a-a a-b a-c a-t aaa aab aac aae aao aat aav ab- aba abb abc abe abo abt abv ac- aca acb acc ace aco act acv aea aeb aec aee aeo aet aev aoa aob aoc aoe aoo aot aov at- ata atb atc ate ato att atv av- ava avb avc ave avo avt baa bab bac bae bao bat bav bba bbb bbc bbe bbo bbt bca bcb bcc bce bco bct bcv be- bea beb bec bee beo bet bev boa bob boc boe boo bot bov bta btb btc bte bto btt btv bva bvb bvc bve bvo bvt bvv c-- caa cab cac cae cao cat cav cba cbb cbc cbe cbo cbt cbv cca ccb ccc cce cco cct ccv ce- cea ceb cec cee ceo cet cev co- coa cob coc coe coo cot cov cta ctb ctc cte cto ctt ctv cva cvb cvc cve cvo cvt cvv eaa eab eac eae eao eat eav eba ebb ebc ebe ebo ebt ebv ec- eca ecb ecc ece eco ect ecv eea eeb eec eee eeo eet eev eo- eoa eob eoc eoe eoo eot eta etb etc ete eto ett etv eva evb evc eve evo evt evv oaa oab oac oae oao oat oav ob- oba obb obc obe obo obt obv oc- oca ocb occ oco oct ocv oea oeb oec oee oeo oet oo- ooa oob ooc ooo oot oov ot- ota otb otc ote oto ott otv ov- ova ovb ovc ove ovo ovv taa tab tac tae tao tat tav tba tbb tbc tbe tbo tbt tbv tca tcb tcc tce tco tct tcv te- tea teb tec tee teo tet tev to- toa tob toc toe too tot tov tta ttb ttc tte tto ttt ttv tva tvb tvc tve tvo tvt v-a v-e vaa vab vac vae vao vat vav vba vbc vbo vbv vca vcc vce vco vct vea veb vec vee veo vet voa vob voc voe voo vot vov vta vtb vtc vte vto vtt vtv vva vvb vvc vvo vvt vvv

-vac a-be aaaa aaab aaac aaae aaav aaba aabb aabc aabt aaca aacb aacc aace aaco aact aacv aaea aaec aaev aaoe aaoo aata aatc aatt aava abaa abab abac abae abat abb- abba abbb abbe abbo abbt abca abcb abcc abct abec abee abet aboa abob aboo abot abov abta abva ac-t acaa acab acac acae acat acba acca accc acce acco acct ace- acea acec acet acev acoa acoe acot acta actc acte acto actt actv acvv aeac aecb aect aeta aetc aeto aett aeva aoba aoca aoce aotc at-t ataa atab atac atae atat atca atcc atco atea atec atee ateo atob atoc atoe atot atta atte atto avab avao avat avcc avce avco avea avec aveo avot avva avvo baaa baat baba babb babe babo bac- baca bacc bace baco bact bata batc bate bato batt bava bave bbbb bbeb bbet bcaa bcat bcbc bcca bccc bcec bcet bctc bcvo beat beav beba bebb bebe bebo beca beeb beet beo- beot beta betc bete beto bett betv bevo boab boac boat boba bobb bobe bobo boca boce boco boea boec boee boeo boet boob booc booe boot bota botb bote boto bott bova bove bovo btaa btcc btec btob bttb c-bo caaa caab caac caat caba cabe cabo cac- caca cacc cace caco caec cat- cata catb catc cate cato catt catv cava cave cavo cbac cbat cbbc cbca cbcc cbce cbct cbea cbec cbee cbet cbot cbta cbtc cbtv cbva cbvb cbve ccaa ccab ccac ccat ccba ccbc ccca cccb cccc cccv ccee ccob ccoc cctb cctc cctt cctv ccvo ceac ceat ceba cec- ceca cece ceco cect ceeb ceec cet- ceta cete ceto cetv ceva cevo coat coba cobb cobe cobo coca coce coco coct coob coot cota cotb cotc cote coto cott cova cove covo ctab ctae ctba ctca ctec ctot ctta ctvo ctvt cvac cvca cvcc cvet cvte eaba eaca eacc eaec eata eate eave ebac ebba ebbc ebbo ebcc eboe eboo ecaa ecac ecao ecat ecbc ecbe ecca eccb eccc ecce ecco ecct eco- ecot ect- ecta ectc ecto ectv eeca eeea eeee eeoc eeta eetc eete eeva eota eotc eoto etat etbc etcc etco etec etee etoe etta ette etto etvo evac evae evat evea evet evoe evoo o-eo oate obba obbo obea obec obet oboe obot ocab ocac ocat ocbc occa occc occt oce ocee ocet oct- octa octe octo oec- oeca oecc oeec oeta ooaa ooba oobe oooo ootb otac otea otee oto- otoe otoo otov otta otte otto ovee ovet ovo- ovoo ovot taa- taat taba tabb tabc tabe tabo taca tacc tace taco tact tacv taec taoa tata tatb tate tato tatt tatv tava tave tavo tbca tbcb tbcc tbce tbta tcca tccc tcov tctc teac teat teba tebo teca teco tect teec teet teev teta tete teto tett teva toab toat toba tobe tobo tobt toca toce toco toea toee toet tooa toot tota totc tote toto tott tova tove tovo ttab ttbb tteo ttoe tttt tvac tvtv vaat vaca vace vaco vata vate vato vatt vava vbcc vcat veat veba vecc veet veta vete veto veve vevo voat voca voce voet vooc voot vota vote voto vtac vtec vvob vvvv

-aaa- -oate aaace aaaee aaaoc aaata aabaa aabba aacbc aacte abaab ababa ababe abaca abaco abate abava abave abbac abbat abbet abbot abccc abctv abeat abeba abebe abece abeet aboab aboat abobo aboot abote abott above abovo abtaa abtao acaca acacb acate aceae acebo acet- aceta aceto acoat acoot actto aeaea aebbe aetat aeto- aotea ataco atbat ateat ateca atete ateto ateve atoot atoto attea atto- avato avebe aveta avett aveva aveve avoca avote baabe baata baate baava babec babee baboo babot bacab bacao bacca bacco bacea bacot bacta batab batac batat batco batea batob batoe batoo batov batta batte batto bavet bbbee bbctv bccat beaco beata beate beato bebat bebot becca becco