-ic a-a a-c a-i a-t aaa aac aae aag aai aan aao aas aat ac- aca acc ace acg aci acn aco acs act aea aec aee aeg aei aen aeo aes aet ag- aga agc age agg agi agn ago ags agt ai- aia aic aie aig aii ain aio ais ait an- ana anc ane ang ani ann ano ans ant aoa aoc aoe aog aoi aon aoo aos aot as- asa asc ase asg asi asn aso ass ast at- ata atc ate atg ati atn ato ats att c-- caa cac cae cag cai can cao cas cat cca ccc cce ccg cci ccn cco ccs cct ce- cea cec cee ceg cei cen ceo ces cet cga cgc cge cgg cgi cgn cgo cgs cgt ci- cia cic cie cig cii cin cio cis cit cn- cna cnc cne cng cni cnn cno cns cnt co- coa coc coe cog coi con coo cos cot csa csc cse csg csi csn cso css cst cta ctc cte ctg cti ctn cto cts ctt eaa eac eae eag eai ean eao eas eat ec- eca ecc ece ecg eci ecn eco ecs ect eea eec eee eeg een eeo ees eet ega egc ege egg egi egn ego egs egt eia eic eie eig eii ein eio eis eit en- ena enc ene eng eni enn eno ens ent eo- eoa eoc eoe eog eoi eon eoo eos eot es- esa esc ese esg esi esn eso ess est eta etc ete etg eti etn eto ets ett gaa gac gae gag gai gan gao gas gat gca gcc gce gcg gci gcn gco gcs gct ge- gea gec gee geg gei gen geo ges get gga ggc ggg ggi ggn ggo ggs ggt gia gic gie gig gii gin gio gis git gna gnc gne gni gnn gno gns gnt goa goc goe gog goi gon goo gos got gsa gsc gse gsg gsi gsn gso gss gst gta gtc gte gtg gti gtn gto gts gtt ia- iaa iac iae iag iai ian iao ias iat ica icc ice icg ici icn ico ics ict ie- iea iec iee ieg iei ien ies iet iga igc ige igg igi ign igo igs igt iia iic iie iii iin iio iis iit in- ina inc ine ing ini inn ino ins int io- ioa ioc ioe iog ioi ion ioo ios iot is- isa isc ise isg isi isn iso iss ist ita itc ite itg iti itn ito its itt n-i naa nac nae nag nai nan nao nas nat nca ncc nce ncg nci ncn nco ncs nct ne- nea nec nee neg nei nen neo nes net nga ngc nge ngg ngi ngn ngo ngs ngt nia nic nie nig nii nin nio nis nit nna nnc nne nng nni nnn nno nns nnt no- noa noc noe nog noi non noo nos not nsa nsc nse nsg nsi nsn nso nss nst nta ntc nte ntg nti ntn nto nts ntt o-i oaa oac oae oag oai oan oao oas oat oc- oca occ ocg oci ocn oco ocs oct oea oec oee oeg oei oen oeo oes oet oga ogc oge ogg ogi ogn ogo ogs ogt oia oic oie oii oin oio ois oit on- ona onc one ong oni onn ono ons ont oo- ooa ooc oog ooi oon ooo oos oot os- osa osc ose osg osi osn oso oss ost ot- ota otc ote otg oti otn oto ots ott saa sac sae sag sai san sao sas sat sca scc sce scg sci scn sco scs sct se- sea sec see seg sei sen seo ses set sga sgc sge sgg sgi sgn sgo sgs sgt sia sic sie sig sii sin sio sis sit sna snc sne sng sni snn sno sns snt soa soc soe sog soi son soo sos sot ss- ssa ssc sse ssg ssi ssn sso sss sst sta stc ste stg sti stn sto sts stt taa tac tae tag tai tan tao tas tat tca tcc tce tcg tci tcn tco tcs tct te- tea tec tee teg tei ten teo tes tet tga tgc tge tgg tgi tgn tgo tgs tgt tia tic tie tig tii tin tio tis tit tna tnc tne tng tni tnn tno tns tnt to- toa toc toe tog toi ton too tos tot tsa tsc tse tsg tsi tsn tso tss tst tta ttc tte ttg tti ttn tto tts ttt