-ic a-a a-b a-c a-i aaa aab aac aad aae aai aan aau ab- aba abb abc abd abe abi abn abu ac- aca acb acc acd ace aci acn acu ad- ada adb adc add ade adi adn adu aea aeb aec aed aee aei aen aeu ai- aia aib aic aid aie aii ain aiu an- ana anb anc and ane ani ann anu au- aua aub auc aud aue aui aun b-u baa bab bac bad bae bai ban bau bba bbb bbc bbd bbe bbi bbn bbu bca bcb bcc bcd bce bci bcn bcu bda bdb bdc bdd bde bdi bdu be- bea beb bec bed bee bei ben beu bi- bia bib bic bid bie bii bin biu bna bnb bnc bnd bne bni bnn bnu bua bub buc bud bue bui bun buu c-- caa cab cac cad cae cai can cau cba cbb cbc cbd cbe cbi cbn cbu cca ccb ccc ccd cce cci ccn ccu cda cdb cdc cdd cde cdi cdn cdu ce- cea ceb cec ced cee cei cen ceu ci- cia cib cic cid cie cii cin ciu cn- cna cnb cnc cnd cne cni cnn cnu cua cub cuc cud cue cui cun cuu daa dab dac dad dae dai dan dau dba dbb dbc dbd dbe dbi dbn dbu dca dcb dcc dcd dce dci dcn dcu dda ddb ddc ddd dde ddi ddn ddu de- dea deb dec ded dee dei den deu di- dia dib dic did die dii din diu dna dnb dnc dnd dne dni dnn dua dub duc dud due dui dun eaa eab eac ead eae eai ean eau eba ebb ebc ebd ebe ebi ebn ebu ec- eca ecb ecc ecd ece eci ecn ecu ed- eda edb edc edd ede edi edn edu eea eeb eec eed eee een eia eib eic eid eie eii ein eiu en- ena enb enc end ene eni enn enu eu- eua eub euc eud eue eui eun i-d ia- iaa iab iac iad iae iai ian iau iba ibb ibc ibd ibe ibi ibn ibu ica icb icc icd ice ici icn icu ida idb idc idd ide idi idn idu ie- iea iec ied iee iei ien iia iib iic iid iie iii iin iiu in- ina inb inc ind ine ini inn inu iu- iua iub iuc iud iue iui n-i naa nab nac nad nae nai nan nau nba nbb nbc nbd nbe nbi nbn nbu nca ncb ncc ncd nce nci ncn ncu nda ndb ndc ndd nde ndi ndn ndu ne- nea neb nec ned nee nei nen neu nia nib nic nid nie nii nin niu nna nnb nnc nne nni nnn nnu nua nub nuc nud nue nui nun nuu ua- uaa uab uac uad uae uai uan uau uba ubb ubc ube ubi ubn ubu uca ucb ucc ucd uce uci ucn ucu uda udb udc udd ude udi udn udu uea ueb uec ued uee uei uen uia uib uic uid uie uii uin uiu un- una unb unc und une uni unn unu uua uuc uue uun uuu