How much iron sheet is needed to make an uncovered cubic sink with an edge length of 8 decimeters?
用铁皮做一个棱长是8分米的没盖正方体水槽，至少需要多少铁皮？
<gadget id="calculator">8 * 8 * 5</gadget>
<output>320</output>

<result>320</result>