using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var deck = GetDeck();

        var hand = new List<Card>();

        hand.Add(GetCard(deck));

        hand.Add(GetCard(deck));

        Console.WriteLine($"Hand : {string.Join(", ", hand)}");

        Console.WriteLine($"Deck : {string.Join(", ", deck)}");

    }

    public static List<Card> GetDeck()

    {

        var deck = new List<Card>();

        foreach(var suit in Card.Suit.GetValues<Card.Suit>())

        {

            for(var rank = 1; rank < 14; rank++)

            {

                var card = new Card(rank, suit);

                deck.Add(card); 

            }

        }

        return deck;

    }

    public static Card GetCard(List<Card> deck)

    {

        if (deck.Count < 1)

            throw new Exception("Deck is empty!");

​

        var card = deck[0];

        deck.RemoveAt(0);

        return card;

    }

}

​

public record Card(int Rank, Card.Suit CardSuit = Card.Suit.Club)

{

    public enum Suit

    {

        Club,

        Diamond,

        Heart,

        Spade

    }

    public int Value => Math.Min(10, Rank);

    public override string ToString() => $"{RankToString(Rank)}{SuitToString(CardSuit)}";

​

    private static string RankToString(int rank)

    {

        return rank switch

        {

            1 => "A",

            11 => "J",

            12 => "Q",

            13 => "K",

            _ when rank >= 2 && rank <= 10 => rank.ToString(),

            _ => throw new ArgumentOutOfRangeException(nameof(rank), "Rank must be between 1 and 13")

        };

    }

    private static string SuitToString(Suit suit)

    {

        return suit switch

        {

            Suit.Club => "♣",

            Suit.Diamond => "♦",

            Suit.Heart => "♥",

            Suit.Spade => "♠",

            _ => throw new ArgumentOutOfRangeException(nameof(suit), "Suit must be Club, Diamond, Heart, or Spades")

        };

    }

}

​