Use a pan to pancake, only 2 cakes can be placed at the same time at a time. It takes 4 minutes to cook one cake (2 minutes for each standing side and the other side), so how many minutes is the minimum time for cooking 3 cakes.
用一只平底锅烙饼，每次只能同时放2张饼．烙熟一张饼要用4分钟(立反面各烙2分钟)，则烙熟3张饼至少要多少分钟．
<gadget id="calculator">2 + 2 + 2</gadget>
<output>6</output>

<result>6</result>