boxes

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

namespace classes
{
    class Item
    {
        public string Name { get; set; }
        public decimal PriceItem { get; set; }

    }

    class Box
    {
        //Serial Number, Item, Item Quantity and Price for a Box.

        public string SerialNumber { get; set; }
        public Item Item { get; set; }
        public int Quantity { get; set; }
        public decimal Price { get; set; }
        public Box()
        {
            Item  = new Item();

        }

    }
    class Program
    {
        static void Main(string[] args)
        {
            //{Serial Number} {Item Name} {Item Quantity} {itemPrice}

            string[] input = Console.ReadLine().Split().ToArray();

            List<Box> list = new List<Box>();

            while (input[0] != "end")
            {
                string serial = input[0];
                string name = input[1];
                int quantity = int.Parse(input[2]);
                decimal price = decimal.Parse(input[3]);

                Box box = new Box();
                box.Item = new Item();

                box.SerialNumber = serial;
                box.Quantity = quantity;
                box.Price = price * quantity;
                box.Item.Name = name;
                box.Item.PriceItem = price;

                list.Add(box);

                input = Console.ReadLine().Split().ToArray();
            }

            foreach (var box in list.OrderByDescending(x => x.Price))
            {
                Console.WriteLine(box.SerialNumber);
                Console.WriteLine($"-- {box.Item.Name} – ${box.Item.PriceItem:f2}: {box.Quantity}");
                Console.WriteLine($"-- ${box.Price}");
            }
        }
    }
}