It took Yangyang 12 seconds to go from the first floor to the third floor. How many seconds does it take him to go from the first floor to the sixth floor?
阳阳从1楼到3楼用了12秒，他从一楼到六楼需要多少秒．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

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

<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">6 * 5</gadget>
<output>30</output>

<result>30</result>