-ic a-a a-b a-c a-i aaa aab aac aah aai aak aao ab- aba abb abc abh abi abk abo ac- aca acb acc ach aci ack aco aha ahb ahc ahh ahi ahk aho ai- aia aib aic aih aii aik aio aka akb akc akh aki akk ako aoa aob aoc aoh aoi aok aoo baa bab bac bah bai bak bao bba bbb bbc bbh bbi bbk bbo bca bcb bcc bch bci bck bco bha bhb bhc bhh bhi bhk bho bi- bia bib bic bih bii bik bio bka bkb bkc bkk bko boa bob boc boh boi bok boo c-- caa cab cac cah cai cak cao cba cbb cbc cbh cbi cbk cbo cca ccb ccc cch cci cck cco ch- cha chb chc chh chi chk cho ci- cia cib cic cih cii cik cio cka ckb ckc ckh cki cko co- coa cob coc coh coi cok coo h-i haa hab hac hah hai hak hao hba hbb hbc hbh hbi hbk hbo hca hcb hcc hch hci hck hco hha hhb hhc hhh hhi hhk hho hia hib hic hih hii hik hio hka hkb hkh hki hkk hko hoa hob hoc hoh hoi hok hoo ia- iaa iab iac iah iai iao iba ibb ibc ibh ibi ibk ibo ica icb icc ich ici ick ico iha ihb ihc ihh ihi ihk iho iia iib iic iih iii iio ika ikb ikc iki ikk iko io- ioa iob ioc ioh ioi ioo ka- kaa kab kac kah kai kak kao kba kbb kbc kbh kbi kbk kbo kca kcb kcc kch kci kck kha khh khi khk kho kia kib kic kih kii kik kio kkb kkc kkh kki kkk koa kob koc koh koi kok koo o-i oaa oab oac oah oai oak oao ob- oba obb obc obh obi obk obo oc- oca ocb occ och oci ock oco oha ohc ohh ohi oho oia oib oic oii oik oio oka okb okc oki okk oko oo- ooa oob ooc ooh ooi ook ooo

a-ak a-ha a-ii a-ok aaaa aaab aaac aaah aaai aaba aabb aabc aabh aabi aaca aacb aacc aach aaci aack aaco aaha aahk aaib aaic aaii aaka aaoo abaa abab abac abai abak abb- abba abbb abbi abbo abca abcb abcc abch abci abha abhi abho abia abib abic aboa abob aboh abok aboo acaa acab acac acai acba acca accc acch acci acco acha achh achi acho aci- acia acic acoa acoh ahab ahac ahah ahai ahha ahio ahoa ahok aiai aiba aibo aica aicc aich aiha aiho aiia aiib aiic aika aiki aiko aioc aioi akaa akah akai akao akca akha akia akik akio akka akki akko akok aoah aoba aoca aoki ba-i baaa baah baak baba babb babi babo bac- baca bacc bach baci back baco baha bahi baho baia baib baic baik baio bak- baka bakh baki bako baoh bbbb bbch bbci bcaa bcbc bcca bccc bcci bcia bhai bhao bhca bhcc bhoi biak biao biba bibb bibi bibo bica bicc bich bici bick bico biha bihi bikh biko bio- bioc bioi boab boac boai boak boba bobb bobi bobo boca boch bock boco boha boho boi- boii boka boki boko boob booc booh book c-bo caaa caab caac caah caba cabi cabo cac- caca cacc cach caci cack caco caha caia caib caic caik caio caka caoi cbac cbbc cbca cbcc cbha cbia cbka cbko ccaa ccab ccac ccai ccba ccbc ccca cccb cccc ccci ccha ccic ccii ccob ccoc chaa chab chac chah chai chak chao chca chch chci chha chia chib chic chih chik chka chkb choc choh choi chok choo ciaa ciak ciao ciba cibc cibi cibo cica cicc cich cici cico ciia ciii cika ciko ciob ckac ckbc ckbi ckch ckck ckco ckoa ckob ckoc ckoi ckoo coai coak coba cobb cobh cobi cobo coca coch cock coco coha coho coia cok- coka coko coob cooh cook h-ii haab haak haba habi habo hack haco haha haho haik haka haki hakk hako hbic hbio hboc hcbc hcca hccb hccc hcch hchi hhaa hhhh hi-c hiaa hiab hiba hibi hicc hich hick hico hihc hihi hiho hiki hiob hioc hkcc hoac hoai hoba hobo hoca hoch hock hoha hoho hoik hoka hoki hoko hook iaaa iaac iaai iaba iaca iacc iahc iaia ibac ibca ibia icaa icab icac icai icao icbc icca iccb iccc icci icco ichc ichi icho icoc ihab ihba ihcc ihob iiac iica iiii iiio iioi iioo ikki ikko ikoo ioba iobi ioci ioii ioio ioko iooi iooo k-ci kaaa kaab kaai kaak kaba kabb kabc kabi kabo kacb kacc kach kaci kaco kaha kahc kahi kaho kaia kaib kaic kaii kaik kaio kaka kakc kakh kaki kakk kako kaoa kaoc kaoi kaok kbaa kbab kbac kbai kbak kbba kbbb kbbc kbbi kbbk kbbo kbca kbcb kbch kbci kbck kbco kbhb kbhc kbhh kbhi kbia kbib kbic kbik kbio kbkb kbkk kbko kboa kbob kboc kboi kbok kboo kcaa kcab kcac kcah kcai kcba kcbc kcbi kcbk kcca kccb kccc kcci kcck kcha kchh kchi kchk kcho kcic kcii kckc kckk kcko kcob kcoh khab khac khai khak khao khbc khca khcb khcc khch khck khhk khho khia khic khii khio khka khki khkk khoa khob khoc khoi khok kiab kiac kiah kiai kiba kibb kibc kibi kibo kica kicb kicc kick kiha kihc kihh kihi kihk kiho kiia kiic kiii kiik kika kikc kiki kikk kiko kioa kioc kioh kioi kiok kioo kkaa kkac kkai kkba kkbb kkbi kkbo kkcb kkch kkci kkck kkco kkha kkhb kkhh kkhi kkhk kkia kkic kkik kkkk kkoa kkob kkoh kkoo koab koac koai koak koba kobb kobc kobi kobk kobo koca kocb koch koci kock koha kohh kohi koho koii koka kokb kokc kokh koki kokk koko koob kooc kooi kook kooo oaic obai obak obba obbo obia obkb oboi obok ocab ocac ocak ocbc occa occc occi ocha ochi ohai ohba ohcc ohhi