using System;

public class Program

{

    public static void Main()

    {

        String choice; 

        int quan;

        Console.WriteLine("CHOICES");

        Console.WriteLine("A. LAPTOP - 40,000");

        Console.WriteLine("B. TABLET - 20,000");

        Console.Write("Enter Choice:");

        choice=Console.ReadLine();

        if ((choice == "A") || (choice == "a"))

        {

            Console.Write("Enter Quantity:");

            quan=int.Parse()

        }

    }

}