Upgraded Matcher

using System;
using System.Linq;
class Program
{
    static void Main()
    {
        string[] products = Console.ReadLine().Split(' ');
        long[] quantityInput = Console.ReadLine().Split(' ').Select(long.Parse).ToArray();
        decimal[] prices = Console.ReadLine().Split(' ').Select(decimal.Parse).ToArray();

        long[] quantity = new long[products.Length];
        for (int i = 0; i < quantityInput.Length; i++)
        {
            quantity[i] = quantityInput[i];
        }
        while (true)
        {
            string[] element = Console.ReadLine().Split(' ');
            if (element[0] == "done")
            {
                break;
            }
            long neededQuantity = long.Parse(element[1]);
            int indexElement = Array.IndexOf(products, element[0]);
            if (neededQuantity <= quantity[indexElement])
            {
                decimal totalPrice = neededQuantity * prices[indexElement];
                Console.WriteLine($"{products[indexElement]} x {neededQuantity} costs {Math.Round(totalPrice, 2)}");
                quantity[indexElement] = quantity[indexElement] - neededQuantity;
            }
            else
            {
                Console.WriteLine($"We do not have enough {products[indexElement]}");
            }
        }
    }
}