a-a a-b a-c aaa aab aac aae aah aak aam aan aau ab- aba abb abc abe abh abk abm abn abu ac- aca acb acc ace ach ack acm acn acu aea aeb aec aee aeh aek aem aen aeu aha ahb ahc ahe ahh ahk ahm ahn ahu aka akb akc ake akh akk akm akn aku ama amb amc ame amh amk amm amn amu an- ana anb anc ane anh ank anm ann anu au- aua aub auc aue auh auk aum aun b-u baa bab bac bae bah bak bam ban bau bba bbb bbc bbe bbh bbk bbm bbn bbu bca bcb bcc bce bch bck bcm bcn bcu be- bea beb bec bee beh bek bem ben beu bha bhb bhc bhe bhh bhk bhm bhu bka bkb bkc bke bkk bkm bkn bma bmb bmc bme bmh bmk bmm bmn bmu bna bnb bnc bne bnk bnn bnu bua bub buc bue buh buk bum bun buu c-- caa cab cac cae cah cak cam can cau cba cbb cbc cbe cbh cbk cbm cbn cbu cca ccb ccc cce cch cck ccm ccn ccu ce- cea ceb cec cee ceh cek cem cen ceu ch- cha chb chc che chh chk chm chn chu cka ckb ckc ckh ckm cma cmb cmc cme cmh cmk cmm cmn cmu cn- cna cnb cnc cne cnh cnm cnn cnu cua cub cuc cue cuh cuk cum cun cuu eaa eab eac eae eah eak eam ean eau eba ebb ebc ebe ebh ebk ebm ebn ebu ec- eca ecb ecc ece ech eck ecm ecn ecu eea eeb eec eee eek eem een eha ehb ehc ehe ehh ehm ehn ehu eka ekb ekc eke ekh eku em- ema emb emc eme emh emk emm emn emu en- ena enb enc ene enh enk enm enn enu eu- eua eub euc eue eun haa hab hac hae hah hak ham han hau hba hbb hbc hbe hbh hbk hbm hbn hbu hca hcb hcc hce hch hck hcm hcn he- hea heb hec hee heh hek hem hen heu hha hhb hhc hhe hhh hhk hhm hhn hhu hka hkb hkh hkk hkm hkn hku hma hmb hmc hme hmh hmk hmm hmu hna hnb hnc hne hnh hnk hnn hnu hua hub huc hue huh huk hum hun huu ka- kaa kab kac kae kah kak kam kan kau kba kbb kbc kbe kbh kbk kbm kbn kbu kca kcb kcc kce kch kck kcm kcn kcu ke- kea keb kec kee keh kek kem ken kha khe khh khk khm khn khu kkb kkc kke kkh kkk kkm kkn kku kma kmb kmc kme kmh kmk kmm kmu kn- kna knc kne knk knm knn knu kub kuc kue kuh kuk kum kun kuu maa mab mac mae mah mak mam man mau mba mbb mbc mbe mbh mbk mbm mbu mc- mca mcb mcc mce mch mck mcm mcn mcu mea meb mec mee meh mek mem men meu mha mhc mhh mhk mhm mhn mhu mka mkb mkc mke mkh mkk mkm mkn mku mma mmb mmc mme mmh mmk mmm mmn mmu mna mnb mnc mne mnk mnm mnn mnu mua mub muc mue muh muk mum mun muu naa nab nac nae nah nak nam nan nau nba nbb nbc nbe nbk nbm nbn nbu nca ncb ncc nce nch nck ncm ncn ncu ne- nea neb nec nee neh nek nem nen neu nha nhb nhc nhe nhh nhk nhm nhn nhu nka nkc nke nkk nkm nkn nku nma nmb nmc nme nmh nmk nmm nmn nmu nna nnb nnc nne nnh nnk nnm nnn nnu nua nub nuc nue nuh nuk num nun nuu ua- uaa uab uac uae uah uak uam uan uau uba ubb ubc ube ubh ubk ubn ubu uca ucb ucc uce uch uck ucm ucn ucu uea ueb uec uee ueh uem uen uha uhb uhc uhe uhh uhm uhu uka ukb ukc uke ukk ukn uku um- uma umb umc ume umh umm umn umu un- una unb unc une unh unk unm unn unu uua uuc uue uum uun uuu