Iris stood up as Professor Hadley motioned her to the front of the class, and walked over to the blackboard. Listening as the professor gave out the pinnacles, Iris picked up a piece of chalk and rolled it in her palm.

The third pinnacle... Which one was that again? Oh, brilliant. Iris couldn't remember which one that was. The first one was month plus day.... and the second one was day and year... so the third one was the first plus second pinnacle. Oh, that wasn't fair! Well, no. I was entirely fair but that's not the point. Iris couldn't remember her first two pinnacles.

Turning to the blackboard, Iris put her chalk to the board. Time to figure out the first two, first.

month of birth + day of birth
February + 13
02 + (1 + 3)
02 + 4 = 6

day of birth + year of birth
13 + 2058
(1 + 3) + (2 + 0 + 5 + 8)
4 + 15
4 + (1 + 5)
4 + 6 = 10 = 1

First Pinnacle + Second Pinnacle
6 + 1 = 7

Setting her chalk down, Iris looked over her workings out. They all looked right... She just hoped they WERE correct, because if they weren't... well; wouldn't THAT be embarrassing?