Just a quick reminder of what the first assignment was. All
problems are from the printed notes, so I've just listed the
exercise number and a few words to remind you which one is which:

ex description
-- -----------
 2 seconds in year
 3 dollars to turkish
 4 length of martian year
 8 cannonball height calculation
 9 table of cannonball heights by time
19 say numbers up to 999
20 say numbers up to maximum int
21 say ordinals
22 split dates into three components
23 say dates
24 say time
30 calculate days in february