#print
It is often possible to leave out braces,
but when you do be sure that you get the
answer you really wanted.
For example, does
  x sup a over b
produce the same output as
  x sup {a over b}
Answer yes or no.
#copyin
#user
#uncopyin
#match no
#log
#next
5.1h 10
5.2g 5