a-be a-ha a-ii aaaa aaab aaac aaae aaah aaai aaba aabb aabc aabh aabi aaca aacb aacc aace aach aaci aaea aaec aaha aaib aaic aaii abaa abab abac abae abai abb- abba abbb abbe abbi abca abcb abcc abch abci abec abee abha abhi abia abib abic abie acaa acab acac acae acai acba acca accc acce acch acci ace- acea acec aceh acha ache achh achi aci- acia acic acie aeac aebi aecb aeci ahab ahac ahah ahai ahha aiai aiba aica aicc aice aich aiea aiee aiha aiia aiib aiic ba-i baaa baah baba babb babe babi bac- baca bacc bace bach baci baha bahi baia baib baic baie bbbb bbch bbci bbeb bcaa bcbc bcca bccc bcci bcec bche bcia bcie beah beba bebb bebe bebi beca bech beci beeb beia beic bhai bhca bhcc bhie biba bibb bibe bibi bica bicc bice bich bici bieb biha bihe bihi caaa caab caac caah caba cabe cabi cac- caca cacc cace cach caci caec caei caha cahe caia caib caic cbac cbbc cbca cbcc cbce cbea cbec cbee cbha cbia ccaa ccab ccac ccai ccba ccbc ccca cccb cccc ccci ccee ccha cche ccic ccii ceac ceba cec- ceca cece ceci ceeb ceec chaa chab chac chae chah chai chca chce chch chci chea cheb chec chee cheh chha chia chib chic chie chih ciaa ciba cibc cibe cibi cica cicc cich cici ciee ciia ciii eaba eabh eaca eacc each eaec ebac ebba ebbc ebcc ebic ecaa ecac ecai ecbc ecbe ecca eccb eccc ecce ecci echa eche ecib eeca eeea eeee ehaa ehcc ehea eheh eica eich eiec eiei eiha h-ii haab haba habe habi hace haec haha haie hbic hcbc hcca hccb hccc hcch hchi heah hebb hebe hebi heca hech heeb hehe heia heic heie heih hhaa hhhh hi-c hiaa hiab hiba hibi hicc hice hich hiei hihc hihe hihi hiie i-be iaaa iaac iaai iaba iaca iacc iaea iaec iahc iaia ibac ibca ibea ibec ibeh ibia ibie icaa icab icac icai icbc icca iccb iccc icci icea icec icee ichc iche ichi ieac iecc ieie ihab ihba ihcc iiac iica iiie iiii