There are 54 cards in a deck, and there are 2 kings among them, then at least how many cards are drawn from it to ensure that there are 5 cards of the same suit for any drawing method.
一副扑克牌共54张，其中有2张大王，则至少从中抽出多少张牌才能保证对于任意的抽法有5张牌花色相同．
<gadget id="calculator">3 * 4</gadget>
<output>12</output>

<gadget id="calculator">2 + 4 + 12 + 1</gadget>
<output>19</output>

<result>19</result>