In a deck of poker cards (54 cards including big and small kings), at least how many cards must be taken out, and there are 4 suits in the cards taken out.
在一副扑克牌(54张含大小王)中，最少要拿出多少张，保证拿出的牌中4种花色都有．
<gadget id="calculator">13 * 3</gadget>
<output>39</output>

<gadget id="calculator">39 + 2 + 1</gadget>
<output>42</output>

<result>42</result>