a-a a-b a-c a-z aaa aab aac aae aah aak aan aau aaz ab- aba abb abc abe abh abk abn abu abz ac- aca acb acc ace ach ack acn acu acz aea aeb aec aee aeh aek aen aeu aez aha ahb ahc ahe ahh ahk ahn ahu ahz aka akb akc ake akh akk akn aku an- ana anb anc ane anh ank ann anu anz au- aua aub auc aue auh auk aun auz az- aza azb aze azn azu azz b-u baa bab bac bae bah bak ban bau baz bba bbb bbc bbe bbh bbk bbn bbu bca bcb bcc bce bch bck bcn bcu bcz be- bea beb bec bee beh bek ben beu bez bha bhb bhc bhe bhh bhk bhu bka bkb bkc bke bkk bkn bna bnb bnc bne bnk bnn bnu bnz bua bub buc bue buh buk bun buu buz bza bze bzh bzn bzu bzz c-- caa cab cac cae cah cak can cau caz cba cbb cbc cbe cbh cbk cbn cbu cbz cca ccb ccc cce cch cck ccn ccu ccz ce- cea ceb cec cee ceh cek cen ceu cez ch- cha chb chc che chh chk chn chu chz cka ckb ckc ckh cn- cna cnb cnc cne cnh cnn cnu cua cub cuc cue cuh cuk cun cuu cuz cz- czc cze czk eaa eab eac eae eah eak ean eau eaz eba ebb ebc ebe ebh ebk ebn ebu ec- eca ecb ecc ece ech eck ecn ecu eea eeb eec eee eek een eha ehb ehc ehe ehh ehn ehu eka ekb ekc eke ekh eku en- ena enb enc ene enh enk enn enu enz eu- eua eub euc eue eun eze ezh ezz haa hab hac hae hah hak han hau haz hba hbb hbc hbe hbh hbk hbn hbu hbz hca hcb hcc hce hch hck hcn he- hea heb hec hee heh hek hen heu hez hha hhb hhc hhe hhh hhk hhn hhu hhz hka hkb hkh hkk hkn hku hna hnb hnc hne hnh hnk hnn hnu hnz hua hub huc hue huh huk hun huu huz hze k-z ka- kaa kab kac kae kah kak kan kau kaz kba kbb kbc kbe kbh kbk kbn kbu kbz kca kcb kcc kce kch kck kcn kcu ke- kea keb kec kee keh kek ken kez kha khe khh khk khn khu khz kkb kkc kke kkh kkk kkn kku kn- kna knc kne knk knn knu kub kuc kue kuh kuk kun kuu naa nab nac nae nah nak nan nau naz nba nbb nbc nbe nbk nbn nbu nca ncb ncc nce nch nck ncn ncu ne- nea neb nec nee neh nek nen neu nez nha nhb nhc nhe nhh nhk nhn nhu nhz nka nkc nke nkk nkn nku nna nnb nnc nne nnh nnk nnn nnu nnz nua nub nuc nue nuh nuk nun nuu nzb nze nzz ua- uaa uab uac uae uah uak uan uau uaz uba ubb ubc ube ubh ubk ubn ubu uca ucb ucc uce uch uck ucn ucu uea ueb uec uee ueh uen uha uhb uhc uhe uhh uhu uka ukb ukc uke ukk ukn uku ukz un- una unb unc une unh unk unn unu uua uuc uue uun uuu uza uzb uzh uzu zaa zab zac zah zak zan zaz zbb zbc zce zea zeb zec zee zeh zek zen zez zha zhc zhe zhu zka znc zne znn zub zuc zuk zun zuz zzz