-ic a-a a-c a-i a-z aaa aac aag aai aan aar aas aaz ac- aca acc acg aci acn acr acs acz ag- aga agc agg agi agn agr ags agz ai- aia aic aig aii ain air ais aiz an- ana anc ang ani ann anr ans anz ar- ara arc arg ari arn arr ars arz as- asa asc asg asi asn asr ass asz az- aza azg azi azn azs azz c-- caa cac cag cai can car cas caz cca ccc ccg cci ccn ccr ccs ccz 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 crz csa csc csg csi csn csr css csz cz- czc gaa gac gag gai gan gar gas gaz gca gcc gcg gci gcn gcr gcs gga ggc ggg ggi ggn ggr ggs ggz gia gic gig gii gin gir gis giz gna gnc gni gnn gnr gns gra grc grg gri grn grr grs gsa gsc gsg gsi gsn gsr gss gza gzr ia- iaa iac iag iai ian iar ias iaz ica icc icg ici icn icr ics icz 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 iza izi izz n-i naa nac nag nai nan nar nas naz nca ncc ncg nci ncn ncr ncs nga ngc ngg ngi ngn ngs nia nic nig nii nin nir nis niz nna nnc nng nni nnn nns nnz nra nrc nrg nri nrn nrr nrs nrz nsa nsc nsg nsi nsn nsr nss nsz nzg nzi nzs nzz ra- raa rac rag rai ran rar ras raz rca rcc rcg rci rcn rcr rcs rga rgc rgg rgi rgn rgr rgs ria ric rig rii rin rir ris riz rna rnc rng rni rnn rnr rns rnz rra rrc rrg rri rrn rrr rrs rsa rsc rsg rsi rsn rsr rss rza saa sac sag sai san sar sas saz 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 ssz sza szi szr z-g zaa zac zag zai zan zar zas zaz zcs zgg zgi zgs zia zig zin zir zis ziz znc znn zns zrs zsa zsg zsi zsz zzr zzs zzz