HERE, you can see the ADVANCED model in cleaning.
here
I managed to see this advanced kind in just two places in Istanbul, and one place in small rich town in Germany.

In this new system, not only it has an ADJUSTABLE metal nozzle, but the plastic COVER SEAT it changes by pressing that red button on the side of toilet.
So here not only you can use the water in the right area, but also it prevents you NOT to take any VDs from the surface of toilet seat.

So here not only we could save loads of toilet paper rolls and trees over years , but also prevent you to take any harmful germs from the previous occupier.