a-be a-ha aaaa aaab aaac aaae aaah aaam aaba aabb aabc aabh aabm aaca aacb aacc aace aach aacm aaea aaec aaem aaha aama aamb aamc aame abaa abab abac abae abam abb- abba abbb abbe abca abcb abcc abch abec abee abha abhm abma abmb abmc acaa acab acac acae acba acca accc acce acch accm ace- acea acec aceh acem acha ache achh acma acmc acme acmh aeac aecb ahab ahac ahah aham ahem ahha ahmc ahme amaa amac amae amah amam amb- amba ambe amca amcc amec amee amm- amma amme baaa baah baam baba babb babe babm bac- baca bacc bace bach baha bama bamb bamc bame bamm bbbb bbch bbcm bbeb bcaa bcam bcbc bcca bccc bccm bcec bche bcma beah beam beba bebb bebe beca bech beeb beem behm bema beme bhca bhcc bmaa bmce caaa caab caac caah caam caba cabe cac- caca cacc cace cach cacm caec caem caha cahe cama camb camc came camh camm cbac cbbc cbca cbcc cbce cbcm cbea cbec cbee cbha cbme ccaa ccab ccac ccam ccba ccbc ccca cccb cccc cccm ccee ccha cche ccma ccmb ccmc ccmm ceac ceba cec- ceca cece cecm ceeb ceec ceem cema cemb ceme cemm chaa chab chac chae chah cham chca chce chch chcm chea cheb chec chee cheh chem chha chmb chmc cmaa cmac cmah cmba cmbc cmcc cmea cmec cmha cmhc cmmb cmmc eaba eabh eaca eacc each eaec eama eame ebac ebam ebba ebbc ebcc ecaa ecac ecam ecbc ecbe ecca eccb eccc ecce eccm ecem echa eche ecma eeca eeea eeee ehaa ehcc ehea eheh emac emae emam emba embe emcc emhc emma emme haab haam haba habe hace haec haem haha hama hamc hame hamm hcbc hcca hccb hccc hcch hcmc hcmm heah heam hebb hebe heca hech heeb heem hehe hem- hema heme hhaa hhhh hmae hmhb hmmm maaa maac maam maba mabe mac- maca macb macc mace mach maee maem maha mahe mama mamc mame mbac mbam mbba mbca mcaa mcac mcba mcbc mcca mccc mcmc meah mebe mec- meca mecc mece mech meem mehe mema memc meme mhac mhem mhmm mmaa mmab mmac mmcc mmcm mmea mmhm mmmc mmmh mmmm