1. Before call to sneaky:

   An arrow points from a box at left labeled p to a box at right containing 77.

2. Value of p is plugged in for temp:

   Same diagram as in (1), except a box labeled “temp” has been added below p and also points to the box with 77.

3. Change made to *temp:

   Same diagram as in (2), except 77 has changed to 99.

4. After call to sneaky:

   Same diagram as in (3), except the “temp” box and arrow have been removed.