The school teaching building has 4 floors, each floor has 8 classrooms, and each classroom has 8 lights, how many lights are there in total?
学校教学楼有4层，每层有8个教室，每个教室有8个灯，求一共有多少灯？
<gadget id="calculator">8 * 8 * 4</gadget>
<output>256</output>

<result>256</result>