a-a a-c aaa aac aam aan aao aar aas ac- aca acc acm acn aco acr acs ama amc amm amn amo amr ams an- ana anc anm ann ano anr ans aoa aoc aom aon aoo aor aos ar- ara arc arm arn aro arr ars as- asa asc asm asn aso asr ass c-- caa cac cam can cao car cas cca ccc ccm ccn cco ccr ccs cma cmc cmm cmn cmo cmr cms cn- cna cnc cnm cnn cno cnr cns co- coa coc com con coo cor cos cra crc crm crn cro crr crs csa csc csm csn cso csr css m-o m-r maa mac mam man mao mar mas mc- mca mcc mcm mcn mco mcr mcs mma mmc mmm mmn mmo mmr mms mna mnc mnm mnn mno mnr mns moa moc mom mon moo mor mos mra mrc mrm mrn mro mrr mrs msa msc msm msn mso msr mss naa nac nam nan nao nar nas nca ncc ncm ncn nco ncr ncs nma nmc nmm nmn nmo nmr nms nna nnc nnm nnn nno nns no- noa noc nom non noo nor nos nra nrc nrm nrn nro nrr nrs nsa nsc nsm nsn nso nsr nss oaa oac oam oan oao oar oas oc- oca occ ocm ocn oco ocr ocs om- oma omc omm omn omo omr oms on- ona onc onn ono onr ons oo- ooa ooc oom oon ooo oor oos or- ora orc orm orn oro orr ors os- osa osc osm osn oso osr oss ra- raa rac ram ran rao rar ras rca rcc rcm rcn rco rcr rcs rma rmc rmm rmn rmo rmr rms rna rnc rnm rnn rno rnr rns roa roc rom ron roo ror ros rra rrc rrm rrn rrr rrs rsa rsc rsm rsn rso rsr rss saa sac sam san sao sar sas sca scc scm scn sco scr scs sma smc smm smn smo smr sms sna snc snm snn sno snr sns soa soc som son soo sor sos sr- sra src srm srn sro srr srs ss- ssa ssc ssm ssn sso ssr sss