using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Welcome to The Bedroom Company. How many desks ($50) would you like to buy?");

        byte desk2 = byte.Parse(Console.ReadLine());

        int desk = desk2*50;

        Console.Clear();

        Console.WriteLine("How many trash bins ($20) would you like to buy?");

        byte bin2 = byte.Parse(Console.ReadLine());

        int bin = bin2*20;

        Console.Clear();

        Console.WriteLine("How many pencil packs ($4) would you like to buy?");

        byte pencil2 = byte.Parse(Console.ReadLine());

        int pencil = pencil2*4;

        Console.Clear();

        Console.WriteLine("How many desk mats ($15) would you like to buy?");       

//If they spend $0 (or less?) - The program should tell them that they need to spend money and set shipping to 0.  

//If they spend between 0 and $50, then shipping will be $7.99.

//If they spend between 50 and 100, then shipping will be $9.99. 

//If they spend more than 100, then shipping will be free.  

        byte mat2 = byte.Parse(Console.ReadLine());

        int mat = mat2*15;

        int sub = desk+bin+pencil+mat;

        Console.Clear();

        if (sub > 100)

        {double ship = 0;

        Console.WriteLine("Your shipping cost is " +ship);

        double tax = (ship+sub)*8.625;

        double grand = ship+sub+tax;

        Console.WriteLine("Your sub total is " +sub);

        Console.WriteLine("Your grand total is " +grand);}

        else if (sub > 50 && sub <=100)

        {double ship = 9.99;}

        else if (sub > 0 && sub <=50)

        {double ship = 7.99;}

        else if (sub <= 0)

        {Console.WriteLine("You need to spend more money");

        double ship = 0;

         Console.WriteLine("Your shipping cost is " +ship);

        double tax = (ship+sub)*8.625;

        double grand = ship+sub+tax;

        Console.WriteLine("Your sub total is " +sub);

        Console.WriteLine("Your grand total is " +grand);

        }

        Console.WriteLine("Your shipping cost is " +ship);

        double tax = (ship+sub)*8.625;

        double grand = ship+sub+tax;

        Console.WriteLine("Your sub total is " +sub);

        Console.WriteLine("Your shipping cost is " +sub);

        Console.WriteLine("Your grand total is " +grand);

    }

}