a-a a-c a-t a-z aaa aac aar aas aat aay aaz ac- aca acc acr acs act acy acz ar- ara arc arr ars art ary arz as- asa asc asr ass ast asy asz at- ata atc atr ats att atz ay- aya ayc ayr ays ayt ayz az- aza azs azt azy azz c-- caa cac car cas cat cay caz cca ccc ccr ccs cct ccz cra crc crr crs crt cry crz csa csc csr css cst csy csz cta ctc ctr cts ctt cty ctz cya cyc cyr cys cyt cz- czc czt ra- raa rac rar ras rat ray raz rca rcc rcr rcs rct rra rrc rrr rrs rrt rsa rsc rsr rss rst rta rtc rtr rts rtt rty rtz ry- rya ryc ryr rys ryy ryz rza rzy saa sac sar sas sat say saz sca scc scr scs sct sr- sra src srr srs srt sry ss- ssa ssc ssr sss sst ssz sta stc str sts stt sty stz sy- sya syc syr sys syt sza szr taa tac tar tas tat tay taz tca tcc tcr tcs tct tra trc trr trs trt try trz tsa tsc tsr tss tst tsy tta ttc ttr tts ttt tty tya tyc tyr tys tyt tza tzs yaa yac yar yas yat yay yaz yca ycc ycs ycy yra yrc yrs yrt ysa ysc ysr yss yst ysy ysz yta ytc ytr yts ytt yyc yys yyt yyy yyz yzr yzy zaa zac zar zas zat zay zaz zcs zrs zsa zst zsz zta ztr zzr zzs zzt zzy zzz