a-a a-c aaa aac aae aak aam aan aap ac- aca acc ace ack acm acn acp aea aec aee aek aem aen aep aka akc ake akk akm akn akp ama amc ame amk amm amn amp an- ana anc ane ank anm ann anp ap- apa apc ape apk apm apn app c-- caa cac cae cak cam can cap cca ccc cce cck ccm ccn ccp ce- cea cec cee cek cem cen cep cka ckc ckm cma cmc cme cmk cmm cmn cmp cn- cna cnc cne cnm cnn cnp cpa cpc cpe cpk cpm cpn cpp eaa eac eae eak eam ean eap ec- eca ecc ece eck ecm ecn eea eec eee eek eem een eep eka ekc eke ekp em- ema emc eme emk emm emn emp en- ena enc ene enk enm enn enp ep- epa epc epe epm epn epp ka- kaa kac kae kak kam kan kap kca kcc kce kck kcm kcn kcp ke- kea kec kee kek kem ken kep kkc kke kkk kkm kkn kkp kma kmc kme kmk kmm kmp kn- kna knc kne knk knm knn knp kpa kpc kpe kpk kpm kpn kpp maa mac mae mak mam man map mc- mca mcc mce mck mcm mcn mcp mea mec mee mek mem men mep mka mkc mke mkk mkm mkn mkp mma mmc mme mmk mmm mmn mmp mna mnc mne mnk mnm mnn mnp mpa mpc mpe mpk mpm mpn mpp naa nac nae nak nam nan nap nca ncc nce nck ncm ncn ncp ne- nea nec nee nek nem nen nep nka nkc nke nkk nkm nkn nkp nma nmc nme nmk nmm nmn nmp nna nnc nne nnk nnm nnn nnp npa npc npe npm npn npp p-p paa pac pae pak pam pan pap pca pcc pce pck pcm pcn pcp pea pec pee pek pem pen pep pka pkc pke pkm pkn pkp pma pmc pme pmk pmm pmn pmp pn- pna pnc pne pnk pnm pnn pnp ppa ppc ppe ppk ppm ppn ppp