Add adsense Code After Title

Hi, I searched on the forum and google for a month, and didn’t find any answer.
my question is : how to add an adsense code after title,
here is a screenshot :
http://gulf-up.com/do.php?img=80674
I’m using Pluto clean wordpress theme.
I found some tricks like creating an ID in stylesheet and adding it to the Header.
but my header file is different from those I found, also I found problem to determine the margin …
thankks