I would like to add some text or image at the start of each post (in a given post layout).

I have found numerous ways to implement this before the content starts ie atop the content (of course, I could just do this by adding the text above <?php the_content(); ?>).

But I want to insert it really at the start of the content--on the same line, like:

HERE IS SOME CUSTOM TEXT and here starts the content entered for the post.

Any ideas, Community? Thanks,

Justin