a-a a-c aaa aac aag aam aan aar aas ac- aca acc acg acm acn acr acs ag- aga agc agg agm agn agr ags ama amc amg amm amn amr ams an- ana anc ang anm ann anr ans ar- ara arc arg arm arn arr ars as- asa asc asg asm asn asr ass c-- caa cac cag cam can car cas cca ccc ccg ccm ccn ccr ccs cga cgc cgg cgm cgn cgr cgs cma cmc cmg cmm cmn cmr cms cn- cna cnc cng cnm cnn cnr cns cra crc crg crm crn crr crs csa csc csg csm csn csr css gaa gac gag gam gan gar gas gca gcc gcg gcm gcn gcr gcs gga ggc ggg ggm ggn ggr ggs gma gmc gmg gmm gmn gmr gms gna gnc gnm gnn gnr gns gra grc grg grm grn grr grs gsa gsc gsg gsm gsn gsr gss m-r maa mac mag mam man mar mas mc- mca mcc mcg mcm mcn mcr mcs mga mgc mgm mgn mgr mgs mma mmc mmg mmm mmn mmr mms mna mnc mng mnm mnn mnr mns mra mrc mrg mrm mrn mrr mrs msa msc msg msm msn msr mss naa nac nag nam nan nar nas nca ncc ncg ncm ncn ncr ncs nga ngc ngg ngm ngn ngs nma nmc nmg nmm nmn nmr nms nna nnc nng nnm nnn nns nra nrc nrg nrm nrn nrr nrs nsa nsc nsg nsm nsn nsr nss ra- raa rac rag ram ran rar ras rca rcc rcg rcm rcn rcr rcs rga rgc rgg rgn rgr rgs rma rmc rmg rmm rmn rmr rms rna rnc rng rnm rnn rnr rns rra rrc rrg rrm rrn rrr rrs rsa rsc rsg rsm rsn rsr rss saa sac sag sam san sar sas sca scc scg scm scn scr scs sga sgc sgg sgm sgn sgr sgs sma smc smg smm smn smr sms sna snc sng snm snn snr sns sr- sra src srg srm srn srr srs ss- ssa ssc ssg ssm ssn ssr sss