Parameter variables help

Hello,

I took a small text file with one word on each line and used the "set" command.
I am trying to take one variable with an integer, lets say $x
and and use that integer to retrieve the parameter variable.
So if $x = 2 and I wanted to use that variable to make the parameter variable $2, what syntax would I use for that?
I've tried some combinations to no avail.
$$x would obviously give the pid+x
$"$x" doesn't work and so on.
Any help is appreciated.

Try:

Thank you.
eval made all of the difference. I'm still not entirely sure what eval can do, but it certainly worked in this instance.