using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Welcome to face mask shopping");

        Console.WriteLine("//////////////////////////////");

        Console.WriteLine("How many box you want to purchase");

        Console.WriteLine("1: 0-20 box");

        Console.WriteLine("2: 21-50 box");

        Console.WriteLine("3: 51-100 box");

        Console.WriteLine("4: 101-200 box");

        Console.WriteLine("5: 201-500 box");

        Console.WriteLine("\nso ?");

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

        if (choiceInput == 1)

        {

            Console.Write("\n1: Rm40 per box + 10% surcharge on total + Rm10 for shipping price");

        }

        else if (choiceInput == 2)

        {

            Console.Write("\n2: Rm40 per box + 5% surcharge on total + Rm10 for shipping price");

        }

        else if (choiceInput == 3)

        {

            Console.Write("\n3: Rm40 per box + Rm10 for shipping price");

        }

        else if (choiceInput == 4 )

        {

            Console.Write("\n4: Rm40 per box + 5% discount +  free shipping ");

        }

        else if (choiceInput == 5)

        {

            Console.Write("\n5: Rm40 per box + 10% discount + free shipping ");

        }

        Console.WriteLine("\nyour answer ?");

        Console.WriteLine("\n1 : yes");

        Console.WriteLine("2 : No");

        double section2 =Convert.ToDouble(Console.ReadLine());

​

        if (section2 == 1)

        {

            Console.WriteLine("\n1: let's to the next step");

            Console.WriteLine("\ni want to know your location");

            Console.WriteLine("\n1: East Malaysia");

            Console.WriteLine("2: West Malaysia");

            double location =Convert.ToDouble(Console.ReadLine());

            if (location == 1)

            {

                Console.Write("\n1 : 2% additional surcharge");

            }

            else if (location == 2)

            {

                Console.Write("\n2 : No additional surcharge");

            }

            Console.WriteLine("total purchase");

        }

        else if (section2 == 2)

        {

            Console.WriteLine("\n2: thank you");

        }

    }

 }

​

​

​