The school bought 4 boxes of ink, 80 bottles per box, 3 yuan per bottle, how much did you spend in total?
学校买来4箱墨水，每箱80瓶，每瓶3元，一共用了多少钱？
<gadget id="calculator">80 * 4 * 3</gadget>
<output>960</output>

<result>960</result>