It took Fangfang 36 seconds to go upstairs from the first floor to the third floor. At this speed, how many seconds would it take her to walk from the first floor to the seventh floor?
芳芳上楼，从一楼到三楼用了36秒，照这样的速度，她从一楼到七楼要走多少秒？
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">36 / 2</gadget>
<output>18</output>

<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">18 * 6</gadget>
<output>108</output>

<result>108</result>