a-a a-b a-c aaa aab aac aad aaf aag aah aak aan aao ab- aba abb abc abd abf abg abh abk abn abo ac- aca acb acc acd acf acg ach ack acn aco ad- ada adb adc add adf adg adh adk adn ado af- afa afb afc afd aff afg afh afk afn afo ag- aga agb agc agd agf agg agh agk agn ago aha ahb ahc ahd ahf ahg ahh ahk ahn aho aka akb akc akd akg akh akk akn ako an- ana anb anc and anf ang anh ank ann ano aoa aob aoc aod aof aog aoh aok aon aoo baa bab bac bad baf bag bah bak ban bao bba bbb bbc bbd bbf bbg bbh bbk bbn bbo bca bcb bcc bcd bcf bcg bch bck bcn bco bda bdb bdc bdd bdf bdg bdh bdk bdo bfa bfb bfc bfd bff bfg bfh bfn bfo bga bgb bgc bgd bgf bgg bgh bgk bgn bgo bha bhb bhc bhd bhf bhg bhh bhk bho bka bkb bkc bkf bkg bkk bkn bko bna bnb bnc bnd bnf bng bnk bnn bno boa bob boc bod bof bog boh bok bon boo c-- caa cab cac cad caf cag cah cak can cao cba cbb cbc cbd cbf cbg cbh cbk cbn cbo cca ccb ccc ccd ccf ccg cch cck ccn cco cda cdb cdc cdd cdf cdg cdh cdk cdn cdo cfa cfb cfc cfd cff cfg cfh cfk cfn cfo cga cgb cgc cgd cgg cgh cgn cgo ch- cha chb chc chd chf chg chh chk chn cho cka ckb ckc ckd ckh cko cn- cna cnb cnc cnd cnf cng cnh cnn cno co- coa cob coc cod cof cog coh cok con coo daa dab dac dad daf dag dah dak dan dao dba dbb dbc dbd dbf dbg dbh dbk dbn dbo dca dcb dcc dcd dcf dcg dck dcn dco dda ddb ddc ddd ddf ddg ddh ddk ddn ddo dfa dfb dfc dfd dff dfg dfh dfk dfn dfo dga dgc dgd dgf dgg dgh dgk dgn dh- dha dhb dhc dhd dhf dhh dhk dho dka dkb dkc dkg dkk dko dna dnb dnc dnd dnf dng dnh dnk dnn dno doa dob doc dod dof dog doh dok don doo faa fab fac fad faf fag fah fak fan fao fba fbb fbc fbd fbf fbg fbh fbk fbn fbo fca fcb fcc fcd fcf fcg fck fcn fco fda fdb fdc fdd fdf fdg fdh fdk fdn fdo ffa ffc ffd fff ffg ffh ffk ffn ffo fga fgb fgc fgd fgf fgg fgh fgn fha fhb fhc fhf fhg fhh fhn fho fka fkb fkc fkf fkg fkk fna fnb fnc fnd fnf fng fnh fnk fnn foa fob foc fof fog foh fok fon foo g-d gaa gab gac gad gaf gag gah gak gan gao gba gbc gbd gbf gbg gbh gbk gbn gbo gca gcb gcc gcd gcf gcg gch gck gcn gco gda gdb gdc gdd gdf gdh gdk gdn gdo gfa gfb gfc gfd gff gfh gfk gfo gga ggb ggc ggd ggg ggh ggn ggo gha ghb ghc ghd ghg ghh ghn gho gka gkb gkd gkh gkn gko gna gnb gnc gnd gnf gnn gno goa gob goc god gof gog goh gok gon goo haa hab hac had haf hag hah hak han hao hba hbb hbc hbd hbf hbg hbh hbk hbn hbo hca hcb hcc hcd hcf hcg hch hck hcn hco hda hdb hdc hdd hdf hdg hdh hdk hdn hdo hfa hfb hfc hfd hff hfg hfh hfk hfn hfo hga hgb hgc hgf hgg hgh hgk hgn hgo hha hhb hhc hhd hhf hhg hhh hhk hhn hho hka hkb hkd hkf hkg hkh hkk hkn hko hna hnb hnc hnd hnf hng hnh hnk hnn hno hoa hob hoc hod hof hog hoh hok hon hoo ka- kaa kab kac kad kaf kag kah kak kan kao kba kbb kbc kbd kbf kbh kbk kbn kbo kca kcb kcc kcd kcg kch kck kcn kda kdb kdc kdf kdg kdh kdk kdo kfa kfc kfd kff kfg kfh kfo kga kgb kgc kgd kgf kgh kgo kha khf khh khk khn kho kkb kkc kkh kkk kkn kn- kna knc knd knf kng knk knn kno koa kob koc kod kof kog koh kok kon koo naa nab nac nad naf nag nah nak nan nao nba nbb nbc nbd nbf nbg nbk nbn nbo nca ncb ncc ncd ncf ncg nch nck ncn nco nda ndb ndc ndd ndf ndg ndh ndk ndn ndo nfa nfb nfc nfd nff nfk nfn nfo nga ngb ngc ngd ngf ngg ngh ngk ngn ngo nha nhb nhc nhd nhf nhg nhh nhk nhn nka nkc nkf nkk nkn nko nna nnb nnc nnf nng nnh nnk nnn nno no- noa nob noc nod nof nog noh nok non noo oaa oab oac oad oaf oag oah oak oan oao ob- oba obb obc obd obf obg obh obk obn obo oc- oca ocb occ ocd ocf ocg och ock ocn oco oda odb odc odd odf odg odh odn odo of- ofa ofb ofc ofd off ofg ofn ofo oga ogc ogd ogf ogg ogh ogn ogo oha ohc ohd ohf ohg ohh ohn oho oka okb okc okd okg okk oko on- ona onb onc ond onf ong onh onk onn ono oo- ooa oob ooc ood oof oog ooh ook oon ooo

-ana a-ak a-do a-ha a-ok aaaa aaab aaac aaad aaaf aaah aaan aaba aabb aabc aabd aabh aaca aacb aacc aacd aacf aach aack aacn aaco aada aadc aafa aafb aafc aafd aaff aagh aaha aahk aaka aana aand aang aaon aaoo abaa abab abac abad abaf abag abak aban abb- abba abbb abbo abca abcb abcc abcd abcf abch abcn abda abdo abff abgd abha abho aboa abob abod