a-a a-b a-c a-t aaa aab aac aae aak aam aan aao aat aau ab- aba abb abc abe abk abm abn abo abt abu ac- aca acb acc ace ack acm acn aco act acu aea aeb aec aee aek aem aen aeo aet aeu aka akb akc ake akk akm akn ako aku ama amb amc ame amk amm amn amo amt amu an- ana anb anc ane ank anm ann ano ant anu aoa aob aoc aoe aok aom aon aoo aot aou at- ata atb atc ate atm atn ato att atu au- aua aub auc aue auk aum aun auo aut b-u baa bab bac bae bak bam ban bao bat bau bba bbb bbc bbe bbk bbm bbn bbo bbt bbu bca bcb bcc bce bck bcm bcn bco bct bcu be- bea beb bec bee bek bem ben beo bet beu bka bkb bkc bke bkk bkm bkn bko bkt bma bmb bmc bme bmk bmm bmn bmo bmt bmu bna bnb bnc bne bnk bnn bno bnt bnu boa bob boc boe bok bom bon boo bot bou bta btb btc bte btk btm btn bto btt btu bua bub buc bue buk bum bun buo but buu c-- caa cab cac cae cak cam can cao cat cau cba cbb cbc cbe cbk cbm cbn cbo cbt cbu cca ccb ccc cce cck ccm ccn cco cct ccu ce- cea ceb cec cee cek cem cen ceo cet ceu cka ckb ckc ckm cko ckt cma cmb cmc cme cmk cmm cmn cmo cmt cmu cn- cna cnb cnc cne cnm cnn cno cnt cnu co- coa cob coc coe cok com con coo cot cou cta ctb ctc cte ctk ctm ctn cto ctt ctu cua cub cuc cue cuk cum cun cuo cut cuu eaa eab eac eae eak eam ean eao eat eau eba ebb ebc ebe ebk ebm ebn ebo ebt ebu ec- eca ecb ecc ece eck ecm ecn eco ect ecu eea eeb eec eee eek eem een eeo eet eka ekb ekc eke eko ekt eku em- ema emb emc eme emk emm emn emo emt emu en- ena enb enc ene enk enm enn eno ent enu eo- eoa eob eoc eoe eok eom eon eoo eot eou eta etb etc ete etk etm etn eto ett etu eu- eua eub euc eue eun eut k-t ka- kaa kab kac kae kak kam kan kao kat kau kba kbb kbc kbe kbk kbm kbn kbo kbu kca kcb kcc kce kck kcm kcn kct kcu ke- kea keb kec kee kek kem ken keo ket kkb kkc kke kkk kkm kkn kkt kku kma kmb kmc kme kmk kmm kmo kmt kmu kn- kna knc kne knk knm knn kno knt knu koa kob koc koe kok kom kon koo kot kou kta ktb ktc kte ktk ktm ktn kto ktt ktu kub kuc kue kuk kum kun kut kuu m-o maa mab mac mae mak mam man mao mat mau mba mbb mbc mbe mbk mbm mbo mbt mbu mc- mca mcb mcc mce mck mcm mcn mco mct mcu mea meb mec mee mek mem men meo met meu mka mkb mkc mke mkk mkm mkn mko mkt mku mma mmb mmc mme mmk mmm mmn mmo mmt mmu mna mnb mnc mne mnk mnm mnn mno mnt mnu moa mob moc moe mok mom mon moo mot mou mta mtb mtc mte mtk mtm mtn mto mtt mtu mua mub muc mue muk mum mun mut muu naa nab nac nae nak nam nan nao nat nau nba nbb nbc nbe nbk nbm nbn nbo nbt nbu nca ncb ncc nce nck ncm ncn nco nct ncu ne- nea neb nec nee nek nem nen neo net neu nka nkc nke nkk nkm nkn nko nkt nku nma nmb nmc nme nmk nmm nmn nmo nmt nmu nna nnb nnc nne nnk nnm nnn nno nnt nnu no- noa nob noc noe nok nom non noo not nou nta ntb ntc nte ntk ntm ntn nto ntt ntu nua nub nuc nue nuk num nun nuo nut nuu oaa oab oac oae oak oam oan oao oat oau ob- oba obb obc obe obk obm obn obo obt obu oc- oca ocb occ ock ocm ocn oco oct ocu oea oeb oec oee oem oen oeo oet oka okb okc oke okk oko oku om- oma omb omc ome omm omn omo omt omu on- ona onb onc one onk onn ono ont onu oo- ooa oob ooc ook oom oon ooo oot ot- ota otb otc ote otk otm otn oto ott otu ou- oua ouc oue ouk oum oun ouo out taa tab tac tae tak tam tan tao tat tau tba tbb tbc tbe tbk tbm tbn tbo tbt tbu tca tcb tcc tce tck tcm tcn tco tct tcu te- tea teb tec tee tek tem ten teo tet teu tka tkb tkc tke tkk tkm tko tkt tma tmb tmc tme tmk tmm tmn tmo tmt tmu tna tnb tnc tne tnk tnm tnn tno tnt to- toa tob toc toe tok tom ton too tot tou tta ttb ttc tte ttk ttm ttn tto ttt ttu tua tub tuc tue tuk tum tun tuo tut tuu ua- uaa uab uac uae uak uam uan uao uat uau uba ubb ubc ube ubk ubn ubo ubt ubu uca ucb ucc uce uck ucm ucn uco uct ucu uea ueb uec uee uem uen uet uka ukb ukc uke ukk ukn uku um- uma umb umc ume umm umn umo umt umu un- una unb unc une unk unm unn uno unt unu uoa uob uoc uoe uok uom uon uoo uot uta utb utc ute utk utm utn uto utt utu uua uuc uue uum uun uut uuu