using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello welcome to Gurjap's Gaming Emporium");

        Console.WriteLine("How many headsets would you like to buy?");

        int headset = int.Parse(Console.ReadLine());

        decimal cost1 = 59.99M * headset;

        Console.WriteLine("How many mouses would you like to buy?");

        int mouse = int.Parse(Console.ReadLine());

        decimal cost2 = 49.99M * mouse;

        Console.WriteLine("How many controllers would you like to buy?");

        int controller = int.Parse(Console.ReadLine());

        decimal cost3 = 59.99M * controller;

        Console.WriteLine("How many keyboards would you like to buy?");

        int keyboard = int.Parse(Console.ReadLine());

        decimal cost4 = 49.99M * keyboard;

        decimal subtotal = cost1 + cost2 + cost3 + cost4;

        Console.Clear();

        decimal tax = subtotal * 0.08625M;

        decimal subtotal1 = subtotal + tax;

        Console.WriteLine("Your subtotal will be " +subtotal+ " and your grand total will be " +subtotal1);

        if(subtotal1<=0);

        { Console.WriteLine("Shipping costs $0.");

        }

        if(subtotal1>=0 && subtotal1<=50);

        { Console.WriteLine("Shipping costs $7.99.");

        }

        if(subtotal1>=50 && subtotal1<=100);

        { Console.WriteLine("Shipping costs $9.99.");

        }

        if(subtotal1>=100);

        { Console.WriteLine("Shipping is free!.");

        }

    }

}