a-a a-c aaa aac aae aag aam aan aao aap ac- aca acc ace acg acm acn aco acp aea aec aee aeg aem aen aeo aep ag- aga agc age agg agm agn ago agp ama amc ame amg amm amn amo amp an- ana anc ane ang anm ann ano anp aoa aoc aoe aog aom aon aoo aop ap- apa apc ape apg apm apn apo app c-- caa cac cae cag cam can cao cap cca ccc cce ccg ccm ccn cco ccp ce- cea cec cee ceg cem cen ceo cep cga cgc cge cgg cgm cgn cgo cgp cma cmc cme cmg cmm cmn cmo cmp cn- cna cnc cne cng cnm cnn cno cnp co- coa coc coe cog com con coo cop cpa cpc cpe cpg cpm cpn cpo cpp eaa eac eae eag eam ean eao eap ec- eca ecc ece ecg ecm ecn eco eea eec eee eeg eem een eeo eep ega egc ege egg egm egn ego egp em- ema emc eme emg emm emn emo emp en- ena enc ene eng enm enn eno enp eo- eoa eoc eoe eog eom eon eoo eop ep- epa epc epe epg epm epn epo epp g-p gaa gac gae gag gam gan gao gap gca gcc gce gcg gcm gcn gco gcp ge- gea gec gee geg gem gen geo gep gga ggc ggg ggm ggn ggo ggp gma gmc gme gmg gmm gmn gmo gmp gna gnc gne gnm gnn gno gnp goa goc goe gog gom gon goo gop gpa gpc gpe gpg gpm gpn gpo gpp m-o maa mac mae mag mam man mao map mc- mca mcc mce mcg mcm mcn mco mcp mea mec mee meg mem men meo mep mga mgc mge mgm mgn mgo mgp mma mmc mme mmg mmm mmn mmo mmp mna mnc mne mng mnm mnn mno mnp moa moc moe mog mom mon moo mop mpa mpc mpe mpg mpm mpn mpo mpp naa nac nae nag nam nan nao nap nca ncc nce ncg ncm ncn nco ncp ne- nea nec nee neg nem nen neo nep nga ngc nge ngg ngm ngn ngo ngp nma nmc nme nmg nmm nmn nmo nmp nna nnc nne nng nnm nnn nno nnp no- noa noc noe nog nom non noo nop npa npc npe npg npm npn npo npp oaa oac oae oag oam oan oao oap oc- oca occ ocg ocm ocn oco ocp oea oec oee oeg oem oen oeo oep oga ogc oge ogg ogn ogo ogp om- oma omc ome omg omm omn omo omp on- ona onc one ong onn ono onp oo- ooa ooc oog oom oon ooo oop op- opa opc ope opg opm opn opo opp p-p paa pac pae pag pam pan pao pap pca pcc pce pcg pcm pcn pco pcp pea pec pee peg pem pen peo pep pga pgc pge pgg pgm pgn pgo pgp pma pmc pme pmg pmm pmn pmo pmp pn- pna pnc pne png pnm pnn pno pnp poa poc poe pog pom pon poo pop ppa ppc ppe ppg ppm ppn ppo ppp