a-a a-c aaa aac aak aam aar aas ac- aca acc ack acm acr acs aka akc akk akm akr aks ama amc amk amm amr ams ar- ara arc ark arm arr ars as- asa asc ask asm asr ass c-- caa cac cak cam car cas cca ccc cck ccm ccr ccs cka ckc ckm cks cma cmc cmk cmm cmr cms cra crc crk crm crr crs csa csc csk csm csr css ka- kaa kac kak kam kar kas kca kcc kck kcm kcr kcs kkc kkk kkm kkr kks kma kmc kmk kmm kms kra krc krk krr krs ksa ksc ksk ksm ksr kss m-r maa mac mak mam mar mas mc- mca mcc mck mcm mcr mcs mka mkc mkk mkm mkr mks mma mmc mmk mmm mmr mms mra mrc mrk mrm mrr mrs msa msc msk msm msr mss ra- raa rac rak ram rar ras rca rcc rcm rcr rcs rkc rkk rkm rks rma rmc rmm rmr rms rra rrc rrk rrm rrr rrs rsa rsc rsk rsm rsr rss saa sac sak sam sar sas sca scc sck scm scr scs sk- ska skc skk skm skr sks sma smc smk smm smr sms sr- sra src srk srm srr srs ss- ssa ssc ssk ssm ssr sss