-ic a-a a-c a-i aaa aac aag aai aan aar aas ac- aca acc acg aci acn acr acs ag- aga agc agg agi agn agr ags ai- aia aic aig aii ain air ais an- ana anc ang ani ann anr ans ar- ara arc arg ari arn arr ars as- asa asc asg asi asn asr ass c-- caa cac cag cai can car cas cca ccc ccg cci ccn ccr ccs cga cgc cgg cgi cgn cgr cgs ci- cia cic cig cii cin cir cis cn- cna cnc cng cni cnn cnr cns cra crc crg cri crn crr crs csa csc csg csi csn csr css gaa gac gag gai gan gar gas gca gcc gcg gci gcn gcr gcs gga ggc ggg ggi ggn ggr ggs gia gic gig gii gin gir gis gna gnc gni gnn gnr gns gra grc grg gri grn grr grs gsa gsc gsg gsi gsn gsr gss ia- iaa iac iag iai ian iar ias ica icc icg ici icn icr ics iga igc igg igi ign igr igs iia iic iii iin iir iis in- ina inc ing ini inn inr ins ir- ira irc irg iri irn irr irs is- isa isc isg isi isn isr iss n-i naa nac nag nai nan nar nas nca ncc ncg nci ncn ncr ncs nga ngc ngg ngi ngn ngs nia nic nig nii nin nir nis nna nnc nng nni nnn nns nra nrc nrg nri nrn nrr nrs nsa nsc nsg nsi nsn nsr nss ra- raa rac rag rai ran rar ras rca rcc rcg rci rcn rcr rcs rga rgc rgg rgi rgn rgr rgs ria ric rig rii rin rir ris rna rnc rng rni rnn rnr rns rra rrc rrg rri rrn rrr rrs rsa rsc rsg rsi rsn rsr rss saa sac sag sai san sar sas sca scc scg sci scn scr scs sga sgc sgg sgi sgn sgr sgs sia sic sig sii sin sir sis sna snc sng sni snn snr sns sr- sra src srg sri srn srr srs ss- ssa ssc ssg ssi ssn ssr sss