using System;

using System.Collections.Generic;

​

class Program

{

    static void Main()

    {

        var products = new Dictionary<string, (double Price, int Quantity)>();

        double grandTotal = 0;

​

        while (true)

        {

            string input = Console.ReadLine();

            if (input == "stocked")

            {

                break;

            }

            var parts = input.Split();

            string name = parts[0];

            double price = double.Parse(parts[1]);

            int quantity = int.Parse(parts[2]);

​

            if (products.ContainsKey(name))

            {

                var existingProduct = products[name];

                products[name] = (price, existingProduct.Quantity + quantity);

            }

            else

            {

                products[name] = (price, quantity);

            }

        }

        foreach (var product in products)

        {

            var name = product.Key;

            var price = product.Value.Price;

            var quantity = product.Value.Quantity;

            double totalPrice = price * quantity;

            grandTotal += totalPrice;

            Console.WriteLine($"{name}: ${price:F2} * {quantity} = ${totalPrice:F2}");

        }

        Console.WriteLine(new string('-', 30));

        Console.WriteLine($"Grand Total: ${grandTotal:F2}");

    }

}