a-a a-c a-t aaa aac aao aat aau ac- aca acc aco act acu aoa aoc aoo aot aou at- ata atc ato att atu au- aua auc auo aut c-- caa cac cao cat cau cca ccc cco cct ccu co- coa coc coo cot cou cta ctc cto ctt ctu cua cuc cuo cut cuu oaa oac oao oat oau oc- oca occ oco oct ocu oo- ooa ooc ooo oot ot- ota otc oto ott otu ou- oua ouc ouo out taa tac tao tat tau tca tcc tco tct tcu to- toa toc too tot tou tta ttc tto ttt ttu tua tuc tuo tut tuu ua- uaa uac uao uat uau uca ucc uco uct ucu uoa uoc uoo uot uta utc uto utt utu uua uuc uut uuu