Good afternoon.
I have a fairly simple question (I think).

Let's say for example that in my program I have these two variables `var0` and `var1`.

During execution if "I find out" that the variable I am using is `var0` (because I randomly select it) then I have to select the other (`var1`) because I have to send it as a parameter to a function.

In summary, given one variable, how do I use the other?
This in two variables..in `3` variables? Do I need a list?