A pan can only fry 2 fish at a time, and each fish must be fried on both sides, and each side needs to be fried for 2 minutes. How many minutes does it take to fry 5 fish?
一只平底锅一次只能煎2条鱼，每条鱼两面都要煎，每面要煎2分钟．煎5条鱼至少需要多少分钟．
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<gadget id="calculator">4 + 6</gadget>
<output>10</output>

<result>10</result>