There are 4 small beads of red, yellow, and blue colors in each pocket. In order to ensure that you can get 3 beads of different colors at a time, how many beads should you take at least at a time?
有红、黄、蓝三种颜色的小珠子各4颗放在口袋里，为了保证一次能取到3颗颜色不同的珠子，一次至少取多少颗？
<gadget id="calculator">4 + 4 + 1</gadget>
<output>9</output>

<result>9</result>