That seemed like such an easy question at first. Just plug them in and see what happens. If one of the rotors goes the wrong way, unplug that one and turn the plug over. So simple - but the controller is also working tail rotation. OK, still easy. Once you get both rotors going the correct direction you need to determine if they are corrected to the correct port (upper port or lower port). If you give it enough throttle for the tail to rotate, the tail will either work with the left stick or it will work opposite the movement of the left stick. IF it works backwards, maintain the orientation of the two plugs, but swap their locations.
You should be golden.

And now the most important part for the rest of us - the report. There is probably a reason why you are doing this. Let us know; 1) why you are using the transplanted controller, 2) does it work as you planned, and 3) what are the correct connections so others can to it too? And of course a photo would be good.

Thanks, Soloboss