Peugeot 406 about removing the door trim

Friends, I need to remove the door and roof of my 406 vehicle, but I couldn't put it in. Can anyone help? I don't want to break it. It's either expensive or not available.

Hello teacher. nails are sliding type, sir. There is no need to force too much by pressing on the laths, because I do not know the direction of forward or backward inner nail insertion, if you do it, it will come out. Most of the nails are broken on the vehicle, they are changing, sir.

Thank you