3. Grupul de litere incepe cu:

B-89-A??B-89-B??B-89-C??B-89-D??B-89-E??B-89-F??B-89-G??B-89-H??B-89-I??
B-89-J??B-89-K??B-89-L??B-89-M??B-89-N??B-89-O??B-89-P??B-89-Q??B-89-R??
B-89-S??B-89-T??B-89-U??B-89-V??B-89-W??B-89-X??B-89-Y??B-89-Z??