There are 8 black, white, and yellow chopsticks each. Put these chopsticks into an opaque bag. If you want to take out a pair of chopsticks with the same color from these chopsticks, how many chopsticks must you take out at least to meet the requirements?
黑色、白色、黄色的筷子各有8根，将这些筷子放进一个不透明的袋子里，要想从这些筷子中取出颜色相同的一双筷子，至少要取出多少根才能保证达到要求？
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<result>4</result>