Length of result erroneous: 9 digits instead of 8

Essentially the same issue as the other one for this repository but with a different serial number. In my case: AA112A00761437DB is inputted, which generates a code of 163FBF85D. And in the same input scenarios as the other user, both 163FBF85 and 63FBF85D do not work.
If you can provide assistance for my specific case that would be greatly appreciated.