I need to create a number sequence file for data listed as shown.The groups
would be created from the first 12 digits. Example:

UPI SEQUENTIAL NUMBER
8DEB90020849A059 0001
8DEB90020849B059 0001
8DEB90022591A059 0002
8DEB90022591B059 0002
8DEB90022796A059 0003
8DEB90022796B059 0003
8DEB90022796C059 0003
8DEB90022796D059 0003

thanks in anticipation


Bill