Three cubes with side lengths of 3 cm are put together to form a cuboid, what is the volume of the cuboid
把三个棱长是3cm的正方体拼成一个长方体，长方体的体积是多少
<gadget id="calculator">3 * 3 * 3 * 3</gadget>
<output>81</output>

<result>81</result>