As stated in the syllabus:

All assignments must be submitted electronically. Please name the files using the following convention: <your USC username>.<ext>

So if your USC email address is tomato@usc.edu and you turn in your paper as a .pdf, the file you send me should simply be named: tomato.pdf. Only include the name of the assignment (‘Paper 1’, etc.) in the subject of the email.

Please keep this in mind in the future.