It is not a Code. It is a Serial number and starts with 1160. There are 24 numbers in 6 sets of 4 numbers.
If the CD you bought from an authorized Adobe reseller then send it back and get another CD. In any event downloading it will work with a valid serial number.
You also have To sign in using an Adobe ID that is not tied to any Adobe subscription. You can't use any Adobe ID that has ever been associated with any Adobe subscription plan.