadKey();
        }
    }
}