There are 8 black, white, and yellow chopsticks mixed together. If you want to take out a pair of chopsticks of the same color in the dark, you must take out at least how many chopsticks to meet the requirements.
有黑色、白色、黄色的筷子个8根，混杂在一起，黑暗中想取出同样颜色的一双筷子，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>