C/C++

So my question is simple ; of the two which would be advisable to learn first.

All the C++ books tell me to learn C++ over C ,but on the internet im told that learning C gives better grasps of concepts.

Which should i learn first and why?

I'm gainfully employed, have been for years, and none of my jobs ever needed C++, Java, .NET, or whatever swill >>31 has been suffering through.

There are plenty of great jobs out there. It's not my fault if you can't find them (but thanks for leaving them for awesome old me!).