Problem 8. * Upgraded Matcher

using System;
using System.Linq;

namespace ConsoleApp5
{
    class Program
    {
        static void Main(string[] args)
        {

            string[] products = Console.ReadLine().Split(' ').ToArray();
            ulong[] availability = Console.ReadLine().Split(' ').Select(ulong.Parse).ToArray();
            decimal[] prices = Console.ReadLine().Split(' ').Select(decimal.Parse).ToArray();

            int index = 0;

            while (true)
            {
                string[] product = Console.ReadLine().Split(' ').ToArray();

                if (product[0] == "done")
                {
                    break;
                }

                index = Array.IndexOf(products, product[0]);

                try
                {
                    if (ulong.Parse(product[1]) <= availability[index])
                    {
                        Console.WriteLine($"{product[0]} x {product[1]} costs {ulong.Parse(product[1]) * prices[index]}");
                        availability[index] -= ulong.Parse(product[1]);

                    }
                    else
                    {
                        Console.WriteLine($"We do not have enough {product[0]}");
                    }
                }
                catch (Exception)
                {
                    Console.WriteLine($"We do not have enough {product[0]}");
                }
            }
        }
    }
}