using System;

public class Program

{

    public static void Main(string[]args)

    {

        Console.WriteLine("Bill Name : ");

        String name = Console.ReadLine();

        Console.WriteLine("You have coupon [4Pay3] : ");

        String coupon = Console.ReadLine();

        Console.WriteLine("You have Member [Y/N] : ");

        String member = Console.ReadLine();

        Console.WriteLine("============================================");

        Console.WriteLine("Menu                 Quantity                  Unity/Price ");

        Console.WriteLine("Buffer                 99.00                     4 total 3    ");

        Console.WriteLine("Water                 15.00                     10");

        Console.WriteLine("Ice                     15.00                     3");

        Console.WriteLine("============================================");

        Console.WriteLine("Amount");

        float buffer = 99.00f;

        float water = 15.00f;

        float ice = 15.00f;

        float price = 4;

        Console.WriteLine("={0:F}", buffer*price);

        Console.WriteLine("={0:F}", water*price);

        Console.WriteLine("={0:F}", ice*price);

    }

}

​