-ic a-a a-c a-i aaa aac aag aai aao aap aar ac- aca acc acg aci aco acp acr ag- aga agc agg agi ago agp agr ai- aia aic aig aii aio aip air aoa aoc aog aoi aoo aop aor ap- apa apc apg api apo app apr ar- ara arc arg ari aro arp arr c-- caa cac cag cai cao cap car cca ccc ccg cci cco ccp ccr cga cgc cgg cgi cgo cgp cgr ci- cia cic cig cii cio cip cir co- coa coc cog coi coo cop cor cpa cpc cpg cpi cpo cpp cpr cra crc crg cri cro crp crr g-p gaa gac gag gai gao gap gar gca gcc gcg gci gco gcp gcr gga ggc ggg ggi ggo ggp ggr gia gic gig gii gio gip gir goa goc gog goi goo gop gor gpa gpc gpg gpi gpo gpp gpr gra grc grg gri gro grp grr ia- iaa iac iag iai iao iap iar ica icc icg ici ico icp icr iga igc igg igi igo igp igr iia iic iii iio iip iir io- ioa ioc iog ioi ioo iop ior ipa ipc ipg ipi ipo ipp ipr ir- ira irc irg iri iro irp irr o-i oaa oac oag oai oao oap oar oc- oca occ ocg oci oco ocp ocr oga ogc ogg ogi ogo ogp oia oic oii oio oip oir oo- ooa ooc oog ooi ooo oop oor op- opa opc opg opi opo opp opr or- ora orc org ori oro orp orr p-p paa pac pag pai pao pap par pca pcc pcg pci pco pcp pcr pga pgc pgg pgi pgo pgp pgr pia pic pig pii pio pip pir poa poc pog poi poo pop por ppa ppc ppg ppi ppo ppp ppr pra prc prg pri pro prp prr ra- raa rac rag rai rao rap rar rca rcc rcg rci rco rcp rcr rga rgc rgg rgi rgo rgp rgr ria ric rig rii rio rip rir roa roc rog roi roo rop ror rpa rpc rpg rpi rpo rpp rpr rra rrc rrg rri rrp rrr