a-a a-c a-t aaa aac aae aam aan aao aap aat ac- aca acc ace acm acn aco acp act aea aec aee aem aen aeo aep aet ama amc ame amm amn amo amp amt an- ana anc ane anm ann ano anp ant aoa aoc aoe aom aon aoo aop aot ap- apa apc ape apm apn apo app apt at- ata atc ate atm atn ato atp att c-- caa cac cae cam can cao cap cat cca ccc cce ccm ccn cco ccp cct ce- cea cec cee cem cen ceo cep cet cma cmc cme cmm cmn cmo cmp cmt cn- cna cnc cne cnm cnn cno cnp cnt co- coa coc coe com con coo cop cot cpa cpc cpe cpm cpn cpo cpp cpt cta ctc cte ctm ctn cto ctp ctt eaa eac eae eam ean eao eap eat ec- eca ecc ece ecm ecn eco ect eea eec eee eem een eeo eep eet em- ema emc eme emm emn emo emp emt en- ena enc ene enm enn eno enp ent eo- eoa eoc eoe eom eon eoo eop eot ep- epa epc epe epm epn epo epp ept eta etc ete etm etn eto etp ett m-o maa mac mae mam man mao map mat mc- mca mcc mce mcm mcn mco mcp mct mea mec mee mem men meo mep met mma mmc mme mmm mmn mmo mmp mmt mna mnc mne mnm mnn mno mnp mnt moa moc moe mom mon moo mop mot mpa mpc mpe mpm mpn mpo mpp mpt mta mtc mte mtm mtn mto mtp mtt naa nac nae nam nan nao nap nat nca ncc nce ncm ncn nco ncp nct ne- nea nec nee nem nen neo nep net nma nmc nme nmm nmn nmo nmp nmt nna nnc nne nnm nnn nno nnp nnt no- noa noc noe nom non noo nop not npa npc npe npm npn npo npp npt nta ntc nte ntm ntn nto ntp ntt oaa oac oae oam oan oao oap oat oc- oca occ ocm ocn oco ocp oct oea oec oee oem oen oeo oep oet om- oma omc ome omm omn omo omp omt on- ona onc one onn ono onp ont oo- ooa ooc oom oon ooo oop oot op- opa opc ope opm opn opo opp opt ot- ota otc ote otm otn oto otp ott p-p paa pac pae pam pan pao pap pat pca pcc pce pcm pcn pco pcp pct pea pec pee pem pen peo pep pet pma pmc pme pmm pmn pmo pmp pmt pn- pna pnc pne pnm pnn pno pnp pnt poa poc poe pom pon poo pop pot ppa ppc ppe ppm ppn ppo ppp ppt pt- pta ptc pte ptm ptn pto ptp ptt taa tac tae tam tan tao tap tat tca tcc tce tcm tcn tco tcp tct te- tea tec tee tem ten teo tep tet tma tmc tme tmm tmn tmo tmp tmt tna tnc tne tnm tnn tno tnp tnt to- toa toc toe tom ton too top tot tpa tpc tpe tpm tpn tpo tpp tpt tta ttc tte ttm ttn tto ttp ttt