-ic a-a a-b a-c a-i aaa aab aac aag aah aai aak aas ab- aba abb abc abg abh abi abk abs ac- aca acb acc acg ach aci ack acs ag- aga agb agc agg agh agi agk ags aha ahb ahc ahg ahh ahi ahk ahs ai- aia aib aic aig aih aii aik ais aka akb akc akg akh aki akk aks as- asa asb asc asg ash asi ask ass baa bab bac bag bah bai bak bas bba bbb bbc bbg bbh bbi bbk bbs bca bcb bcc bcg bch bci bck bcs bga bgb bgc bgg bgh bgi bgk bgs bha bhb bhc bhg bhh bhi bhk bhs bi- bia bib bic big bih bii bik bis bka bkb bkc bkg bkk bks bsa bsb bsc bsg bsh bsi bsk bss c-- caa cab cac cag cah cai cak cas cba cbb cbc cbg cbh cbi cbk cbs cca ccb ccc ccg cch cci cck ccs cga cgb cgc cgg cgh cgi cgs ch- cha chb chc chg chh chi chk chs ci- cia cib cic cig cih cii cik cis cka ckb ckc ckh cki cks csa csb csc csg csh csi csk css gaa gab gac gag gah gai gak gas gba gbc gbg gbh gbi gbk gbs gca gcb gcc gcg gch gci gck gcs gga ggb ggc ggg ggh ggi ggs gha ghb ghc ghg ghh ghi ghs gia gib gic gig gih gii gik gis gka gkb gkh gks gsa gsb gsc gsg gsi gsk gss h-i haa hab hac hag hah hai hak has hba hbb hbc hbg hbh hbi hbk hbs hca hcb hcc hcg hch hci hck hcs hga hgb hgc hgg hgh hgi hgk hgs hha hhb hhc hhg hhh hhi hhk hhs hia hib hic hig hih hii hik his hka hkb hkg hkh hki hkk hks hsa hsb hsc hsg hsh hsi hsk hss ia- iaa iab iac iag iah iai ias iba ibb ibc ibg ibh ibi ibk ibs ica icb icc icg ich ici ick ics iga igb igc igg igh igi igk igs iha ihb ihc ihg ihh ihi ihk ihs iia iib iic iih iii iis ika ikb ikc iki ikk iks is- isa isb isc isg ish isi isk iss ka- kaa kab kac kag kah kai kak kas kba kbb kbc kbh kbi kbk kbs kca kcb kcc kcg kch kci kck kcs kga kgb kgc kgh kgi kgs kha khh khi khk khs kia kib kic kig kih kii kik kis kkb kkc kkh kki kkk kks ksa ksb ksc ksg ksh ksi ksk kss saa sab sac sag sah sai sak sas sba sbb sbc sbg sbh sbi sbk sbs sca scb scc scg sch sci sck scs sga sgb sgc sgg sgh sgi sgk sgs sh- sha shb shc shg shh shi shk shs sia sib sic sig sih sii sik sis sk- ska skb skc skg skh ski skk sks ss- ssa ssb ssc ssg ssh ssi ssk sss