Xiao Liang lives on the 20th floor. One day he took the elevator home. It took him 10 seconds to get from the first floor to the sixth floor, how many seconds will it take him to get home?
小亮的家住在20层，一天他乘电梯回家．他从第一层到第六层花了10秒，他还需要多少秒才到家？
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">10 / 5</gadget>
<output>2</output>

<gadget id="calculator">20 - 1</gadget>
<output>19</output>

<gadget id="calculator">2 * 19</gadget>
<output>38</output>

<gadget id="calculator">38 - 10</gadget>
<output>28</output>

<result>28</result>