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

namespace SoloLearn
{
	class Program
	{
		static void Main(string[] args)
		{
			// number of games
			int playCount = 100;

			Game game = new Game();
			int wins = 0;
			for (int i = 0; i < playCount; i++)
			{
				if (game.playGame())
				{
					wins++;
				}
			}
			Console.Write("You got " + wins + " blackjacks");
		}
	}
	public class Game
	{
		Deck deck;
		int result;
		List<Card> hand;
		int acesInHand;

		public bool playGame() {
			bool isBlackJack = false;
			acesInHand = 0;
			deck = new Deck();
			deck.shuffle();
			result = 0;
			int cardNumber = 0;
			hand = new List<Card>();

			while (result < 21) {
				if (deck.getCards().ElementAt(cardNumber).getSecondCount() > 0) {
					acesInHand++;
				}
				hand.Add(deck.getCards().ElementAt(cardNumber));
				result = calculateResult(hand);
				cardNumber++;
			}
			if (result == 21) {
				isBlackJack = true;
			}
			return isBlackJack;
		}

		public int calculateResult(List<Card> cards) {
			int sum = 0;
			for (int j = acesInHand; j >= 0; j--) {
				sum = 0;
				for (int i = 0; i < cards.Count; i++) {
					int smallAcecInHand = acesInHand;
					if (cards.ElementAt(i).getSecondCount() > 0 && smallAcecInHand > 0) {
						sum = sum + cards.ElementAt(i).getSecondCount();
						smallAcecInHand--;
					}
					else
					{
						sum = sum + cards.ElementAt(i).getCount();
					}
				}
				if (sum == 21) {
					return sum;
				}
			}
			return sum;
		}
	}

	public class Card
	{
		int secondCount = -1;
		int count;
		string name;
		int[] counts = {11, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 10, 10, 11};
		string[] names = {"Ace", "2", "3", "4", "5", "6", "7", "8", "9", "10", "Jack", "Queen", "King"};

		public Card(int num) {
			this.name = names[num];
			this.count = counts[num];
		}
		public Card(int num1, int num2) {
			this.name = names[num1];
			this.count = counts[num1];
			this.secondCount = counts[num2];
		}
		public string getName() {
			return name;
		}
		public int getCount() {
			return count;
		}
		public int getSecondCount() {
			return secondCount;
		}
	}

	public class Deck
	{
		List<Card> cards;
		static Random rnd = new Random();

		public Deck() {
			cards = new List<Card>();
			for (short a = 0; a <= 3; a++) {
				for (short b = 0; b <= 12; b++) {
					if (b == 0) {
						cards.Add(new Card(b, 13));
					} else {
						cards.Add(new Card(b));
					}
				}
			}
		}
		public void shuffle() {
			int n = cards.Count;
			while (n > 1)
			{
				n--;
				int k = rnd.Next(n + 1);
				Card value = cards[k];
				cards[k] = cards[n];
				cards[n] = value;
			}
		}
		public List<Card> getCards() {
			return cards;
		}
		public Card getCard(int i) {
			return cards.ElementAt(i);
		}
	}
}