“Sec 16 sitting .” – September 2016 has gone so there’s no point even thinking about that
December 2016 is too far away from the qwerty keyboard to be confused with September 2016 so I can’t believe that that’s what you are referring to
And if you ARE talking about December P7 ACCA sitting … you need to simply read, read and read again the questions and answers from within a revision kit / exam kit