-ic a-a a-c a-i aaa aac aag aai aan aao aap aar ac- aca acc acg aci acn aco acp acr ag- aga agc agg agi agn ago agp agr ai- aia aic aig aii ain aio aip air an- ana anc ang ani ann ano anp anr aoa aoc aog aoi aon aoo aop aor ap- apa apc apg api apn apo app apr ar- ara arc arg ari arn aro arp arr c-- caa cac cag cai can cao cap car cca ccc ccg cci ccn cco ccp ccr cga cgc cgg cgi cgn cgo cgp cgr ci- cia cic cig cii cin cio cip cir cn- cna cnc cng cni cnn cno cnp cnr co- coa coc cog coi con coo cop cor cpa cpc cpg cpi cpn cpo cpp cpr cra crc crg cri crn cro crp crr g-p gaa gac gag gai gan gao gap gar gca gcc gcg gci gcn gco gcp gcr gga ggc ggg ggi ggn ggo ggp ggr gia gic gig gii gin gio gip gir gna gnc gni gnn gno gnp gnr goa goc gog goi gon goo gop gor gpa gpc gpg gpi gpn gpo gpp gpr gra grc grg gri grn gro grp grr ia- iaa iac iag iai ian iao iap iar ica icc icg ici icn ico icp icr iga igc igg igi ign igo igp igr iia iic iii iin iio iip iir in- ina inc ing ini inn ino inp inr io- ioa ioc iog ioi ion ioo iop ior ipa ipc ipg ipi ipn ipo ipp ipr ir- ira irc irg iri irn iro irp irr n-i naa nac nag nai nan nao nap nar nca ncc ncg nci ncn nco ncp ncr nga ngc ngg ngi ngn ngo ngp nia nic nig nii nin nio nip nir nna nnc nng nni nnn nno nnp no- noa noc nog noi non noo nop nor npa npc npg npi npn npo npp npr nra nrc nrg nri nrn nro nrp nrr o-i oaa oac oag oai oan oao oap oar oc- oca occ ocg oci ocn oco ocp ocr oga ogc ogg ogi ogn ogo ogp oia oic oii oin oio oip oir on- ona onc ong oni onn ono onp onr oo- ooa ooc oog ooi oon ooo oop oor op- opa opc opg opi opn opo opp opr or- ora orc org ori orn oro orp orr p-p paa pac pag pai pan pao pap par pca pcc pcg pci pcn pco pcp pcr pga pgc pgg pgi pgn pgo pgp pgr pia pic pig pii pin pio pip pir pn- pna pnc png pni pnn pno pnp pnr poa poc pog poi pon poo pop por ppa ppc ppg ppi ppn ppo ppp ppr pra prc prg pri prn pro prp prr ra- raa rac rag rai ran rao rap rar rca rcc rcg rci rcn rco rcp rcr rga rgc rgg rgi rgn rgo rgp rgr ria ric rig rii rin rio rip rir rna rnc rng rni rnn rno rnp rnr roa roc rog roi ron roo rop ror rpa rpc rpg rpi rpn rpo rpp rpr rra rrc rrg rri rrn rrp rrr