How can you calculate anything with CALL/lambda?

I mean, if you only use CALL, rings and text/number inputs, AFAIK you can only get a ring, an empty value or the exact value you provided:

So how can you, for example, add 2 numbers together with this?

IIRC @18001767679 has done this sort of stuff - search on forum for church and I'm sure it will appear

The point I think you're missing is that your rings can take inputs, so

is the representation of the number 3.

I've tryed that last year but it looks like that I'm more dumb this year :C