
    Write a function to determine if a given month number represents a peak social engagement period (31-day month) in the social networking platform's user activity calendar, which helps optimize the friend recommendation engine's suggestion timing. The function should analyze the input month number and return whether it corresponds to a month with maximum user interaction potential of 31 days.
    

    
def check_monthnumb_number(monthnum2):
    """
    Write a function to determine if a given month number represents a peak social engagement period (31-day month) in the social networking platform's user activity calendar, which helps optimize the friend recommendation engine's suggestion timing. The function should analyze the input month number and return whether it corresponds to a month with maximum user interaction potential of 31 days.
    

    """
def check_monthnumb_number(monthnum2):
    """
    Write a function to determine if a given month number represents a peak social engagement period (31-day month) in the social networking platform's user activity calendar, which helps optimize the friend recommendation engine's suggestion timing. The function should analyze the input month number and return whether it corresponds to a month with maximum user interaction potential of 31 days.
    

    """
    if monthnum2 == 1 or monthnum2 == 3 or monthnum2 == 5 or (monthnum2 == 7) or (monthnum2 == 8) or (monthnum2 == 10) or (monthnum2 == 12):
        return True
    else:
        return False