a-be a-ya aaaa aaab aaac aaae aaam aaba aabb aabc aabm aaby aaca aacb aacc aace aacm aacy aaea aaec aaem aama aamb aamc aame abaa abab abac abae abam abay abb- abba abbb abbe abby abca abcb abcc abec abee abey abma abmb abmc abyc abye abyy acaa acab acac acae acba acca accc acce accm accy ace- acea acec acem acey acma acmc acme aeac aeby aecb amaa amac amae amam amay amb- amba ambe amby amca amcc amec amee amey amm- amma amme amya amye ayam ayay ayca ayce ayem ayma ayme ayya baaa baam baba babb babe babm baby bac- baca bacc bace bama bamb bamc bame bamm baya baye bbay bbbb bbcm bbeb bcaa bcam bcbc bcca bccc bccm bcec bcma beam beay beba bebb bebe beby beca beeb beem beey bema beme bemy beya beye bmaa bmce byam byce byme caaa caab caac caam caba cabe caby cac- caca cacc cace cacm caec caem cama camb camc came camm camy caye cbac cbbc cbca cbcc cbce cbcm cbea cbec cbee cbme ccaa ccab ccac ccam ccba ccbc ccca cccb cccc cccm ccee ccma ccmb ccmc ccmm ceac ceba cec- ceca cece cecm ceeb ceec ceem cema cemb ceme cemm cemy cmaa cmac cmba cmbc cmcc cmea cmec cmmb cmmc cya- cyaa cyba cybb cybc cyc- cyca cycb cycc cym- cyma cyme cyy- cyyc eaba eaca eacc eaec eama eame ebac ebam ebay ebba ebbc ebby ebcc ebya ecaa ecac ecam ecbc ecbe ecca eccb eccc ecce eccm ecem ecma eeby eeca eeea eeee emac emae emam emba embe emby emcc emma emme emmy eyam eyeb eyec eyey eyme maaa maac maam maba mabe maby mac- maca macb macc mace macy maee maem mama mamc mame mamy may- maya maye mbac mbam mbba mbca mbye mcaa mcac mcba mcbc mcca mccc mcmc mebe mec- meca mecc mece meem mema memc meme mmaa mmab mmac mmcc mmcm mmea mmmc mmmm mmyy my-e mybb myc- myca myce myma mymy yaba yacc yacy yama yamb yame yamm yaya ycab yccc ycee yema yeme yemm yeye ymca yyyy