-ic a-a a-c a-i a-t a-z aaa aac aag aai aan aao aar aat aaz ac- aca acc acg aci acn aco acr act acz ag- aga agc agg agi agn ago agr agt agz ai- aia aic aig aii ain aio air ait aiz an- ana anc ang ani ann ano anr ant anz aoa aoc aog aoi aon aoo aor aot ar- ara arc arg ari arn aro arr art arz at- ata atc atg ati atn ato atr att atz az- aza azg azi azn azo azt azz c-- caa cac cag cai can cao car cat caz cca ccc ccg cci ccn cco ccr cct ccz cga cgc cgg cgi cgn cgo cgr cgt ci- cia cic cig cii cin cio cir cit cn- cna cnc cng cni cnn cno cnr cnt co- coa coc cog coi con coo cor cot coz cra crc crg cri crn cro crr crt crz cta ctc ctg cti ctn cto ctr ctt ctz cz- czc czo czt gaa gac gag gai gan gao gar gat gaz gca gcc gcg gci gcn gco gcr gct gga ggc ggg ggi ggn ggo ggr ggt ggz gia gic gig gii gin gio gir git giz gna gnc gni gnn gno gnr gnt goa goc gog goi gon goo gor got goz gra grc grg gri grn gro grr grt gta gtc gtg gti gtn gto gtr gtt gza gzo gzr ia- iaa iac iag iai ian iao iar iat iaz ica icc icg ici icn ico icr ict icz iga igc igg igi ign igo igr igt iia iic iii iin iio iir iit in- ina inc ing ini inn ino inr int io- ioa ioc iog ioi ion ioo ior iot ir- ira irc irg iri irn iro irr irt ita itc itg iti itn ito itt itz iza izi izo izz n-i naa nac nag nai nan nao nar nat naz nca ncc ncg nci ncn nco ncr nct nga ngc ngg ngi ngn ngo ngt nia nic nig nii nin nio nir nit niz nna nnc nng nni nnn nno nnt nnz no- noa noc nog noi non noo nor not noz nra nrc nrg nri nrn nro nrr nrt nrz nta ntc ntg nti ntn nto ntr ntt ntz nzg nzi nzo nzz o-i oaa oac oag oai oan oao oar oat oc- oca occ ocg oci ocn oco ocr oct ocz oga ogc ogg ogi ogn ogo ogt oia oic oii oin oio oir oit oiz on- ona onc ong oni onn ono onr ont oo- ooa ooc oog ooi oon ooo oor oot or- ora orc org ori orn oro orr ort orz ot- ota otc otg oti otn oto otr ott otz oza ozo ozt ozz ra- raa rac rag rai ran rao rar rat raz rca rcc rcg rci rcn rco rcr rct rga rgc rgg rgi rgn rgo rgr rgt ria ric rig rii rin rio rir rit riz rna rnc rng rni rnn rno rnr rnt rnz roa roc rog roi ron roo ror rot roz rra rrc rrg rri rrn rrr rrt rta rtc rtg rti rtn rto rtr rtt rtz rza rzo taa tac tag tai tan tao tar tat taz tca tcc tcg tci tcn tco tcr tct tga tgc tgg tgi tgn tgo tgr tgt tgz tia tic tig tii tin tio tir tit tiz tna tnc tng tni tnn tno tnr tnt tnz to- toa toc tog toi ton too tor tot toz tra trc trg tri trn tro trr trt trz tta ttc ttg tti ttn tto ttr ttt tza z-g zaa zac zag zai zan zao zar zat zaz zco zgg zgi zia zig zin zio zir zit ziz znc znn zno zo- zoa zoc zog zoi zon zoo zor zot zro zta ztr zzr zzt zzz