There is a 15-meter-long piece of wood, and the master worker needs to divide it into 5 sections. It is known that it takes 8 seconds to saw once. Do you know how many seconds the master worker needs to complete the task.
有一根15米长的木料，工人师傅要把它分成5段，已知锯一次要8秒，你知道工人师傅共需要多少秒才能完成任务．
<gadget id="calculator">5 - 1</gadget>
<output>4</output>

<gadget id="calculator">4 * 8</gadget>
<output>32</output>

<result>32</result>