a-a a-c a-t aaa aac aad aae aat aau ac- aca acc acd ace act acu ad- ada adc add ade adt adu aea aec aed aee aet aeu at- ata atc atd ate att atu au- aua auc aud aue aut c-- caa cac cad cae cat cau cca ccc ccd cce cct ccu cda cdc cdd cde cdt cdu ce- cea cec ced cee cet ceu cta ctc ctd cte ctt ctu cua cuc cud cue cut cuu daa dac dad dae dat dau dca dcc dcd dce dct dcu dda ddc ddd dde ddt ddu de- dea dec ded dee det deu dta dtc dtd dte dtt dtu dua duc dud due dut eaa eac ead eae eat eau ec- eca ecc ecd ece ect ecu ed- eda edc edd ede edt edu eea eec eed eee eet eta etc etd ete ett etu eu- eua euc eud eue eut taa tac tad tae tat tau tca tcc tcd tce tct tcu tda tdc tdd tde tdt tdu te- tea tec ted tee tet teu tta ttc ttd tte ttt ttu tua tuc tud tue tut tuu ua- uaa uac uad uae uat uau uca ucc ucd uce uct ucu uda udc udd ude udt udu uea uec ued uee uet uta utc utd ute utt utu uua uuc uue uut uuu