-ic a-a a-c a-i aaa aac aag aai aak aap aar aas ac- aca acc acg aci ack acp acr acs ag- aga agc agg agi agk agp agr ags ai- aia aic aig aii aik aip air ais aka akc akg aki akk akp akr aks ap- apa apc apg api apk app apr aps ar- ara arc arg ari ark arp arr ars as- asa asc asg asi ask asp asr ass c-- caa cac cag cai cak cap car cas cca ccc ccg cci cck ccp ccr ccs cga cgc cgg cgi cgp cgr cgs ci- cia cic cig cii cik cip cir cis cka ckc cki cks cpa cpc cpg cpi cpk cpp cpr cps cra crc crg cri crk crp crr crs csa csc csg csi csk csp csr css g-p gaa gac gag gai gak gap gar gas gca gcc gcg gci gck gcp gcr gcs gga ggc ggg ggi ggp ggr ggs gia gic gig gii gik gip gir gis gka gkp gks gpa gpc gpg gpi gpk gpp gpr gps gra grc grg gri grk grp grr grs gsa gsc gsg gsi gsk gsp gsr gss ia- iaa iac iag iai iap iar ias ica icc icg ici ick icp icr ics iga igc igg igi igk igp igr igs iia iic iii iip iir iis ika ikc iki ikk ikr iks ipa ipc ipg ipi ipp ipr ips ir- ira irc irg iri irk irp irr irs is- isa isc isg isi isk isp isr iss ka- kaa kac kag kai kak kap kar kas kca kcc kcg kci kck kcp kcr kcs kga kgc kgi kgp kgs kia kic kig kii kik kip kir kis kkc kki kkk kkp kkr kks kpa kpc kpi kpk kpp kpr kps kra krc krg kri krk krp krr krs ksa ksc ksg ksi ksk ksp ksr kss p-p paa pac pag pai pak pap par pas pca pcc pcg pci pck pcp pcr pcs pga pgc pgg pgi pgk pgp pgr pgs pia pic pig pii pik pip pir pis pka pkc pkg pki pkp pkr pks ppa ppc ppg ppi ppk ppp ppr pps pra prc prg pri prk prp prr prs ps- psa psc psg psi psk psp psr pss ra- raa rac rag rai rak rap rar ras rca rcc rcg rci rcp rcr rcs rga rgc rgg rgi rgk rgp rgr rgs ria ric rig rii rik rip rir ris rkc rkg rkk rkp rks rpa rpc rpg rpi rpk rpp rpr rps rra rrc rrg rri rrk rrp rrr rrs rsa rsc rsg rsi rsk rsp rsr rss saa sac sag sai sak sap sar sas sca scc scg sci sck scp scr scs sga sgc sgg sgi sgk sgp sgr sgs sia sic sig sii sik sip sir sis sk- ska skc skg ski skk skp skr sks spa spc spg spi spk spp spr sps sr- sra src srg sri srk srp srr srs ss- ssa ssc ssg ssi ssk ssp ssr sss