Please input the file pathname: 4_b1.txt

> startNewDay|01-Jan-2025

> hire|Bob|30
Done.

> hire|John|30
Done.

> setupTeam|Customer Relationship Team|Bob
Done.

> addTeamMember|Customer Relationship Team|John
Done.

> setupTeam|Production Team|John
Done.

> applyLeave|Bob|BL|12-Jan-2025|18-Jan-2025|Customer Relationship Team|John
Done.

> listTeamMembers
Customer Relationship Team:
Bob (Head of Team)
John
Acting heads:
12-Jan-2025 to 18-Jan-2025: John

Production Team:
John (Head of Team)


> undo

> listTeamMembers
Customer Relationship Team:
Bob (Head of Team)
John

Production Team:
John (Head of Team)


> redo

> listTeamMembers
Customer Relationship Team:
Bob (Head of Team)
John
Acting heads:
12-Jan-2025 to 18-Jan-2025: John

Production Team:
John (Head of Team)
