Adsense on new site

Hi

I am new to wordpress and have just set up my first blog using the prosense theme. I previously used blogger so I imported my blog and my new adsense blog is up and running and has adsense adverts included.

I did not put in any code for the adsense adds they just appeared.

Now I am stuck as to where I find the code for these adds and how can I track them for my wordpress blog.

Can anyone help.

Thanks