Each time you bake two cakes, both sides need to be baked, each side takes 2 minutes, and you need to bake 3 cakes, how many minutes do you need at least?
每次烙两张饼，两面都要烙，每面2分钟，要烙3张饼，最少用多少分钟
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<result>6</result>