-ic a-a a-b a-c a-i aaa aab aac aad aai aan aau ab- aba abb abc abd abi abn abu ac- aca acb acc acd aci acn acu ad- ada adb adc add adi adn adu ai- aia aib aic aid aii ain aiu an- ana anb anc and ani ann anu au- aua aub auc aud aui aun b-u baa bab bac bad bai ban bau bba bbb bbc bbd bbi bbn bbu bca bcb bcc bcd bci bcn bcu bda bdb bdc bdd bdi bdu bi- bia bib bic bid bii bin biu bna bnb bnc bnd bni bnn bnu bua bub buc bud bui bun buu c-- caa cab cac cad cai can cau cba cbb cbc cbd cbi cbn cbu cca ccb ccc ccd cci ccn ccu cda cdb cdc cdd cdi cdn cdu ci- cia cib cic cid cii cin ciu cn- cna cnb cnc cnd cni cnn cnu cua cub cuc cud cui cun cuu daa dab dac dad dai dan dau dba dbb dbc dbd dbi dbn dbu dca dcb dcc dcd dci dcn dcu dda ddb ddc ddd ddi ddn ddu di- dia dib dic did dii din diu dna dnb dnc dnd dni dnn dua dub duc dud dui dun i-d ia- iaa iab iac iad iai ian iau iba ibb ibc ibd ibi ibn ibu ica icb icc icd ici icn icu ida idb idc idd idi idn idu iia iib iic iid iii iin iiu in- ina inb inc ind ini inn inu iu- iua iub iuc iud iui n-i naa nab nac nad nai nan nau nba nbb nbc nbd nbi nbn nbu nca ncb ncc ncd nci ncn ncu nda ndb ndc ndd ndi ndn ndu nia nib nic nid nii nin niu nna nnb nnc nni nnn nnu nua nub nuc nud nui nun nuu ua- uaa uab uac uad uai uan uau uba ubb ubc ubi ubn ubu uca ucb ucc ucd uci ucn ucu uda udb udc udd udi udn udu uia uib uic uid uii uin uiu un- una unb unc und uni unn unu uua uuc uun uuu