-ic a-a a-b a-c a-i aaa aab aac aag aai aak aas ab- aba abb abc abg abi abk abs ac- aca acb acc acg aci ack acs ag- aga agb agc agg agi agk ags ai- aia aib aic aig aii aik ais aka akb akc akg aki akk aks as- asa asb asc asg asi ask ass baa bab bac bag bai bak bas bba bbb bbc bbg bbi bbk bbs bca bcb bcc bcg bci bck bcs bga bgb bgc bgg bgi bgk bgs bi- bia bib bic big bii bik bis bka bkb bkc bkg bkk bks bsa bsb bsc bsg bsi bsk bss c-- caa cab cac cag cai cak cas cba cbb cbc cbg cbi cbk cbs cca ccb ccc ccg cci cck ccs cga cgb cgc cgg cgi cgs ci- cia cib cic cig cii cik cis cka ckb ckc cki cks csa csb csc csg csi csk css gaa gab gac gag gai gak gas gba gbc gbg gbi gbk gbs gca gcb gcc gcg gci gck gcs gga ggb ggc ggg ggi ggs gia gib gic gig gii gik gis gka gkb gks gsa gsb gsc gsg gsi gsk gss ia- iaa iab iac iag iai ias iba ibb ibc ibg ibi ibk ibs ica icb icc icg ici ick ics iga igb igc igg igi igk igs iia iib iic iii iis ika ikb ikc iki ikk iks is- isa isb isc isg isi isk iss ka- kaa kab kac kag kai kak kas kba kbb kbc kbi kbk kbs kca kcb kcc kcg kci kck kcs kga kgb kgc kgi kgs kia kib kic kig kii kik kis kkb kkc kki kkk kks ksa ksb ksc ksg ksi ksk kss saa sab sac sag sai sak sas sba sbb sbc sbg sbi sbk sbs sca scb scc scg sci sck scs sga sgb sgc sgg sgi sgk sgs sia sib sic sig sii sik sis sk- ska skb skc skg ski skk sks ss- ssa ssb ssc ssg ssi ssk sss

a-ak a-ii aaaa aaab aaac aaai aaas aaba aabb aabc aabi aaca aacb aacc aaci aack aacs aaib aaic aaii aais aaka aasa aasc aasi aass abaa abab abac abag abai abak abas abb- abba abbb abbi abbs abca abcb abcc abci abcs abia abib abic abig abis abs- absa absi abss acaa acab acac acag acai acas acba acca accc acci accs acga acgi acgs aci- acia acic acis acks acsa acsc acsi acss agac agag agai agas agba agca agcc agga aggi agia agib agic agig agii agis agsa agsg aiai aias aiba aica aicc aics aiga aiia aiib aiic aika aiki aiks aisa aisb aisg aisi aisk akaa akai akas akca akia akik akis akka akki aksa aksi asaa asab asac asag asai asak asas asba asc- asca ascb ascc asci asia asic asii asik asis aska aski asks assa assc assi assk asss ba-i baaa baak baas baba babb babi babs bac- baca bacc baci back bacs baga bagg bagi bags baia baib baic baig baik bais bak- baka baki baks basa basc basi bask bass bbas bbbb bbbs bbci bbga bcaa bcas bcbc bcbg bcbs bcca bccc bcci bccs bcgs bcia bcis bcsa bcsc bcss bgca bggs bgia biak bias biba bibb bibi bibs bica bicc bicg bici bick bics biga bigb bigc bigg bigs biis bis- bisa bisc bisk biss bsaa bsac bsas bsci bscs bsgs bsic bssc caaa caab caac caas caba cabg cabi cabs cac- caca cacc caci cack caga cagg cagi cags caia caib caic caik cais caka casa casb casc casi cask cass cbac cbbc cbbs cbca cbcc cbcs cbga cbgb cbia cbka cbkg cbsa cbsc cbsi ccaa ccab ccac ccag ccai ccas ccba ccbc ccca cccb cccc ccci cccs ccga ccgc ccgs ccic ccii ccis ccsa ccsg ccsi ccss cgac cgas cgcc cgcg cggs cgis cgsb cgss ciaa ciak cias ciba cibc cibi cica cicc cici cics ciga cigi cigs ciia ciii ciis cika cis- cisa cisc cisk ciss ckac ckbc ckbi ckck ckcs ckga cksa cksb csaa csab csac csak csas cscb cscc csci cscs csia csib csik csis cska csks cssa gaas gaba gabb gabi gabs gack gaga gagg gagi gags gaia gaig gais gaki gasa gasb gasc gasi gask gass gbag gbas gbbs gc-c gcaa gcbc gccc gccs gcic gcii gcss gggg ggss giaa giac giai gias giba gibb gibs gica gick giga gigg gigi gigs giis gisa giss gsab gsis gskb iaaa iaac iaai iaas iaba iaca iacc iacs iags iaia iais iasa iasc iasi iask ibac ibas ibca ibcs ibga ibia ibis ibsa ibss icaa icab icac icag icai icas icbc icbs icca iccb iccc icci iccs icga icgc icis icks icsa icsb icsc icsi icss igac igas igba igbc igcc igga iggs igia igis igkc iiac iias iica iiii iiis iisc iisi ikig ikki is-a isac isai isak isas isba isca iscc isci iscs isgc isia isic isis iska issa issc issi isss k-ci kaaa kaab kaag kaai kaak kaas kaba kabb kabc kabg kabi kacb kacc kaci kacs kag- kaga kagb kagc kagg kagi kags kaia kaib kaic kaig kaii kaik kais kaka kakc kaki kakk kaks kas- kasa kasb kasc kasi kask kass kbaa kbab kbac kbai kbak kbas kbba kbbb kbbc kbbg kbbi kbbk kbbs kbca kbcb kbci kbck kbcs kbga kbgb kbgg kbia kbib kbic kbig kbik kbis kbkb kbkg kbkk kbsa kbsb kbsg kbsi kbsk kbss kcaa kcab kcac kcai kcas kcba kcbc kcbi kcbk kcbs kcca kccb kccc kcci kcck kcgc kcgi kcgs kcic kcii kcis kckc kckk kcsa kcsb kcsc kcsg kcsi kcss kgab kgac kgak kgas kgba kgbb kgbc kgcb kgcc kgga kggg kggi kgia kgks kiab kiac kiai kias kiba kibb kibc kibg kibi kibs kica kicb kicc kicg kick kics kiga kigc kigs kiia kiic kiii kiik kiis kika kikc kiki kikk kisa kisc kisi kisk kiss kkaa kkac kkag kkai kkba kkbb kkbg kkbi kkbs kkcb kkci kkck kkcs kkgb