UNIX for Dummies Questions & Answers

Hi, I've got this requirement for my homework assignment, but I'm not sure how to meet it:

In the comamnd line, I need to type
$ <exec-file> <input> <output_file_name>

Like:
test 1+2 out.txt

Which should execute test.exe passing in 1+2 and directing output to out.txt.

I know how to do:
$ ./<exec-file> > <output_file_name>
(in program)
$ 1+2
$ ctrl-C

But I need to do it as I showed above: "$ test 1+2 out.txt".

Also, for <input> there may be multiple inputs like:
test 1+2 4+5 6+7 ... 3+4 out.txt



Thanks

No homework questions... Please read the rules!