a-a a-c aaa aac aak aam aay ac- aca acc ack acm acy aka akc akk akm ama amc amk amm amy ay- aya ayc ayk c-- caa cac cak cam cay cca ccc cck ccm cka ckc ckm cky cma cmc cmk cmm cmy cya cyc cyk cym ka- kaa kac kak kam kay kca kcc kck kcm kkc kkk kkm kky kma kmc kmk kmm kya kyc kym maa mac mak mam may mc- mca mcc mck mcm mka mkc mkk mkm mky mma mmc mmk mmm my- mya myc myk mym yaa yac yak yam yay yca ycc ycy yka ykk ykm yma ymc ymm yyc yyy