Here are the codes for each class:
1st period:
Class ID: 8371725
Password: firstperiod
3rd period:
Class ID: 8371746
Password: thirdperiod
4th period:
Class ID: 8371752
Password: fourthperiod
5th period:
Class ID:8371764
Password: fifthperiod
6th period:
Class ID: 8371780
Password: sixthperiod
7th period:
Class ID: 8371787
Password: seventhpd