There are 4 decks of playing cards of the same brand in the box. If you want to draw 3 identical cards, how many cards should you draw from the box?
盒子中装有4副相同品牌的扑克牌，如果要保证摸出3张完全相同的牌，一共要从盒子中摸出多少张牌．
<gadget id="calculator">54 * 2</gadget>
<output>108</output>

<gadget id="calculator">108 + 1</gadget>
<output>109</output>

<result>109</result>