"Am un prenume lung."
Translation:I have a long first name.
This might be a good time to mention that the Romanian writes his/her family name first, followed by his/her given name(s), e.g. Codrescu Gheorghe and Gleveșeanu Iuliana.
Is prenume equal to say like Numele meu? Is it like English people "took" from you ;) first name and last name (as surname)?