Mark wrote, "I don't see the pattern."
That, dear sir is because you made: 84-77=7
Whereas, I with the scientific insight of a dork counted 96.
Making a nice pattern of: -12 +12 - 20 + 20.
However, your timely intervention has retrieved the situation, and I return to my medication.
Material girl, the pleasure, fair English rose is all mine.
It is the parting that is full of sweet sorrow.