Xiao Ming lives on the eighth floor. It takes him 12 seconds to take the elevator from the first floor to the third floor. How long does it take him to go from the first floor to the eighth floor?
小明家住在八楼，他坐电梯从一楼到三楼要12秒，他从一楼到八楼需要多长时间？
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">6 * 7</gadget>
<output>42</output>

<result>42</result>