In view of the difficulties in job-hunting, a group of college graduates who failed to find jobs came up with an alternative way. They opened a store on Taobao and auctioned themselves. The prices ranged from 2000 yuan to 3000 yuan. They tried this method so that they could be employed as soon as possible. On Taobao, the name of the store is "I am the monitor, these are my classmates". According to the instructions for goods, this is a mathematics class of University of Northern China. And the store...