-ic a-a a-c a-i a-t aaa aac aae aag aai aan aat aau aax ac- aca acc ace acg aci acn act acu acx aea aec aee aeg aei aen aet aeu aex ag- aga agc age agg agi agn agt agu agx ai- aia aic aie aig aii ain ait aiu aix an- ana anc ane ang ani ann ant anu anx at- ata atc ate atg ati atn att atu atx au- aua auc aue aug aui aun aut aux ax- axa axe axi axn axt axx c-- caa cac cae cag cai can cat cau cax cca ccc cce ccg cci ccn cct ccu ccx ce- cea cec cee ceg cei cen cet ceu cex cga cgc cge cgg cgi cgn cgt cgu ci- cia cic cie cig cii cin cit ciu cix cn- cna cnc cne cng cni cnn cnt cnu cnx cta ctc cte ctg cti ctn ctt ctu ctx cua cuc cue cug cui cun cut cuu cxc cxi cxt cxx eaa eac eae eag eai ean eat eau eax ec- eca ecc ece ecg eci ecn ect ecu ecx eea eec eee eeg een eet eex ega egc ege egg egi egn egt egu egx eia eic eie eig eii ein eit eiu eix en- ena enc ene eng eni enn ent enu eta etc ete etg eti etn ett etu etx eu- eua euc eue eug eui eun eut eux ex- exa exc exe exi ext exu exx gaa gac gae gag gai gan gat gau gca gcc gce gcg gci gcn gct gcu ge- gea gec gee geg gei gen get geu gex gga ggc ggg ggi ggn ggt ggu gia gic gie gig gii gin git giu gna gnc gne gni gnn gnt gnu gta gtc gte gtg gti gtn gtt gtu gtx gu- gua guc gue gug gui gun gut guu gxa gxt ia- iaa iac iae iag iai ian iat iau ica icc ice icg ici icn ict icu ie- iea iec iee ieg iei ien iet iex iga igc ige igg igi ign igt igu iia iic iie iii iin iit iiu iix in- ina inc ine ing ini inn int inu inx ita itc ite itg iti itn itt itu itx iu- iua iuc iue iug iui iut ixc ixe ixi ixn n-i naa nac nae nag nai nan nat nau nax nca ncc nce ncg nci ncn nct ncu ncx ne- nea nec nee neg nei nen net neu nex nga ngc nge ngg ngi ngn ngt ngu nia nic nie nig nii nin nit niu nix nna nnc nne nng nni nnn nnt nnu nta ntc nte ntg nti ntn ntt ntu ntx nua nuc nue nug nui nun nut nuu nux nxc nxt t-x taa tac tae tag tai tan tat tau tax tca tcc tce tcg tci tcn tct tcu tcx te- tea tec tee teg tei ten tet teu tex tga tgc tge tgg tgi tgn tgt tgu tia tic tie tig tii tin tit tiu tix tna tnc tne tng tni tnn tnt tnx tta ttc tte ttg tti ttn ttt ttu ttx tua tuc tue tug tui tun tut tuu tux txe txi txn txt txu ua- uaa uac uae uag uai uan uat uau uca ucc uce ucg uci ucn uct ucu uea uec uee ueg uei uen uet uga ugc uge ugg ugi ugn ugt ugu ugx uia uic uie uig uii uin uit uiu un- una unc une ung uni unn unt unu unx uta utc ute uti utn utt utu utx uua uuc uue uug uun uut uuu uxc uxt uxu xaa xac xag xan xat xau xci xcx xee xeg xen xet xeu xex xge xgi xia xic xie xii xin xit xiu xix xna xnc xnu xtc xti xtx xue xui xun xxi xxx