-ic a-a a-b a-c a-i a-z aaa aab aac aae aaf aai aan aau aaz ab- aba abb abc abe abf abi abn abu abz ac- aca acb acc ace acf aci acn acu acz aea aeb aec aee aef aei aen aeu aez af- afa afb afc afe aff afi afn afu afz ai- aia aib aic aie aif aii ain aiu aiz an- ana anb anc ane anf ani ann anu anz au- aua aub auc aue auf aui aun auz az- aza azb aze azf azi azn azu azz b-u baa bab bac bae baf bai ban bau baz bba bbb bbc bbe bbf bbi bbn bbu bca bcb bcc bce bcf bci bcn bcu bcz be- bea beb bec bee bef bei ben beu bez bfa bfb bfc bfe bff bfi bfn bfu bfz bi- bia bib bic bie bif bii bin biu biz bna bnb bnc bne bnf bni bnn bnu bnz bua bub buc bue buf bui bun buu buz bza bze bzf bzn bzu bzz c-- caa cab cac cae caf cai can cau caz cba cbb cbc cbe cbf cbi cbn cbu cbz cca ccb ccc cce ccf cci ccn ccu ccz ce- cea ceb cec cee cef cei cen ceu cez cfa cfb cfc cfe cff cfi cfn cfu cfz ci- cia cib cic cie cif cii cin ciu cn- cna cnb cnc cne cnf cni cnn cnu cua cub cuc cue cuf cui cun cuu cuz cz- czc cze eaa eab eac eae eaf eai ean eau eaz eba ebb ebc ebe ebf ebi ebn ebu ec- eca ecb ecc ece ecf eci ecn ecu eea eeb eec eee eef een ef- efa efb efc efe eff efi eia eib eic eie eif eii ein eiu en- ena enb enc ene enf eni enn enu enz eu- eua eub euc eue euf eui eun eze ezf ezz faa fab fac fae faf fai fan fau faz fba fbb fbc fbe fbf fbi fbn fbu fca fcb fcc fce fcf fci fcn fcu fcz fea feb fec fee fef fei fen feu fez ffa ffc ffe fff ffi ffn ffu ffz fia fib fic fie fif fii fin fiu fiz fna fnb fnc fne fnf fni fnn fnu fnz fua fub fue fuf fui fun fuu i-f ia- iaa iab iac iae iaf iai ian iau iaz iba ibb ibc ibe ibf ibi ibn ibu ibz ica icb icc ice icf ici icn icu icz ie- iea iec iee ief iei ien ifa ifb ifc ife iff ifi ifn ifu ifz iia iib iic iie iif iii iin iiu in- ina inb inc ine inf ini inn inu iu- iua iub iuc iue iui iuz iza ize izi izu izz n-i naa nab nac nae naf nai nan nau naz nba nbb nbc nbe nbf nbi nbn nbu nca ncb ncc nce ncf nci ncn ncu ne- nea neb nec nee nef nei nen neu nez nfa nfb nfc nfe nff nfi nfn nfu nia nib nic nie nif nii nin niu niz nna nnb nnc nne nnf nni nnn nnu nnz nua nub nuc nue nui nun nuu nzb nze nzf nzi nzz ua- uaa uab uac uae uaf uai uan uau uaz uba ubb ubc ube ubf ubi ubn ubu uca ucb ucc uce ucf uci ucn ucu uea ueb uec uee uef uei uen ufa ufc ufe uff ufi ufn ufu uia uib uic uie uif uii uin uiu un- una unb unc une unf uni unn unu uua uuc uue uun uuu uza uzb uzi uzu zaa zab zac zaf zai zan zaz zbb zbc zce zea zeb zec zee zef zen zez zfa zfc zfn zia zib zie zif zin ziz znc zne znn zub zuc zui zun zuz zzz