a-a a-c a-t aaa aac aad aae aat aau aax ac- aca acc acd ace act acu acx ad- ada adc add ade adt adu adx aea aec aed aee aet aeu aex at- ata atc atd ate att atu atx au- aua auc aud aue aut aux ax- axa axe axt axx c-- caa cac cad cae cat cau cax cca ccc ccd cce cct ccu ccx cda cdc cdd cde cdt cdu cdx ce- cea cec ced cee cet ceu cex cta ctc ctd cte ctt ctu ctx cua cuc cud cue cut cuu cxc cxt cxx daa dac dad dae dat dau dax dca dcc dcd dce dct dcu dcx dda ddc ddd dde ddt ddu ddx de- dea dec ded dee det deu dex dta dtc dtd dte dtt dtu dtx dua duc dud due dut dux dxc dxd dxt dxx eaa eac ead eae eat eau eax ec- eca ecc ecd ece ect ecu ecx ed- eda edc edd ede edt edu edx eea eec eed eee eet eex eta etc etd ete ett etu etx eu- eua euc eud eue eut eux ex- exa exc exd exe ext exu exx t-x taa tac tad tae tat tau tax tca tcc tcd tce tct tcu tcx tda tdc tdd tde tdt tdu tdx te- tea tec ted tee tet teu tex tta ttc ttd tte ttt ttu ttx tua tuc tud tue tut tuu tux txe txt txu ua- uaa uac uad uae uat uau uca ucc ucd uce uct ucu uda udc udd ude udt udu udx uea uec ued uee uet uta utc utd ute utt utu utx uua uuc uue uut uuu uxc uxt uxu xaa xac xad xat xau xcd xcx xda xdc xde xdt xed xee xet xeu xex xtc xtx xue xxx