ExcursionSale/Switch-case

using System;

namespace ConsoleApp43
{
    class Program
    {
        static void Main(string[] args)
        {
            int seaPacketNum = int.Parse(Console.ReadLine());
            int mountainPacketNum = int.Parse(Console.ReadLine());
            string destination = Console.ReadLine();
            int profit = 0;
            int seaPrice = 680;
            int mountainPrice = 499;
            string choice = " ";
            while (destination != "Stop")
            {
                choice = destination;
                switch (destination)
                {
                    case "sea":
                        if (seaPacketNum > 0)
                        {
                            seaPacketNum--;
                            profit += seaPrice;

                        }
                        break;
                    case "mountain":
                        if (mountainPacketNum > 0)
                        {

                            mountainPacketNum--;
                            profit += mountainPrice;
                        }
                        break;
                }

                if (seaPacketNum == 0 && mountainPacketNum == 0)
                {
                    break;
                }

                destination = Console.ReadLine();
            }
            if (seaPacketNum == 0 && mountainPacketNum == 0)
            {
                Console.WriteLine("Good job! Everything is sold.");
            }

            Console.WriteLine($"Profit: {profit} leva.");

        }
    }
}