DictionariesEX04Shopping - Test

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ArraysAndLists
{
    class Program
    {
        static void Main(string[] args)
        {
            Dictionary<string, int> productsInStock = new Dictionary<string, int>();
            string[] input = Console.ReadLine().Split(new char[] { ' ' },StringSplitOptions.RemoveEmptyEntries);

            while(input[0] != "shopping")
            {

                string productName = input[1];
                int quantity = int.Parse(input[2]);

                if(!productsInStock.ContainsKey(productName))
                {
                    productsInStock[productName] = 0;
                }
                productsInStock[productName]+=quantity;

                input = Console.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
            }

            input = Console.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);

            while(input[0] != "exam")
            {
                string productName = input[1];
                int quantity = int.Parse(input[2]);

                if(!productsInStock.ContainsKey(productName))
                {
                        Console.WriteLine($"{productName} doesn't exist");
                }
                else
                {
                    if (productsInStock[productName] > 0)
                    {
                        productsInStock[productName] -= quantity;
                    }
                    else if (productsInStock[productName] <= 0)
                    {
                        productsInStock[productName] = 0;
                        Console.WriteLine($"{productName} out of stock");
                    }



                }

                input = Console.ReadLine().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
            }

            foreach (KeyValuePair<string,int> item in productsInStock)
            {
                Console.WriteLine($"{item.Key} -> {item.Value}");
            }

        }

    }
}