-ic -th a-a a-b a-c a-i a-t aaa aab aac aag aah aai aak aar aas aat ab- aba abb abc abg abh abi abk abr abs abt ac- aca acb acc acg ach aci ack acr acs act ag- aga agb agc agg agh agi agk agr ags agt aha ahb ahc ahg ahh ahi ahk ahr ahs aht ai- aia aib aic aig aih aii aik air ais ait aka akb akc akg akh aki akk akr aks ar- ara arb arc arg arh ari ark arr ars art as- asa asb asc asg ash asi ask asr ass ast at- ata atb atc atg ath ati atr ats att baa bab bac bag bah bai bak bar bas bat bba bbb bbc bbg bbh bbi bbk bbr bbs bbt bca bcb bcc bcg bch bci bck bcr bcs bct bga bgb bgc bgg bgh bgi bgk bgr bgs bgt bha bhb bhc bhg bhh bhi bhk bhr bhs bht bi- bia bib bic big bih bii bik bir bis bit bka bkb bkc bkg bkk bkr bks bkt bra brb brg brh bri brk brr brs brt bsa bsb bsc bsg bsh bsi bsk bsr bss bst bta btb btc btg bth bti btk btr bts btt c-- caa cab cac cag cah cai cak car cas cat cba cbb cbc cbg cbh cbi cbk cbr cbs cbt cca ccb ccc ccg cch cci cck ccr ccs cct cga cgb cgc cgg cgh cgi cgr cgs cgt ch- cha chb chc chg chh chi chk chr chs cht ci- cia cib cic cig cih cii cik cir cis cit cka ckb ckc ckh cki cks ckt cra crb crc crg crh cri crk crr crs crt csa csb csc csg csh csi csk csr css cst cta ctb ctc ctg cth cti ctk ctr cts ctt gaa gab gac gag gah gai gak gar gas gat gba gbc gbg gbh gbi gbk gbr gbs gbt gca gcb gcc gcg gch gci gck gcr gcs gct gga ggb ggc ggg ggh ggi ggr ggs ggt gha ghb ghc ghg ghh ghi ghr ghs ght gia gib gic gig gih gii gik gir gis git gka gkb gkh gks gkt gra grb grc grg grh gri grk grr grs grt gsa gsb gsc gsg gsi gsk gsr gss gst gta gtb gtc gtg gth gti gtk gtr gts gtt h-i haa hab hac hag hah hai hak har has hat hba hbb hbc hbg hbh hbi hbk hbr hbs hbt hca hcb hcc hcg hch hci hck hcr hcs hct hga hgb hgc hgg hgh hgi hgk hgr hgs hgt hha hhb hhc hhg hhh hhi hhk hhr hhs hht hia hib hic hig hih hii hik hir his hit hka hkb hkg hkh hki hkk hkr hks hkt hr- hra hrb hrc hrg hrh hri hrk hrr hrs hrt hsa hsb hsc hsg hsh hsi hsk hsr hss hst hta htb htc htg hth hti htk htr hts htt ia- iaa iab iac iag iah iai iar ias iat iba ibb ibc ibg ibh ibi ibk ibr ibs ibt ica icb icc icg ich ici ick icr ics ict iga igb igc igg igh igi igk igr igs igt iha ihb ihc ihg ihh ihi ihk ihr ihs iht iia iib iic iih iii iir iis iit ika ikb ikc iki ikk ikr iks ikt ir- ira irb irc irg iri irk irr irs irt is- isa isb isc isg ish isi isk isr iss ist ita itb itc itg ith iti itk its itt k-t ka- kaa kab kac kag kah kai kak kar kas kat kba kbb kbc kbh kbi kbk kbr kbs kca kcb kcc kcg kch kci kck kcr kcs kct kga kgb kgc kgh kgi kgs kha khh khi khk khr khs kia kib kic kig kih kii kik kir kis kit kkb kkc kkh kki kkk kkr kks kkt kra krc krg kri krk krr krs krt ksa ksb ksc ksg ksh ksi ksk ksr kss kst kta ktb ktc ktg kth ktk ktr kts ktt ra- raa rab rac rag rah rai rak rar ras rat rba rbb rbc rbg rbh rbi rbk rbr rbs rbt rca rcb rcc rcg rch rci rcr rcs rct rga rgb rgc rgg rgh rgi rgk rgr rgs rgt rh- rha rhb rhc rhg rhh rhi rhr rhs rht ria rib ric rig rih rii rik rir ris rit rkb rkc rkg rkk rks rkt rra rrb rrc rrg rrh rri rrk rrr rrs rrt rsa rsb rsc rsg rsh rsi rsk rsr rss rst rta rtb rtc rtg rti rtk rtr rts rtt saa sab sac sag sah sai sak sar sas sat sba sbb sbc sbg sbh sbi sbk sbr sbs sbt sca scb scc scg sch sci sck scr scs sct sga sgb sgc sgg sgh sgi sgk sgr sgs sgt sh- sha shb shc shg shh shi shk shr shs sht sia sib sic sig sih sii sik sir sis sit sk- ska skb skc skg skh ski skk skr sks skt sr- sra srb src srg srh sri srk srr srs srt ss- ssa ssb ssc ssg ssh ssi ssk ssr sss sst sta stb stc stg sth sti stk str sts stt taa tab tac tag tah tai tak tar tas tat tba tbb tbc tbg tbh tbi tbk tbr tbs tbt tca tcb tcc tcg tch tci tck tcr tcs tct tga tgb tgc tgg tgh tgi tgk tgr tgs tgt th- tha thb thc thg thh thi thk thr ths tht tia tib tic tig tih tii tik tir tis tit tka tkb tkc tkg tkk tkr tks tkt tra trb trc trg trh tri trk trr trs trt tsa tsb tsc tsg tsh tsi tsk tsr tss tst tta ttb ttc ttg tth tti ttk ttr tts ttt

a-ak a-ha a-ii aaaa aaab aaac aaah aaai aaar aaas aaba aabb aabc aabh aabi aabt aaca aacb