There are 54 cards in a deck of poker (including King and King), and at least how many cards are drawn from it to ensure that there must be 3 suits.
一付扑克牌共有54张(包括大王、小王)，至少从中取多少张牌，才能保证其中必有3种花色．
<gadget id="calculator">2 * 13</gadget>
<output>26</output>

<gadget id="calculator">26 + 2 + 1</gadget>
<output>29</output>

<result>29</result>