a-a a-b a-t a-z aaa aab aae aam aan aap aat aaz ab- aba abb abe abm abn abp abt abz aea aeb aee aem aen aep aet aez ama amb ame amm amn amp amt amz an- ana anb ane anm ann anp ant anz ap- apa apb ape apm apn app apt at- ata atb ate atm atn atp att atz az- aza azb aze azm azn azp azt azz b-p baa bab bae bam ban bap bat baz bba bbb bbe bbm bbn bbp bbt be- bea beb bee bem ben bep bet bez bma bmb bme bmm bmn bmp bmt bmz bna bnb bne bnn bnp bnt bnz bpa bpb bpe bpm bpn bpp bpt bta btb bte btm btn btp btt btz bza bze bzn bzp bzz eaa eab eae eam ean eap eat eaz eba ebb ebe ebm ebn ebp ebt eea eeb eee eem een eep eet em- ema emb eme emm emn emp emt en- ena enb ene enm enn enp ent enz ep- epa epb epe epm epn epp ept epz eta etb ete etm etn etp ett etz eze ezz maa mab mae mam man map mat maz mba mbb mbe mbm mbp mbt mea meb mee mem men mep met mez mma mmb mme mmm mmn mmp mmt mmz mna mnb mne mnm mnn mnp mnt mnz mpa mpb mpe mpm mpn mpp mpt mta mtb mte mtm mtn mtp mtt mza mzb mzm mzn mzp mzt naa nab nae nam nan nap nat naz nba nbb nbe nbm nbn nbp nbt ne- nea neb nee nem nen nep net nez nma nmb nme nmm nmn nmp nmt nmz nna nnb nne nnm nnn nnp nnt nnz npa npb npe npm npn npp npt npz nta ntb nte ntm ntn ntp ntt ntz nzb nze nzp nzz p-p paa pab pae pam pan pap pat paz pba pbb pbe pbm pbn pbp pbt pbz pea peb pee pem pen pep pet pez pma pmb pme pmm pmn pmp pmt pmz pn- pna pnb pne pnm pnn pnp pnt ppa ppb ppe ppm ppn ppp ppt ppz pt- pta ptb pte ptm ptn ptp ptt ptz pzm pzp pzt taa tab tae tam tan tap tat taz tba tbb tbe tbm tbn tbp tbt tbz te- tea teb tee tem ten tep tet tez tma tmb tme tmm tmn tmp tmt tmz tna tnb tne tnm tnn tnp tnt tnz tpa tpb tpe tpm tpn tpp tpt tpz tta ttb tte ttm ttn ttp ttt tza tze zaa zab zam zan zap zat zaz zbb zbm zbt zea zeb zee zem zen zep zet zez zma zmb zmm zmp zmt zne znn znp zpe zpm zpp zpt zta zte ztm zzt zzz