def chicagoHour(parisHour: int) -> int:
    """Return the Chicago hour (12h time) given the Paris hour (24h time)."""
    chicagoHour = parisHour + 5
    twelveHour = chicagoHour % 12
    return 12 if twelveHour == 0 else twelveHour


print("Testing chicagoHour()...", end="")
assert chicagoHour(0) == 5
assert chicagoHour(3) == 8
assert chicagoHour(7) == 12
assert chicagoHour(8) == 1
assert chicagoHour(12) == 5
assert chicagoHour(15) == 8
assert chicagoHour(19) == 12
assert chicagoHour(20) == 1
assert chicagoHour(23) == 4
print("Passed!")