The next day: AC
Day 3: BD
Day 4: CD-ROM
Day 5: A.D.
Day 6: BC
This is a six-day cycle, three days of work and three days of rest. You can meet.
If you consider a national holiday, such as a weekend, then transfer from the interrupted holiday after the holiday!
Special holidays are not included, such as sick leave and maternity leave. Other funny festivals are not included, such as 1 1 month and Spring Festival.