using System;

public class Program

{

    public static void Main()

    {

        Deck theDeck = new Deck(new int[] {1,2,3,4,5,6,7,8,9,10,

                                          1,2,3,4,5,6,7,8,9,10,

                                          1,2,3,4,5,6,7,8,9,10,

                                          1,2,3,4,5,6,7,8,9,10});

        int[] hand = {0,0,0,0,0,0,0,0,0,0};

        int handTotal = 0;

        int currentCard = 0;

        while (handTotal < 17){

            hand[currentCard] = theDeck.drawCard();

            Console.WriteLine("Current card: " + hand[currentCard]);

            foreach (int card in hand){

                handTotal += card;

            }

            Console.WriteLine("Hand Total: " + handTotal);

        }

        if (handTotal > 21)

        {

            Console.WriteLine("You win.");

        }

        else

        {

            Console.WriteLine("You Lose.");

        }

        Console.WriteLine("Remaining Cards: " + theDeck.remainingCards());

    }

    public class Deck

    {

        public int[] cards { get; set; }

        public Deck()

        {

        }

        public Deck(int[] myCards)

        {

            cards = myCards;

        }

        //Method to draw a random card from the deck. It replaces said card with a 0 and returns the card selected.

        public int drawCard()

        {

            var rand = new Random();

            bool isValid = false;

            int selector;

            int card = 0;

            while (isValid == false)

            {

                selector = rand.Next(40);

                card = cards[selector];

                if (card != 0)

                {

                    cards[selector] = 0;

                    isValid = true;

                    return card;

                }

            }

            return card;

        }

        public int remainingCards()

        {

            int total = 0;

            foreach (int card in cards)

            {

                if (card != 0){

                    total++;

                }

            }

            return total;

        }

    }

}