-ic a-a a-c a-i a-z aaa aac aag aai aan aao aar aaz ac- aca acc acg aci acn aco acr acz ag- aga agc agg agi agn ago agr agz ai- aia aic aig aii ain aio air aiz an- ana anc ang ani ann ano anr anz aoa aoc aog aoi aon aoo aor ar- ara arc arg ari arn aro arr arz az- aza azg azi azn azo azz c-- caa cac cag cai can cao car caz cca ccc ccg cci ccn cco ccr ccz cga cgc cgg cgi cgn cgo cgr ci- cia cic cig cii cin cio cir cn- cna cnc cng cni cnn cno cnr co- coa coc cog coi con coo cor coz cra crc crg cri crn cro crr crz cz- czc czo gaa gac gag gai gan gao gar gaz gca gcc gcg gci gcn gco gcr gga ggc ggg ggi ggn ggo ggr ggz gia gic gig gii gin gio gir giz gna gnc gni gnn gno gnr goa goc gog goi gon goo gor goz gra grc grg gri grn gro grr gza gzo gzr ia- iaa iac iag iai ian iao iar iaz ica icc icg ici icn ico icr icz iga igc igg igi ign igo igr iia iic iii iin iio iir in- ina inc ing ini inn ino inr io- ioa ioc iog ioi ion ioo ior ir- ira irc irg iri irn iro irr iza izi izo izz n-i naa nac nag nai nan nao nar naz nca ncc ncg nci ncn nco ncr nga ngc ngg ngi ngn ngo nia nic nig nii nin nio nir niz nna nnc nng nni nnn nno nnz no- noa noc nog noi non noo nor noz nra nrc nrg nri nrn nro nrr nrz nzg nzi nzo nzz o-i oaa oac oag oai oan oao oar oc- oca occ ocg oci ocn oco ocr ocz oga ogc ogg ogi ogn ogo oia oic oii oin oio oir oiz on- ona onc ong oni onn ono onr oo- ooa ooc oog ooi oon ooo oor or- ora orc org ori orn oro orr orz oza ozo ozz ra- raa rac rag rai ran rao rar raz rca rcc rcg rci rcn rco rcr rga rgc rgg rgi rgn rgo rgr ria ric rig rii rin rio rir riz rna rnc rng rni rnn rno rnr rnz roa roc rog roi ron roo ror roz rra rrc rrg rri rrn rrr rza rzo z-g zaa zac zag zai zan zao zar zaz zco zgg zgi zia zig zin zio zir ziz znc znn zno zo- zoa zoc zog zoi zon zoo zor zro zzr zzz