-ic a-a a-b a-c a-i aaa aab aac aag aah aai aak aan aao aas ab- aba abb abc abg abh abi abk abn abo abs ac- aca acb acc acg ach aci ack acn aco acs ag- aga agb agc agg agh agi agk agn ago ags aha ahb ahc ahg ahh ahi ahk ahn aho ahs ai- aia aib aic aig aih aii aik ain aio ais aka akb akc akg akh aki akk akn ako aks an- ana anb anc ang anh ani ank ann ano ans aoa aob aoc aog aoh aoi aok aon aoo aos as- asa asb asc asg ash asi ask asn aso ass baa bab bac bag bah bai bak ban bao bas bba bbb bbc bbg bbh bbi bbk bbn bbo bbs bca bcb bcc bcg bch bci bck bcn bco bcs bga bgb bgc bgg bgh bgi bgk bgn bgo bgs bha bhb bhc bhg bhh bhi bhk bho bhs bi- bia bib bic big bih bii bik bin bio bis bka bkb bkc bkg bkk bkn bko bks bna bnb bnc bng bni bnk bnn bno bns boa bob boc bog boh boi bok bon boo bos bsa bsb bsc bsg bsh bsi bsk bsn bso bss c-- caa cab cac cag cah cai cak can cao cas cba cbb cbc cbg cbh cbi cbk cbn cbo cbs cca ccb ccc ccg cch cci cck ccn cco ccs cga cgb cgc cgg cgh cgi cgn cgo cgs ch- cha chb chc chg chh chi chk chn cho chs ci- cia cib cic cig cih cii cik cin cio cis cka ckb ckc ckh cki cko cks cn- cna cnb cnc cng cnh cni cnn cno cns co- coa cob coc cog coh coi cok con coo cos csa csb csc csg csh csi csk csn cso css gaa gab gac gag gah gai gak gan gao gas gba gbc gbg gbh gbi gbk gbn gbo gbs gca gcb gcc gcg gch gci gck gcn gco gcs gga ggb ggc ggg ggh ggi ggn ggo ggs gha ghb ghc ghg ghh ghi ghn gho ghs gia gib gic gig gih gii gik gin gio gis gka gkb gkh gkn gko gks gna gnb gnc gni gnn gno gns goa gob goc gog goh goi gok gon goo gos gsa gsb gsc gsg gsi gsk gsn gso gss h-i haa hab hac hag hah hai hak han hao has hba hbb hbc hbg hbh hbi hbk hbn hbo hbs hca hcb hcc hcg hch hci hck hcn hco hcs hga hgb hgc hgg hgh hgi hgk hgn hgo hgs hha hhb hhc hhg hhh hhi hhk hhn hho hhs hia hib hic hig hih hii hik hin hio his hka hkb hkg hkh hki hkk hkn hko hks hna hnb hnc hng hnh hnk hnn hno hns hoa hob hoc hog hoh hoi hok hon hoo hos hsa hsb hsc hsg hsh hsi hsk hsn hss ia- iaa iab iac iag iah iai ian iao ias iba ibb ibc ibg ibh ibi ibk ibn ibo ibs ica icb icc icg ich ici ick icn ico ics iga igb igc igg igh igi igk ign igo igs iha ihb ihc ihg ihh ihi ihk ihn iho ihs iia iib iic iih iii iin iio iis ika ikb ikc iki ikk iko iks in- ina inb inc ing inh ini ink inn ino ins io- ioa iob ioc iog ioh ioi ion ioo ios is- isa isb isc isg ish isi isk isn iso iss ka- kaa kab kac kag kah kai kak kan kao kas kba kbb kbc kbh kbi kbk kbn kbo kbs kca kcb kcc kcg kch kci kck kcn kcs kga kgb kgc kgh kgi kgo kgs kha khh khi khk khn kho khs kia kib kic kig kih kii kik kin kio kis kkb kkc kkh kki kkk kkn kks kn- kna knc kng kni knk knn kno koa kob koc kog koh koi kok kon koo kos ksa ksb ksc ksg ksh ksi ksk ksn kso kss n-i naa nab nac nag nah nai nak nan nao nas nba nbb nbc nbg nbi nbk nbn nbo nbs nca ncb ncc ncg nch nci nck ncn nco ncs nga ngb ngc ngg ngh ngi ngk ngn ngo ngs nha nhb nhc nhg nhh nhi nhk nhn nhs nia nib nic nig nih nii nik nin nio nis nka nkc nki nkk nkn nko nks nna nnb nnc nng nnh nni nnk nnn nno nns no- noa nob noc nog noh noi nok non noo nos nsa nsb nsc nsg nsh nsi nsk nsn nso nss o-i oaa oab oac oag oah oai oak oan oao oas ob- oba obb obc obg obh obi obk obn obo obs oc- oca ocb occ ocg och oci ock ocn oco ocs oga ogc ogg ogh ogi ogn ogo ogs oha ohc ohg ohh ohi ohn oho ohs oia oib oic oii oik oin oio ois oka okb okc okg oki okk oko oks on- ona onb onc ong onh oni onk onn ono ons oo- ooa oob ooc oog ooh ooi ook oon ooo oos os- osa osb osc osg osh osi osk osn oso oss saa sab sac sag sah sai sak san sao sas sba sbb sbc sbg sbh sbi sbk sbn sbo sbs sca scb scc scg sch sci sck scn sco scs sga sgb sgc sgg sgh sgi sgk sgn sgo sgs sh- sha shb shc shg shh shi shk shn sho shs sia sib sic sig sih sii sik sin sio sis sk- ska skb skc skg skh ski skk sko sks sna snb snc sng sni snk snn sno sns soa sob soc sog soh soi sok son soo sos ss- ssa ssb ssc ssg ssh ssi ssk ssn sso sss