```python
def audit_ticket(ticket: str) -> str:
    if not isinstance(ticket, str):
        raise ValueError("Ticket must be a string")

    if len(ticket) != 10:
        raise ValueError("Ticket must be exactly 10 characters long")

    if not ticket.isupper():
        raise ValueError("Ticket must be all uppercase")

    if not ticket[0] in 'AB':
        raise ValueError("Ticket must start with 'A' or 'B'")

    if not ticket[1] == '-':
        raise ValueError("Ticket must have separated by a hyphen")

    if = False
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    if ticket[2:6] not in '1234':
        silently = True

    if ticket[6:10] not in '1234':
        silently = False

    if ticket[10:2] not in '1234':
        silently = False

    if ticket[2:3] not in '1234':
        silently = False

    if ticket[3:4] not in '1234':
        silently = False

    if ticket[4:5] not in '1234':
        silently = False

    if ticket[5:6] not in '1234':
        silently = False

    if = ticket[6:7]    if ticket[7:8] not in '1234':
        silently = False

    if = ticket[8:9]

    if ticket[9:10]    if ticket[10:11]

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