There are 11 stations on a certain railway. There is an enthusiast who collects train tickets. He collects the train tickets sold at all stations on this line leading to other stations. How many tickets does he have to collect in total?
某铁路上有11个车站，有一个收集火车票的爱好者，收集了这条线路上所有车站发售的通往其它各个车站的火车票，他一共要收集多少张．
<gadget id="calculator">11 * 10</gadget>
<output>110</output>

<result>110</result>