Red Wolf uses her pan to bake 4 cakes at a time, each side takes 2 minutes, and both sides are baked, how many minutes does it take to bake 6 cakes at least.
红太狼用她的平底锅烙饼，一次能烙4张，每面需2分钟，两面都烙，烙6张饼最少需要多少分钟．
<gadget id="calculator">2 + 2 + 2</gadget>
<output>6</output>

<result>6</result>