cube fuel tank has a side length of 14 decimeters. If 20 such fuel tanks are manufactured, how many square decimeters of iron sheet are needed at least?
一个正方体油箱棱长14分米，如果制造20个这样的油箱，至少要铁皮多少平方分米？
<gadget id="calculator">14 * 14 * 6 * 20</gadget>
<output>23_520</output>

<result>23_520</result>