a-a a-c aaa aac aaf aag aak aan aao aap ac- aca acc acf acg ack acn aco acp af- afa afc aff afg afk afn afo afp ag- aga agc agf agg agk agn ago agp aka akc akg akk akn ako akp an- ana anc anf ang ank ann ano anp aoa aoc aof aog aok aon aoo aop ap- apa apc apf apg apk apn apo app c-- caa cac caf cag cak can cao cap cca ccc ccf ccg cck ccn cco ccp cfa cfc cff cfg cfk cfn cfo cfp cga cgc cgg cgn cgo cgp cka ckc cko cn- cna cnc cnf cng cnn cno cnp co- coa coc cof cog cok con coo cop cpa cpc cpf cpg cpk cpn cpo cpp faa fac faf fag fak fan fao fap fca fcc fcf fcg fck fcn fco fcp ffa ffc fff ffg ffk ffn ffo ffp fga fgc fgf fgg fgn fgp fka fkc fkf fkg fkk fkp fna fnc fnf fng fnk fnn fnp foa foc fof fog fok fon foo fop fpa fpc fpg fpk fpn fpo fpp g-p gaa gac gaf gag gak gan gao gap gca gcc gcf gcg gck gcn gco gcp gfa gfc gff gfk gfo gfp gga ggc ggg ggn ggo ggp gka gkn gko gkp gna gnc gnf gnn gno gnp goa goc gof gog gok gon goo gop gpa gpc gpf gpg gpk gpn gpo gpp ka- kaa kac kaf kag kak kan kao kap kca kcc kcg kck kcn kcp kfa kfc kff kfg kfo kga kgc kgf kgo kgp kkc kkk kkn kkp kn- kna knc knf kng knk knn kno knp koa koc kof kog kok kon koo kop kpa kpc kpf kpk kpn kpo kpp naa nac naf nag nak nan nao nap nca ncc ncf ncg nck ncn nco ncp nfa nfc nff nfk nfn nfo nfp nga ngc ngf ngg ngk ngn ngo ngp nka nkc nkf nkk nkn nko nkp nna nnc nnf nng nnk nnn nno nnp no- noa noc nof nog nok non noo nop npa npc npf npg npn npo npp oaa oac oaf oag oak oan oao oap oc- oca occ ocf ocg ock ocn oco ocp of- ofa ofc off ofg ofn ofo ofp oga ogc ogf ogg ogn ogo ogp oka okc okg okk oko okp on- ona onc onf ong onk onn ono onp oo- ooa ooc oof oog ook oon ooo oop op- opa opc opf opg opk opn opo opp p-p paa pac paf pag pak pan pao pap pca pcc pcf pcg pck pcn pco pcp pfa pfc pff pfg pfk pfn pfo pfp pga pgc pgf pgg pgk pgn pgo pgp pka pkc pkf pkg pkn pko pkp pn- pna pnc pnf png pnk pnn pno pnp poa poc pof pog pok pon poo pop ppa ppc ppf ppg ppk ppn ppo ppp