using System;

public class Program

{

    public static void Main()

    {

            string cigaretteDiameter;

            string cigaretteDimension1;

            string cigaretteDimention2;

            string answer;

            int inputDiameter;

            int inputDimension1;

            int inputDimension2;

            int totalDimension1;

            int totalDimension2;

            int totalCigarettes;

​

            do

​

            {

                Console.Clear();

                Console.WriteLine("Cigarette Packing.");

                Console.Write("Enter the diameter of cigarrete: ");

                cigaretteDiameter = Console.ReadLine();

​

                if (Int32.TryParse(cigaretteDiameter, out inputDiameter) == true)

                {

                    if (inputDiameter <= 0)

                    {

                        Console.WriteLine("Invalid diameter.");

                    }

                    else

                    {

                        Console.Write("Enter dimension value one: ");

                        cigaretteDimension1 = Console.ReadLine();

                        if (Int32.TryParse(cigaretteDimension1, out inputDimension1) == true)

​

                            if (inputDimension1 < 1)

                            {

                                Console.WriteLine("Invalid dimension one.");

                            }

​

                        if (inputDimension1 > 1)

                        {

                            totalDimension1 = inputDimension1 / inputDiameter;

​

                            Console.Write("Enter dimension value two: ");

                            cigaretteDimention2 = Console.ReadLine();

                            if (Int32.TryParse(cigaretteDimention2, out inputDimension2) == true)

                            {

                                if (inputDimension2 <= 1)

                                {

                                    Console.WriteLine("Invalid dimension two.");

                                }

                                if (inputDimension2 > 1)

                                {

                                    totalDimension2 = inputDimension2 / inputDiameter;

​

                                    Console.Write("");

​

                                    totalCigarettes = totalDimension1 * totalDimension2;

​

                                    Console.WriteLine("Maximum number of cigarettes to be packed:  {0:#,0}", totalCigarettes);

​

                                }

                            }

                            else

                            {

                                Console.WriteLine("Invalid dimension two.");

                            }

                        }

                        else

                        {

                            Console.WriteLine("Invalid dimension one.");

                        }                           

                    }

                }

                else

                {

                   Console.WriteLine("Invalid diameter.");

                }

                Console.Write("Do you want to try again? [Y/y]: ");

                answer = Console.ReadLine();

            } while ((answer == "Y") || (answer == "y"));

            Console.WriteLine("End of the program. Press any key to exit...");

        }

    }

​

​