a-a a-c aaa aac aae aak aam aap ac- aca acc ace ack acm acp aea aec aee aek aem aep aka akc ake akk akm akp ama amc ame amk amm amp ap- apa apc ape apk apm app c-- caa cac cae cak cam cap cca ccc cce cck ccm ccp ce- cea cec cee cek cem cep cka ckc ckm cma cmc cme cmk cmm cmp cpa cpc cpe cpk cpm cpp eaa eac eae eak eam eap ec- eca ecc ece eck ecm eea eec eee eek eem eep eka ekc eke ekp em- ema emc eme emk emm emp ep- epa epc epe epm epp ka- kaa kac kae kak kam kap kca kcc kce kck kcm kcp ke- kea kec kee kek kem kep kkc kke kkk kkm kkp kma kmc kme kmk kmm kmp kpa kpc kpe kpk kpm kpp maa mac mae mak mam map mc- mca mcc mce mck mcm mcp mea mec mee mek mem mep mka mkc mke mkk mkm mkp mma mmc mme mmk mmm mmp mpa mpc mpe mpk mpm mpp p-p paa pac pae pak pam pap pca pcc pce pck pcm pcp pea pec pee pek pem pep pka pkc pke pkm pkp pma pmc pme pmk pmm pmp ppa ppc ppe ppk ppm ppp