Simple Blackjack 21

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The chip has the same 1, 10, 100, 1000 coins as the real casino.
Start the game by selecting the coin to bet.

Blackjack is the winner of the total of dealt cards distributed closer to 21.
If the hand exceeds 21, it will lose unconditionally.

First two cards will be dealt.
If "STAND" is chosen, it will start with a possession card.
You can add a card by selecting "HIT" with dealt cards smaller than 21.

Numbers 2 to 10 remain as card numbers, but J (11) to K (13) are counted as 10.
A is counted as either 1 or 11.