-ic a-a a-b a-c a-i aaa aab aac aaf aah aai aao aau ab- aba abb abc abf abh abi abo abu ac- aca acb acc acf ach aci aco acu af- afa afb afc aff afh afi afo afu aha ahb ahc ahf ahh ahi aho ahu ai- aia aib aic aif aih aii aio aiu aoa aob aoc aof aoh aoi aoo aou au- aua aub auc auf auh aui auo b-u baa bab bac baf bah bai bao bau bba bbb bbc bbf bbh bbi bbo bbu bca bcb bcc bcf bch bci bco bcu bfa bfb bfc bff bfh bfi bfo bfu bha bhb bhc bhf bhh bhi bho bhu bi- bia bib bic bif bih bii bio biu boa bob boc bof boh boi boo bou bua bub buc buf buh bui buo buu c-- caa cab cac caf cah cai cao cau cba cbb cbc cbf cbh cbi cbo cbu cca ccb ccc ccf cch cci cco ccu cfa cfb cfc cff cfh cfi cfo cfu ch- cha chb chc chf chh chi cho chu ci- cia cib cic cif cih cii cio ciu co- coa cob coc cof coh coi coo cou cua cub cuc cuf cuh cui cuo cuu faa fab fac faf fah fai fao fau fba fbb fbc fbf fbh fbi fbo fbu fca fcb fcc fcf fci fco fcu ffa ffc fff ffh ffi ffo ffu fha fhb fhc fhf fhh fhi fho fia fib fic fif fih fii fiu foa fob foc fof foh foi foo fou fua fub fuf fui fuo fuu h-i haa hab hac haf hah hai hao hau hba hbb hbc hbf hbh hbi hbo hbu hca hcb hcc hcf hch hci hco hfa hfb hfc hff hfh hfi hfo hfu hha hhb hhc hhf hhh hhi hho hhu hia hib hic hif hih hii hio hiu hoa hob hoc hof hoh hoi hoo hou hua hub huc huf huh hui huo huu i-f ia- iaa iab iac iaf iah iai iao iau iba ibb ibc ibf ibh ibi ibo ibu ica icb icc icf ich ici ico icu ifa ifb ifc iff ifi ifo ifu iha ihb ihc ihf ihh ihi iho ihu iia iib iic iif iih iii iio iiu io- ioa iob ioc iof ioh ioi ioo iou iu- iua iub iuc iui o-i oaa oab oac oaf oah oai oao oau ob- oba obb obc obf obh obi obo obu oc- oca ocb occ ocf och oci oco ocu of- ofa ofb ofc off ofi ofo ofu oha ohc ohf ohh ohi oho ohu oia oib oic oif oii oio oiu oo- ooa oob ooc oof ooh ooi ooo ou- oua ouc ouf ouh oui ouo ua- uaa uab uac uaf uah uai uao uau uba ubb ubc ubf ubh ubi ubo ubu uca ucb ucc ucf uch uci uco ucu ufa ufc uff ufh ufi ufo ufu uha uhb uhc uhf uhh uhi uho uhu uia uib uic uif uii uio uiu uoa uob uoc uoo uua uuc uuu

-hou a-fu a-ha a-ii aaaa aaab aaac aaaf aaah aaai aaba aabb aabc aabh aabi aaca aacb aacc aacf aach aaci aaco aacu aafa aafb aafc aaff aafi aaha aaib aaic aaii aaoo abaa abab abac abaf abai abau abb- abba abbb abbi abbo abca abcb abcc abcf abch abci abff abha abhi abho abia abib abic abiu aboa abob abof aboh aboo abou abua abuf acaa acab acac acai acba acca accc accf acch acci acco accu acfc acfi acha achh achi acho achu aci- acia acic acif acoa acoh acou acu- acuf acuo afaa afao afca afcb afcc afch afci afcu affa affc affi affo afia afib afif afoa afoo afua ahab ahac ahah ahai ahau ahfa ahha ahio ahoa ahua aiai aiba aibo aica aicc aicf aich aiff aiha aiho aiia aiib aiic aioc aioi aiui aoah aoba aoca aouf auaa auca auch auci aufc aufi ba-i baaa baaf baah baba babb babi babo babu bac- baca bacc bach baci baco bafc baff bafo baha bahi baho bahu baia baib baic baio baoh bau- bauf bbau bbbb bbch bbci bbfc bcaa bcbc bcca bccc bcci bcfc bcia bcof bcuc bfca bhai bhao bhca bhcc bhff bhoi bhuu biaf biao biba bibb bibi bibo bica bicc bich bici bico bifa biff bifi biha bihi bihu bio- bioc bioi biou boab boac boai boba bobb bobi bobo bobu boca boch boco bocu bofa boff bofh bofu boha boho bohu boi- boii boiu boob booc boof booh boua bouf bouh buba bubb bubi bubo bubu buca bucc buch buci buco bucu bufc buff bufo buha buhi buho buic buif buiu c-bo caaa caab caac caaf caah caba cabf cabi cabo cabu cac- caca cacc cach caci caco cafa cafb cafc caff cafu caha caia caib caic caio caiu caoi cauc cauf cauo cbac cbbc cbca cbcc cbcu cbfb cbfc cbha cbia ccaa ccab ccac ccaf ccai ccba ccbc ccca cccb cccc cccf ccci cccu ccfa ccfc ccff ccfi ccha ccic ccii ccob ccoc ccuc cfaa cfab cfac cfao cfbc cfca cfcb cfcf cfco cffb cfia cfoa chaa chab chac chaf chah chai chao chau chca chch chci chfa chfc chfi chha chia chib chic chif chih chiu choc choh choi choo chou chua chub chui ciaa ciao ciau ciba cibc cibi cibo cica cicc cich cici cico cicu cifa ciff ciia ciii ciob ciuc coai coba cobb cobh cobi cobo cobu coca coch coco cocu cofc coff cofi coha coho coia coif coob coof cooh coua coub cuau cub- cuba cubb cubi cuca cucc cuci cufa cufc cuff cufi cufo cui- cuif faaa faac faah faba fabi fabo fabu faca facc fach fafa fafc faff fafi fafo faha faio fcab fcba fcca fccf fcch fcic fcii ffcc ffff ffii fhci fiaa fiac fiaf fiba fica ficc fich fico fifa fifc fiff fifi fifo fiii fiua foaf foba foca foch foci foco fofo foia foof foua fubb fubu fuc- fuca fuci