a-ha a-ii aaaa aaab aaac aaah aaai aaba aabb aabc aabh aabi aaca aacb aacc aach aaci aagh aaha aaib aaic aaii abaa abab abac abag abai abb- abba abbb abbi abca abcb abcc abch abci abha abhi abia abib abic abig acaa acab acac acag acai acba acca accc acch acci acga acgi acha achh achi aci- acia acic agac agag agai agba agca agcc agga aggi agha agia agib agic agig agii ahab ahac ahah ahai ahha aiai aiba aica aicc aich aiga aiha aiia aiib aiic ba-i baaa baah baba babb babi bac- baca bacc bach baci baga bagg bagh bagi baha bahi baia baib baic baig bbbb bbch bbci bbga bcaa bcbc bcbg bcca bccc bcci bcia bgca bgia bhag bhai bhca bhcc biba bibb bibi bica bicc bicg bich bici biga bigb bigc bigg biha bihi caaa caab caac caah caba cabg cabi cac- caca cacc cach caci caga cagg cagi caha caia caib caic cbac cbbc cbca cbcc cbga cbgb cbha cbia ccaa ccab ccac ccag ccai ccba ccbc ccca cccb cccc ccci ccga ccgc ccha ccic ccii cgac cgcc cgcg chaa chab chac chag chah chai chca chch chci chgb chha chia chib chic chig chih ciaa ciba cibc cibi cica cicc cich cici ciga cigi ciia ciii gaba gabb gabi gach gaga gagg gagi gaha gahi gaia gaig gbag gc-c gcaa gcbc gccc gcic gcii gggg gghg ghai ghia ghib giaa giac giai giba gibb gibh gica giga gigg gigi h-ii haab haag haba habi hag- haga hagg hagh hagi haha haig hbag hbic hcbc hcca hccb hccc hcch hcgh hchi hgah hggc hhaa hhgg hhhh hi-c hiaa hiab hiag hiba hibi hicc hich higa high higi hihc hihi iaaa iaac iaai iaba iaca iacc iahc iaia ibac ibca ibga ibia icaa icab icac icag icai icbc icca iccb iccc icci icga icgc ichc ichi igac igba igbc igcc igga igia ihab ihba ihcc iiac iica iiii