Notes for Slide 08
The location of nested blocks is by convention
to the right of the "outer" block. Thus, when
nesting a third block, it is indented to the
right of the second block, which is indented to
the right of the first (and outer-most) block.
1, 2, 3, 4, 5, 6, 7, [8 (top)], 9, 10, 11, [Lab]