The traffic signal light at a certain intersection changes every 50 seconds. From 9:00 am to 9:10 am, how many times can this traffic signal light be changed.
某路口的交通信号灯每50秒转换一次，从上午9时到9时10分，这个交通信号灯能转换多少次．
<gadget id="calculator">600 / 50</gadget>
<output>12</output>

<gadget id="calculator">12 + 1</gadget>
<output>13</output>

<result>13</result>