How many smaller cubes with sides 1 cm are contained in a cube with sides 3 cm long?
棱长3厘米的正方体里面包含多少个棱长1厘米的小正方体．
<gadget id="calculator">3 * 3 * 3</gadget>
<output>27</output>

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

<gadget id="calculator">27 / 1</gadget>
<output>27</output>

<result>27</result>