How many small cubes with an edge length of 1 decimeter are stacked to form a larger cube at least.
用棱长为1分米的小正方体堆放成大一些的正方体，至少要用多少个这样的小正方体．
<gadget id="calculator">2 / 1</gadget>
<output>2</output>

<gadget id="calculator">2 * 2 * 2 * 1 * 1</gadget>
<output>8</output>

<result>8</result>