If there are 14 steps to go up each floor of a building, how many steps do you need to walk to the third floor?
一座楼房每上一层要走14级台阶，到三楼共要走多少级台阶．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">14 * 2</gadget>
<output>28</output>

<result>28</result>