-ic a-a a-b a-c a-i aaa aab aac aad aai aak aar aas aay ab- aba abb abc abd abi abk abr abs aby ac- aca acb acc acd aci ack acr acs acy ad- ada adb adc add adi adk adr ads ady ai- aia aib aic aid aii aik air ais aiy aka akb akc akd aki akk akr aks ar- ara arb arc ard ari ark arr ars ary as- asa asb asc asd asi ask asr ass asy ay- aya ayc ayd ayi ayk ayr ays baa bab bac bad bai bak bar bas bay bba bbb bbc bbd bbi bbk bbr bbs bby bca bcb bcc bcd bci bck bcr bcs bcy bda bdb bdc bdd bdi bdk bdr bds bdy bi- bia bib bic bid bii bik bir bis biy bka bkb bkc bkk bkr bks bra brb brd bri brk brr brs bry bsa bsb bsc bsd bsi bsk bsr bss bsy by- bya byc byd byi byk byr bys c-- caa cab cac cad cai cak car cas cay cba cbb cbc cbd cbi cbk cbr cbs cby cca ccb ccc ccd cci cck ccr ccs cda cdb cdc cdd cdi cdk cdr cds cdy ci- cia cib cic cid cii cik cir cis cka ckb ckc ckd cki cks cky cra crb crc crd cri crk crr crs cry csa csb csc csd csi csk csr css csy cya cyb cyc cyd cyk cyr cys daa dab dac dad dai dak dar das day dba dbb dbc dbd dbi dbk dbr dbs dby dca dcb dcc dcd dci dck dcr dcs dda ddb ddc ddd ddi ddk ddr dds ddy di- dia dib dic did dii dik dir dis diy dka dkb dkc dki dkk dkr dks dra drb drc drd dri drk drr drs dry dsa dsb dsc dsd dsi dsk dsr dss dsy dy- dya dyb dyc dyd dyk dyr dys dyy i-d ia- iaa iab iac iad iai iar ias iba ibb ibc ibd ibi ibk ibr ibs iby ica icb icc icd ici ick icr ics icy ida idb idc idd idi idk idr ids idy iia iib iic iid iii iir iis ika ikb ikc iki ikk ikr iks ir- ira irb irc ird iri irk irr irs iry is- isa isb isc isd isi isk isr iss isy iya iyc iyr iys iyy ka- kaa kab kac kad kai kak kar kas kay kba kbb kbc kbd kbi kbk kbr kbs kca kcb kcc kcd kci kck kcr kcs kda kdb kdc kdk kdr kds kdy kia kib kic kid kii kik kir kis kkb kkc kki kkk kkr kks kky kra krc krd kri krk krr krs kry ksa ksb ksc ksd ksi ksk ksr kss kya kyc kyd kyr kys ra- raa rab rac rad rai rak rar ras ray rba rbb rbc rbd rbi rbk rbr rbs rca rcb rcc rcd rci rcr rcs rda rdb rdc rdd rdi rdr rds rdy ria rib ric rid rii rik rir ris riy rkb rkc rkk rks rky rra rrb rrc rrd rri rrk rrr rrs rsa rsb rsc rsd rsi rsk rsr rss ry- rya ryc ryd ryk ryr rys ryy saa sab sac sad sai sak sar sas say sba sbb sbc sbd sbi sbk sbr sbs sby sca scb scc scd sci sck scr scs sda sdb sdc sdd sdi sdk sdr sds sdy sia sib sic sid sii sik sir sis sk- ska skb skc skd ski skk skr sks sky sr- sra srb src srd sri srk srr srs sry ss- ssa ssb ssc ssd ssi ssk ssr sss sy- sya syb syc syd syi syk syr sys yaa yab yac yad yai yak yar yas yay ybc ybi ybr ybs yby yca ycc ycd yci ycs ycy yda yds ydy yid yii yir yis yka yki ykk yra yrc yrs ysa ysb ysc ysi ysk ysr yss ysy yyb yyc yys yyy