Melt 8 cubes of iron with a side length of 1 decimeter into a big cube, what is the surface area of the big cube in square decimeters?
把8块棱长是1分米的正方体铁块熔成一个大正方体，求这个大正方体的表面积是多少平方分米？
<gadget id="calculator">2 * 2 * 6</gadget>
<output>24</output>

<result>24</result>