a-a a-c aaa aac aak aam aan ac- aca acc ack acm acn aka akc akk akm akn ama amc amk amm amn an- ana anc ank anm ann c-- caa cac cak cam can cca ccc cck ccm ccn cka ckc ckm cma cmc cmk cmm cmn cn- cna cnc cnm cnn ka- kaa kac kak kam kan kca kcc kck kcm kcn kkc kkk kkm kkn kma kmc kmk kmm kn- kna knc knk knm knn maa mac mak mam man mc- mca mcc mck mcm mcn mka mkc mkk mkm mkn mma mmc mmk mmm mmn mna mnc mnk mnm mnn naa nac nak nam nan nca ncc nck ncm ncn nka nkc nkk nkm nkn nma nmc nmk nmm nmn nna nnc nnk nnm nnn