-th a-a a-c a-t aaa aac aae aaf aah aat aau aax ac- aca acc ace acf ach act acu acx aea aec aee aef aeh aet aeu aex af- afa afc afe aff afh aft afu afx aha ahc ahe ahf ahh aht ahu ahx at- ata atc ate atf ath att atu atx au- aua auc aue auf auh aut aux ax- axa axe axh axt axx c-- caa cac cae caf cah cat cau cax cca ccc cce ccf cch cct ccu ccx ce- cea cec cee cef ceh cet ceu cex cfa cfc cfe cff cfh cft cfu cfx ch- cha chc che chf chh cht chu chx cta ctc cte ctf cth ctt ctu ctx cua cuc cue cuf cuh cut cuu cxc cxf cxh cxt cxx eaa eac eae eaf eah eat eau eax ec- eca ecc ece ecf ech ect ecu ecx eea eec eee eef eet eex ef- efa efc efe eff efh eft efx eha ehc ehe ehf ehh eht ehu eta etc ete etf eth ett etu etx eu- eua euc eue euf eut eux ex- exa exc exe exh ext exu exx faa fac fae faf fah fat fau fax fca fcc fce fcf fct fcu fcx fea fec fee fef feh fet feu fex ffa ffc ffe fff ffh fft ffu ffx fha fhc fhe fhf fhh fta ftc fte ftf fth ftt ftu ftx fua fue fuf fut fuu fux fxe fxt fxu fxx haa hac hae haf hah hat hau hax hca hcc hce hcf hch hct he- hea hec hee hef heh het heu hex hfa hfc hfe hff hfh hft hfu hha hhc hhe hhf hhh hht hhu hta htc hte htf hth htt htx hua huc hue huf huh hut huu hux hxc t-x taa tac tae taf tah tat tau tax tca tcc tce tcf tch tct tcu tcx te- tea tec tee tef teh tet teu tex tfa tfc tfe tff tfh tft tfu tfx th- tha thc the thf thh tht thu thx tta ttc tte ttf tth ttt ttu ttx tua tuc tue tuf tuh tut tuu tux txe txf txt txu ua- uaa uac uae uaf uah uat uau uca ucc uce ucf uch uct ucu uea uec uee uef ueh uet ufa ufc ufe uff ufh uft ufu ufx uha uhc uhe uhf uhh uht uhu uta utc ute utf uth utt utu utx uua uuc uue uut uuu uxc uxf uxt uxu xaa xac xaf xat xau xcf xch xcx xee xet xeu xex xfa xfe xfh xft xfx xht xtc xtf xtx xue xxx