a-a a-c aaa aac aam aar aas ac- aca acc acm acr acs ama amc amm amr ams ar- ara arc arm arr ars as- asa asc asm asr ass c-- caa cac cam car cas cca ccc ccm ccr ccs cma cmc cmm cmr cms cra crc crm crr crs csa csc csm csr css m-r maa mac mam mar mas mc- mca mcc mcm mcr mcs mma mmc mmm mmr mms mra mrc mrm mrr mrs msa msc msm msr mss ra- raa rac ram rar ras rca rcc rcm rcr rcs rma rmc rmm rmr rms rra rrc rrm rrr rrs rsa rsc rsm rsr rss saa sac sam sar sas sca scc scm scr scs sma smc smm smr sms sr- sra src srm srr srs ss- ssa ssc ssm ssr sss