There are several small balls of three different colors in the pocket (enough), and each time you touch 2 balls, you must ensure that the result of touching 5 times is the same, at least how many times you need to touch.
口袋里有三种不同颜色的小球若干个(足够多)，每次摸2个，要保证有5次所摸的结果是一样的，至少要摸多少次．
<gadget id="calculator">4 * 6</gadget>
<output>24</output>

<gadget id="calculator">24 + 1</gadget>
<output>25</output>

<result>25</result>