Twenty-one

Two cards are dealt and you can request a card one at a time.
The value of the cards in hand must add up to reach or reach 21 points, but cannot be exceeded, except for two aces, which is the best in this game. You have to reach 17 for the value of your cards, but 22 is already a lot.The cards are dealt randomly, the algorithm does not tell the player's cards to the machine.
The value of the tabs is as follows:
ace: 11 points
king: 4 points
upper: 3 points
lower: 2 points
tenths (X): 10 points
nine (IX): 9 points
eight (VIII): 8 points
seven (VII): 7 points