-ic a-a a-c a-i a-t a-z aaa aac aag aai aan aao aas aat aaz ac- aca acc acg aci acn aco acs act acz ag- aga agc agg agi agn ago ags agt agz ai- aia aic aig aii ain aio ais ait aiz an- ana anc ang ani ann ano ans ant anz aoa aoc aog aoi aon aoo aos aot as- asa asc asg asi asn aso ass ast asz at- ata atc atg ati atn ato ats att atz az- aza azg azi azn azo azs azt azz c-- caa cac cag cai can cao cas cat caz cca ccc ccg cci ccn cco ccs cct ccz cga cgc cgg cgi cgn cgo cgs cgt ci- cia cic cig cii cin cio cis cit cn- cna cnc cng cni cnn cno cns cnt co- coa coc cog coi con coo cos cot coz csa csc csg csi csn cso css cst csz cta ctc ctg cti ctn cto cts ctt ctz cz- czc czo czt gaa gac gag gai gan gao gas gat gaz gca gcc gcg gci gcn gco gcs gct gga ggc ggg ggi ggn ggo ggs ggt ggz gia gic gig gii gin gio gis git giz gna gnc gni gnn gno gns gnt goa goc gog goi gon goo gos got goz gsa gsc gsg gsi gsn gso gss gst gta gtc gtg gti gtn gto gts gtt gza gzo ia- iaa iac iag iai ian iao ias iat iaz ica icc icg ici icn ico ics ict icz iga igc igg igi ign igo igs igt iia iic iii iin iio iis iit in- ina inc ing ini inn ino ins int io- ioa ioc iog ioi ion ioo ios iot is- isa isc isg isi isn iso iss ist ita itc itg iti itn ito its itt itz iza izi izo izz n-i naa nac nag nai nan nao nas nat naz nca ncc ncg nci ncn nco ncs nct nga ngc ngg ngi ngn ngo ngs ngt nia nic nig nii nin nio nis nit niz nna nnc nng nni nnn nno nns nnt nnz no- noa noc nog noi non noo nos not noz nsa nsc nsg nsi nsn nso nss nst nsz nta ntc ntg nti ntn nto nts ntt ntz nzg nzi nzo nzs nzz o-i oaa oac oag oai oan oao oas oat oc- oca occ ocg oci ocn oco ocs oct ocz oga ogc ogg ogi ogn ogo ogs ogt oia oic oii oin oio ois oit oiz on- ona onc ong oni onn ono ons ont oo- ooa ooc oog ooi oon ooo oos oot os- osa osc osg osi osn oso oss ost ot- ota otc otg oti otn oto ots ott otz oza ozo ozs ozt ozz saa sac sag sai san sao sas sat saz sca scc scg sci scn sco scs sct sga sgc sgg sgi sgn sgo sgs sgt sia sic sig sii sin sio sis sit sna snc sng sni snn sno sns snt soa soc sog soi son soo sos sot soz ss- ssa ssc ssg ssi ssn sso sss sst ssz sta stc stg sti stn sto sts stt stz sza szi taa tac tag tai tan tao tas tat taz tca tcc tcg tci tcn tco tcs tct tga tgc tgg tgi tgn tgo tgs tgt tgz tia tic tig tii tin tio tis tit tiz tna tnc tng tni tnn tno tns tnt tnz to- toa toc tog toi ton too tos tot toz tsa tsc tsg tsi tsn tso tss tst tta ttc ttg tti ttn tto tts ttt tza tzs z-g zaa zac zag zai zan zao zas zat zaz zco zcs zgg zgi zgs zia zig zin zio zis zit ziz znc znn zno zns zo- zoa zoc zog zoi zon zoo zos zot zsa zsg zsi zst zsz zta zzs zzt zzz