a-a a-c a-z aaa aac aag aak aar aay aaz ac- aca acc acg ack acr acy acz ag- aga agc agg agk agr agy agz aka akc akg akk akr ar- ara arc arg ark arr ary arz ay- aya ayc ayk ayr ayz az- aza azg azy azz c-- caa cac cag cak car cay caz cca ccc ccg cck ccr ccz cga cgc cgg cgr cgy cka ckc cky cra crc crg crk crr cry crz cya cyc cyg cyk cyr cz- czc czk gaa gac gag gak gar gay gaz gca gcc gcg gck gcr gga ggc ggg ggr ggz gka gra grc grg grk grr gry gy- gya gyr gza gzr k-z ka- kaa kac kag kak kar kay kaz kca kcc kcg kck kcr kga kgc kgy kkc kkk kkr kky kra krc krg krk krr kry kya kyc kyr kyz kzy ra- raa rac rag rak rar ray raz rca rcc rcg rcr rga rgc rgg rgk rgr rkc rkg rkk rky rkz rra rrc rrg rrk rrr ry- rya ryc ryg ryk ryr ryy ryz rza rzy yaa yac yag yak yar yay yaz yca ycc ycy yga ygc yka ykk yra yrc yrg yyc yyg yyy yyz yzr yzy z-g zaa zac zag zak zar zay zaz zgg zka zzr zzy zzz