a-a a-c aaa aac aae aag aah aan aau aax ac- aca acc ace acg ach acn acu acx aea aec aee aeg aeh aen aeu aex ag- aga agc age agg agh agn agu agx aha ahc ahe ahg ahh ahn ahu ahx an- ana anc ane ang anh ann anu anx au- aua auc aue aug auh aun aux ax- axa axe axh axn axx c-- caa cac cae cag cah can cau cax cca ccc cce ccg cch ccn ccu ccx ce- cea cec cee ceg ceh cen ceu cex cga cgc cge cgg cgh cgn cgu ch- cha chc che chg chh chn chu chx cn- cna cnc cne cng cnh cnn cnu cnx cua cuc cue cug cuh cun cuu cxc cxh cxx eaa eac eae eag eah ean eau eax ec- eca ecc ece ecg ech ecn ecu ecx eea eec eee eeg een eex ega egc ege egg egh egn egu egx eha ehc ehe ehg ehh ehn ehu en- ena enc ene eng enh enn enu eu- eua euc eue eug eun eux ex- exa exc exe exh exu exx gaa gac gae gag gah gan gau gca gcc gce gcg gch gcn gcu ge- gea gec gee geg geh gen geu gex gga ggc ggg ggh ggn ggu gha ghc ghe ghg ghh ghn gna gnc gne gnn gnu gu- gua guc gue gug gun guu gxa haa hac hae hag hah han hau hax hca hcc hce hcg hch hcn he- hea hec hee heg heh hen heu hex hga hgc hge hgg hgh hgn hgu hha hhc hhe hhg hhh hhn hhu hna hnc hne hng hnh hnn hnu hua huc hue hug huh hun huu hux hxc naa nac nae nag nah nan nau nax nca ncc nce ncg nch ncn ncu ncx ne- nea nec nee neg neh nen neu nex nga ngc nge ngg ngh ngn ngu nha nhc nhe nhg nhh nhn nhu nna nnc nne nng nnh nnn nnu nua nuc nue nug nuh nun nuu nux nxc ua- uaa uac uae uag uah uan uau uca ucc uce ucg uch ucn ucu uea uec uee ueg ueh uen uga ugc uge ugg ugh ugn ugu ugx uha uhc uhe uhh uhu un- una unc une ung unh unn unu unx uua uuc uue uug uun uuu uxc uxu xaa xac xag xan xau xch xcx xee xeg xen xeu xex xge xna xnc xnu xue xun xxx