a-a a-c aaa aac aak aam aar ac- aca acc ack acm acr aka akc akk akm akr ama amc amk amm amr ar- ara arc ark arm arr c-- caa cac cak cam car cca ccc cck ccm ccr cka ckc ckm cma cmc cmk cmm cmr cra crc crk crm crr ka- kaa kac kak kam kar kca kcc kck kcm kcr kkc kkk kkm kkr kma kmc kmk kmm kra krc krk krr m-r maa mac mak mam mar mc- mca mcc mck mcm mcr mka mkc mkk mkm mkr mma mmc mmk mmm mmr mra mrc mrk mrm mrr ra- raa rac rak ram rar rca rcc rcm rcr rkc rkk rkm rma rmc rmm rmr rra rrc rrk rrm rrr