After two weeks of plugging their product, Dave shows a single Shick Quattro razor the company sent, and reads a very peculiar letter to Gaines from someone in the company; the Top Ten is now sponsored by myheadhurts.com; Canadian satirist Bruce McCall promotes his new book; The Vines perform "Ride."
Please solve the math problem below to unlock download mirrors for Late Show with David Letterman.
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