a-be aaaa aaab aaac aaae aaam aaba aabb aabc aabm aaca aacb aacc aace aacm aaco aacu aaea aaec aaem aama aamb aamc aame aamo aaoe aaoo abaa abab abac abae abam abau abb- abba abbb abbe abbo abca abcb abcc abec abee abma abmb abmc aboa abob aboo abou abua abue abum acaa acab acac acae acba acca accc acce accm acco accu ace- acea acec acem acma acmc acme acmu acoa acoe acom acou acu- acue acum acuo aeac aecb aeom amaa amac amae amam amb- amba ambe ambo ambu amca amcc amco amec amee ameu amm- amma amme ammo ammu amob amoc amoo amou amua amum aoba aoca aoce aoeu aoma auaa aube auca auce auma baaa baam baba babb babe babm babo babu bac- baca bacc bace baco bama bamb bamc bame bamm bamu bau- baum bbau bbbb bbcm bbeb bcaa bcam bcbc bcca bccc bccm bcec bcma bcuc beam beau beba bebb bebe bebo beca becu beeb beem bema beme bemu beo- bmaa bmce bmoc boab boac boba bobb bobe bobo bobu boca boce bocm boco bocu boea boec boee boeo boma bomb bome bomu boob booc booe boom boua boue boum buba bubb bube bubo bubu buca bucc buce buco bucu buea buem bueu bum- buma bumb c-bo caaa caab caac caam caba cabe cabo cabu cac- caca cacc cace cacm caco caec caem caeu cama camb camc came camm camo cauc caum cauo cbac cbbc cbca cbcc cbce cbcm cbcu cbea cbec cbee cbme ccaa ccab ccac ccam ccba ccbc ccca cccb cccc cccm cccu ccee ccma ccmb ccmc ccmm ccob ccoc ccom ccuc ceac ceba cebu cec- ceca cece cecm ceco ceeb ceec ceem cema cemb ceme cemm cemu ceou cmaa cmac cmba cmbc cmcc cmea cmec cmmb cmmc cmoc coba cobb cobe cobo cobu coca coce coco cocu com- coma comb comc come comm como comu coob coom coua coub coue cuau cub- cuba cubb cube cuca cucc cuce cucm cum- cuma cume eaba eaca eacc eaec eama eame eaom ebac ebam ebba ebbc ebbo ebcc eboe eboo ecaa ecac ecam ecao ecbc ecbe ecca eccb eccc ecce eccm ecco ecem ecma eco- ecou ecua eeca eeea eeee eemo eeoc emac emae emam emba embe embo emcc emco emeu emma emme emmu euba eubc eumc maaa maac maam maba mabe mabo mabu mac- maca macb macc mace maco macu maee maem maeo mama mamc mame mamo mamu maoc maua maum mbac mbam mbba mbca mbou mcaa mcac mcba mcbc mcca mccc mcmc mebe mebo mec- meca mecc mece meco meem mema memc meme memo memu meoc meou meum mmaa mmab mmac mmcc mmcm mmea mmmc mmmm moaa moab moac moam moba mobb mobe mobo moca moco moea moma mome momo momu mooa moob mooc mooe moue muac mube mubo muc- mucc muce mucu muee muma mume mumm mumo mumu o-eo oaau oama obba obbo obea obec oboe ocab ocac ocam ocbc occa occc oce ocee ocma ocom ocum oec- oeca oecc oeec oeme omac omam omao ombe ombo ombu omca omee omeo omma omo- omoa omoe omoo omuo ooaa ooba oobe ooma oome oooo ouac oucc ouea ouma oume ouu- uabc uaca uamc uaoc uaua ubac ubba ubbe ubbo uboc ucam ucbc ucca ucea ucmc ucom ucua ueba umaa umac umb- umba umbe umbo umec umma ummo umoe uocc uomo uuoc uuuu