#print
The lessons from this point on are from the old C script.
They have not been cleaned up as much as they could, so some
are not very illuminating, and the code they illustrate
is not always the best. You're welcome to try them nonetheless,
but be warned.
If you want to proceed, type yes;
otherwise, type bye.
#copyin
#user
#uncopyin
#match yes
#next 
11.1a 10
11.2a 5