Notes for Slide 09
This slide shows that in this example the if-else-endif block
consists of a total of five statements, counting the if-statement,
the else-statement, and the endif-statement. One of two statements
in between will run, and exactly which of these two statement will
run depends on the value of the guess variable.
1, 2, 3, 4, 5, 6, 7, 8, [9 (top)], 10, 11, 12, 13, [Lab]