4.Orders AssociativeArrays

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

namespace _4.Orders
{
    class Program
    {
        static void Main(string[] args)
        {
            var dict = new Dictionary<string, List<double>>();

            while (true)
            {
                var arrayCommand = Console.ReadLine()
                    .Split()
                    .ToList();
                if (arrayCommand[0] == "buy")
                {
                    break;
                }

                string command = arrayCommand[0];
                double priceValue = double.Parse(arrayCommand[1]);
                double quantityValue = double.Parse(arrayCommand[2]);

                if (!dict.ContainsKey(command))
                {

                    dict.Add(command, new List<double>());
                }


                dict[command].Add(priceValue);
              // here's the issue  dict[command].Insert(1, quantityValue);
                // how to add the sum at index 1 of the list(values) ? The calculation above is incorrect;
                //listProduct[product][1] += quantity;= that does not work
                // with lists , only with [](array)

            }
            foreach (var item in dict)
            {
                Console.WriteLine($"{item.Key} -> {(item.Value[0] * item.Value[1]):f2}");
            }
        }
    }
}