On the clock, how many seconds have elapsed since the second hand goes from the number 10 to the number 1?
钟表上，秒针从数字10走到数字1，经过了多少秒．
<gadget id="calculator">12 - 10</gadget>
<output>2</output>

<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<result>15</result>