If you selected a printed copy of the proceedings, there will be a copy for you at the check-in table. 

If you selected proceedings download, you should have already received an email with a link to the digital proceedings. Link to Digital Proceedings

If you don’t remember, your selection will be listed on the check-in sheets, it is displayed on the PDF ticket your received when you registered, and if you selected printed proceedings, there will be a red sticker on your name tag (please remove the sticker when you pick up your proceedings).