<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def classmarkEnquiry():
 """CLASSMARK ENQUIRY Section 9.1.12"""

    a = TpPd(pd=0x6)
    b = MessageType(mesType=0x13)  # 00010011
    packet = a / b
    return packet