-ic a-a a-b a-c a-i aaa aab aac aad aai aak aan aau ab- aba abb abc abd abi abk abn abu ac- aca acb acc acd aci ack acn acu ad- ada adb adc add adi adk adn adu ai- aia aib aic aid aii aik ain aiu aka akb akc akd aki akk akn aku an- ana anb anc and ani ank ann anu au- aua aub auc aud aui auk aun b-u baa bab bac bad bai bak ban bau bba bbb bbc bbd bbi bbk bbn bbu bca bcb bcc bcd bci bck bcn bcu bda bdb bdc bdd bdi bdk bdu bi- bia bib bic bid bii bik bin biu bka bkb bkc bkk bkn bna bnb bnc bnd bni bnk bnn bnu bua bub buc bud bui buk bun buu c-- caa cab cac cad cai cak can cau cba cbb cbc cbd cbi cbk cbn cbu cca ccb ccc ccd cci cck ccn ccu cda cdb cdc cdd cdi cdk cdn cdu ci- cia cib cic cid cii cik cin ciu cka ckb ckc ckd cki cn- cna cnb cnc cnd cni cnn cnu cua cub cuc cud cui cuk cun cuu daa dab dac dad dai dak dan dau dba dbb dbc dbd dbi dbk dbn dbu dca dcb dcc dcd dci dck dcn dcu dda ddb ddc ddd ddi ddk ddn ddu di- dia dib dic did dii dik din diu dka dkb dkc dki dkk dku dna dnb dnc dnd dni dnk dnn dua dub duc dud dui duk dun i-d ia- iaa iab iac iad iai ian iau iba ibb ibc ibd ibi ibk ibn ibu ica icb icc icd ici ick icn icu ida idb idc idd idi idk idn idu iia iib iic iid iii iin iiu ika ikb ikc iki ikk iku in- ina inb inc ind ini ink inn inu iu- iua iub iuc iud iui ka- kaa kab kac kad kai kak kan kau kba kbb kbc kbd kbi kbk kbn kbu kca kcb kcc kcd kci kck kcn kcu kda kdb kdc kdk kdu kia kib kic kid kii kik kin kiu kkb kkc kki kkk kkn kku kn- kna knc knd kni knk knn knu kub kuc kud kui kuk kun kuu n-i naa nab nac nad nai nak nan nau nba nbb nbc nbd nbi nbk nbn nbu nca ncb ncc ncd nci nck ncn ncu nda ndb ndc ndd ndi ndk ndn ndu nia nib nic nid nii nik nin niu nka nkc nki nkk nkn nku nna nnb nnc nni nnk nnn nnu nua nub nuc nud nui nuk nun nuu ua- uaa uab uac uad uai uak uan uau uba ubb ubc ubi ubk ubn ubu uca ucb ucc ucd uci uck ucn ucu uda udb udc udd udi udk udn udu uia uib uic uid uii uin uiu uka ukb ukc uki ukk ukn uku un- una unb unc und uni unk unn unu uua uuc uun uuu