a-a a-c aaa aac aaf aam aan aap ac- aca acc acf acm acn acp af- afa afc aff afm afn afp ama amc amf amm amn amp an- ana anc anf anm ann anp ap- apa apc apf apm apn app c-- caa cac caf cam can cap cca ccc ccf ccm ccn ccp cfa cfc cff cfm cfn cfp cma cmc cmf cmm cmn cmp cn- cna cnc cnf cnm cnn cnp cpa cpc cpf cpm cpn cpp faa fac faf fam fan fap fca fcc fcf fcm fcn fcp ffa ffc fff ffm ffn ffp fma fmc fmf fmm fmn fmp fna fnc fnf fnm fnn fnp fpa fpc fpm fpn fpp m-f maa mac maf mam man map mc- mca mcc mcf mcm mcn mcp mfa mfc mff mfm mfn mfp mma mmc mmf mmm mmn mmp mna mnc mnf mnm mnn mnp mpa mpc mpf mpm mpn mpp naa nac naf nam nan nap nca ncc ncf ncm ncn ncp nfa nfc nff nfn nfp nma nmc nmm nmn nmp nna nnc nnf nnm nnn nnp npa npc npf npm npn npp p-p paa pac paf pam pan pap pca pcc pcf pcm pcn pcp pfa pfc pff pfm pfn pfp pma pmc pmf pmm pmn pmp pn- pna pnc pnf pnm pnn pnp ppa ppc ppf ppm ppn ppp