3. Grupul de litere incepe cu:

AG-51-A??AG-51-B??AG-51-C??AG-51-D??AG-51-E??AG-51-F??AG-51-G??AG-51-H??AG-51-I??
AG-51-J??AG-51-K??AG-51-L??AG-51-M??AG-51-N??AG-51-O??AG-51-P??AG-51-Q??AG-51-R??
AG-51-S??AG-51-T??AG-51-U??AG-51-V??AG-51-W??AG-51-X??AG-51-Y??AG-51-Z??