a-ii aaaa aaab aaac aaai aaba aabb aabc aabi aabt aaca aacb aacc aaci aaco aact aacu aaib aaic aaii aaoo aata aatc aatt abaa abab abac abai abat abau abb- abba abbb abbi abbo abbt abca abcb abcc abci abct abia abib abic abit abiu aboa abob aboo abot abou abta abtu abua abut ac-t acaa acab acac acai acat acba acca accc acci acco acct accu aci- acia acic acoa acot acou acta actc acti acto actt actu acu- acuo acut aiai aiba aibo aica aicc aiia aiib aiic aioc aioi aita aiti aitt aitu aiui aoba aoca aotc aout at-t ataa atab atac atai atat atca atcc atco atia atic atit atiu atob atoc atoi atot atta atti atto attu atua atub atuc auaa auca auci auct aut- auto ba-i baaa baat baba babb babi babo babu bac- baca bacc baci baco bact baia baib baic baio bait bata batc bati bato batt batu bau- bbau bbbb bbci bcaa bcat bcbc bcca bccc bcci bcia bcit bctc bcuc biao biat biba bibb bibi bibo bica bicc bici bico bio- bioc bioi biot biou bita bitc bito bitt bitu boab boac boai boat boba bobb bobi bobo bobu boca boco bocu boi- boii boit boiu boob booc boot bota botb boti boto bott boua bout btaa btcc btob bttb buat buba bubb bubi bubo bubu buca bucc buci buco bucu buic buit buiu but- buta buti buto butt c-bo caaa caab caac caat caba cabi cabo cabu cac- caca cacc caci caco caia caib caic caio cait caiu caoi cat- cata catb catc cati cato catt catu cauc cauo caut cbac cbat cbbc cbca cbcc cbct cbcu cbia cbit cbot cbta cbtc ccaa ccab ccac ccai ccat ccba ccbc ccca cccb cccc ccci cccu ccic ccii ccob ccoc cctb cctc cctt ccuc ccut ciaa ciao ciat ciau ciba cibc cibi cibo cica cicc cici cico cict cicu ciia ciii ciit ciob cita citb citi cito citt citu ciuc coai coat coba cobb cobi cobo cobu coca coco coct cocu coia coit coob coot cota cotb cotc coti coto cott cotu coua coub cout ctab ctba ctbi ctca ctia ctic ctot ctta cuau cub- cuba cubb cubi cuca cucc cuci cui- cuit cut- cuta cutc cuto cutt iaaa iaac iaai iaat iaba iaca iacc iact iacu iaia iata iatc iati ibac ibat ibca ibia ibot ibtb ibtc icaa icab icac icai icao icat icbc icca iccb iccc icci icco icct iccu icoc icta icub iiac iica iiii iiio iiit iioi iioo iita iitt iiuc ioba iobi ioci ioii ioio ioit iooi iooo iota ioto itaa itac itai itat itia itic itoi itoo itou itta itto iucc iuiu oaau oaic obai obba obbo obia obit oboi obot ocab ocac ocat ocbc occa occc occi occt oct- octa octi octo oiba oici oiii oita oitc oiti ooaa ooba oobi ooia oooo ootb otac otic otit oto- otoo otta otti otto ottu ouac ouat oucc ouii ouit out- outa outb outi outo ouu- taa- taat taba tabb tabc tabi tabo tabu taca tacc taci taco tact taia taio tait taoa taou tata tatb tati tato tatt tatu taua taub tauc taut tbca tbcb tbcc tbit tbta tcca tccc tccu tctc tiaa tiab tiao tiba tibi tibu tica ticc tico tiit tiiu tiou tita titc titi tito titt titu toab toat toau toba tobi tobo tobt tobu toca toci toco toit tooa toot tota totc toti toto tott toui tout ttab ttbb tttt tuao tuat tuba tubb tubo tubu tuca tucc tuco tuit tuiu tuta tuti tuto tutt tutu tuuo uabc uaca uaoc uata uatu uaua ubac ubba ubbi ubbo ubic ubii ubit uboc ucai ucat ucbc ucca ucci ucio ucua ucut uica uocc utac utai utau utia utti utto uttu uuoc uuta uuuu