HP 42s Time value of Money

[JCT]

Hi all...am new to the forum. I used a 28s in college (mechanical engineering) but sadly sold it at a yard sale years ago.

I now use a 12c at my desk and recently became the proud owner of a 42s.

Today is my first day with it and the manual lists a program for the solver for the time value of money. I was able to input the entire program but it is not working. I think the problem lies in line 14. The book has the following entry...

14 STO ST T

I don't know how to put a space between the "ST" and the "T" so in inserted the punctuation mark "_" so my line 14 now looks like this...

14 STO "ST_T"

So I guess I have two questions...

1) Do I use the function "STO" or do I type the alpha letters STO.

2) Either way, I need a space between the ST and the T and possibly even after the "STO"...how do I enter a space?

Thanks,

JT