-er -ic a-a a-c a-i a-t aaa aac aae aag aai aan aao aar aat aau aax ac- aca acc ace acg aci acn aco acr act acu acx aea aec aee aeg aei aen aeo aer aet aeu aex ag- aga agc age agg agi agn ago agr agt agu agx ai- aia aic aie aig aii ain aio air ait aiu aix an- ana anc ane ang ani ann ano anr ant anu anx aoa aoc aoe aog aoi aon aoo aor aot aou aox ar- ara arc are arg ari arn aro arr art aru arx at- ata atc ate atg ati atn ato atr att atu atx au- aua auc aue aug aui aun auo aur aut aux ax- axa axe axi axn axo axr axt axx c-- caa cac cae cag cai can cao car cat cau cax cca ccc cce ccg cci ccn cco ccr cct ccu ccx ce- cea cec cee ceg cei cen ceo cer cet ceu cex cga cgc cge cgg cgi cgn cgo cgr cgt cgu ci- cia cic cie cig cii cin cio cir cit ciu cix cn- cna cnc cne cng cni cnn cno cnr cnt cnu cnx co- coa coc coe cog coi con coo cor cot cou cox cra crc cre crg cri crn cro crr crt cru crx cta ctc cte ctg cti ctn cto ctr ctt ctu ctx cua cuc cue cug cui cun cuo cur cut cuu cxc cxi cxo cxr cxt cxx eaa eac eae eag eai ean eao ear eat eau eax ec- eca ecc ece ecg eci ecn eco ecr ect ecu ecx eea eec eee eeg een eeo eer eet eex ega egc ege egg egi egn ego egr egt egu egx eia eic eie eig eii ein eio eir eit eiu eix en- ena enc ene eng eni enn eno enr ent enu eo- eoa eoc eoe eog eoi eon eoo eor eot eou era erc ere erg eri ern ero err ert eru eta etc ete etg eti etn eto etr ett etu etx eu- eua euc eue eug eui eun eur eut eux ex- exa exc exe exi exo exr ext exu exx gaa gac gae gag gai gan gao gar gat gau gca gcc gce gcg gci gcn gco gcr gct gcu ge- gea gec gee geg gei gen geo ger get geu gex gga ggc ggg ggi ggn ggo ggr ggt ggu gia gic gie gig gii gin gio gir git giu gna gnc gne gni gnn gno gnr gnt gnu goa goc goe gog goi gon goo gor got gou gox gra grc gre grg gri grn gro grr grt gru grx gta gtc gte gtg gti gtn gto gtr gtt gtu gtx gu- gua guc gue gug gui gun guo gur gut guu gxa gxt ia- iaa iac iae iag iai ian iao iar iat iau ica icc ice icg ici icn ico icr ict icu ie- iea iec iee ieg iei ien ier iet iex iga igc ige igg igi ign igo igr igt igu iia iic iie iii iin iio iir iit iiu iix in- ina inc ine ing ini inn ino inr int inu inx io- ioa ioc ioe iog ioi ion ioo ior iot iou ir- ira irc ire irg iri irn iro irr irt iru irx ita itc ite itg iti itn ito itt itu itx iu- iua iuc iue iug iui iur iut ixc ixe ixi ixn n-i naa nac nae nag nai nan nao nar nat nau nax nca ncc nce ncg nci ncn nco ncr nct ncu ncx ne- nea nec nee neg nei nen neo ner net neu nex nga ngc nge ngg ngi ngn ngo ngt ngu nia nic nie nig nii nin nio nir nit niu nix nna nnc nne nng nni nnn nno nnt nnu no- noa noc noe nog noi non noo nor not nou nox nra nrc nre nrg nri nrn nro nrr nrt nru nrx nta ntc nte ntg nti ntn nto ntr ntt ntu ntx nua nuc nue nug nui nun nuo nur nut nuu nux nxc nxt o-i oaa oac oae oag oai oan oao oar oat oau oax oc- oca occ ocg oci ocn oco ocr oct ocu ocx oea oec oee oeg oei oen oeo oer oet oex oga ogc oge ogg ogi ogn ogo ogt ogx oia oic oie oii oin oio oir oit oiu on- ona onc one ong oni onn ono onr ont onu onx oo- ooa ooc oog ooi oon ooo oor oot oox or- ora orc ore org ori orn oro orr ort oru orx ot- ota otc ote otg oti otn oto otr ott otu ou- oua ouc oue oui oun ouo our out ox- oxa oxc oxi oxn oxo oxt oxx ra- raa rac rae rag rai ran rao rar rat rau rax rca rcc rce rcg rci rcn rco rcr rct rcu rcx re- rea rec ree reg rei ren reo rer ret reu rex rga rgc rge rgg rgi rgn rgo rgr rgt rgx ria ric rie rig rii rin rio rir rit rix rna rnc rng rni rnn rno rnr rnt rnu roa roc roe rog roi ron roo ror rot rou rox rra rrc rrg rri rrn rrr rrt rru rta rtc rte rtg rti rtn rto rtr rtt rtu rtx rua ruc rue rug rui run ruo rur rut ruu rux rxr t-x taa tac tae tag tai tan tao tar tat tau tax tca tcc tce tcg tci tcn tco tcr tct tcu tcx te- tea tec tee teg tei ten teo ter tet teu tex tga tgc tge tgg tgi tgn tgo tgr tgt tgu tia tic tie tig tii tin tio tir tit tiu tix tna tnc tne tng tni tnn tno tnr tnt tnx to- toa toc toe tog toi ton too tor tot tou tox tra trc tre trg tri trn tro trr trt tru trx