where's the timing marks on a93 sonata 3.0V6 for the front and rear heads

I appreciate you looking into this for me.However I have not found the answers out yet.I was told that a new cam was replaced in the car but I'm not sure whether it's the rear or front and I also heared that this particular vehicle has a interference motor in it so I know by that it's probable that a valve may be bent since the timing belt was broken.In your opinion would it be better to rebuild the heads or just get new ones.Better yet is it possible for you to contact me through my email at slo_gruv69@yahoo.com.Any helpful imformation you could give me would be helpful and thanks again for taking the time out to respond to. my question