[Bobbert]

Using the verb “agradecer,” what is the correct way to say: “I would appreciate it a lot if you ran the errands for me.” I'm not sure where or how to use "for me" in the sentence.

My attempts:

Te agradecería mucho si hicieras los mandados por mi.
Te agradecería mucho si me hicieras las mandados.

Are either of my translations correct? Is one better than the other?

Thank you for any help you can give me.