Analysis of the time of two shifts in a shopping mall:

The working hours depend on the business hours of the shopping mall. For example, the shopping mall is open for 16 hours from 8: 11 a.m. to 2: 11 p.m., which is divided into two shifts (two shifts). The first group of people work for 8 hours from 8: 11 p.m. to 4: 11 p.m., while the other group works for 8 hours from 4: 11 p.m. to 2: 11 p.m..

For example, there are still three shifts, that is. ...