aaaa aaac aaca aacc aaco aact aacu aaoo aata aatc aatt ac-t acaa acac acat acca accc acco acct accu acoa acot acou acta actc acto actt actu acu- acuo acut aoca aotc aout at-t ataa atac atat atca atcc atco atoc atot atta atto attu atua atuc auaa auca auct aut- auto caaa caac caat cac- caca cacc caco cat- cata catc cato catt catu cauc cauo caut ccaa ccac ccat ccca cccc cccu ccoc cctc cctt ccuc ccut coat coca coco coct cocu coot cota cotc coto cott cotu coua cout ctca ctot ctta cuau cuca cucc cut- cuta cutc cuto cutt oaau ocac ocat occa occc occt oct- octa octo ooaa oooo otac oto- otoo otta otto ottu ouac ouat oucc out- outa outo ouu- taa- taat taca tacc taco tact taoa taou tata tato tatt tatu taua tauc taut tcca tccc tccu tctc toat toau toca toco tooa toot tota totc toto tott tout tttt tuao tuat tuca tucc tuco tuta tuto tutt tutu tuuo uaca uaoc uata uatu uaua ucat ucca ucua ucut uocc utac utau utto uttu uuoc uuta uuuu