04. Orders

using System;
using System.Collections.Generic;
using System.Linq;


namespace _04._Orders
{
class Product
    {
        public int Quantity { get; set; }
        public string Name { get; set; }
        public double Price { get; set; }

        public Product(int quantity, double price)
        {
            Quantity = quantity;
            Price = price;
        }


    }
    class Program
    {
        static void Main(string[] args)
        {
            Dictionary<string, Product> dict = new Dictionary<string, Product>();

            string comand = Console.ReadLine();


            while (comand != "buy")
            {
                string[] input = comand.Split();

                string name = input[0];
                double price = double.Parse(input[1]);
                int quantity = int.Parse(input[2]);

                if (!dict.ContainsKey(name))
                {
                    dict[name] = new Product(quantity, price);
                }
                else
                {
                    dict[name].Quantity += quantity;
                    dict[name].Price = price;
                }
                comand = Console.ReadLine();
            }



            foreach (var item in dict)
            {
                Console.WriteLine($"{item.Key} -> {(item.Value.Price * item.Value.Quantity):f2}");
            }


        }
    }
}