There are 60 athletes in the second grade to participate in the school long-distance running competition, and the numbers are arranged from 1 to 60. How many "1"s appear in these numbers?
二年级有60名运动员参加学校长跑比赛，号码排列是1到60．这些号码中共出现多少个"1"．
<gadget id="calculator">10 + 6</gadget>
<output>16</output>

<result>16</result>