a-be aaaa aaab aaac aaae aaam aaba aabb aabc aabm aabt aaca aacb aacc aace aacm aaco aact aaea aaec aaem aama aamb aamc aame aamo aaoe aaoo aata aatc aatt abaa abab abac abae abam abat abb- abba abbb abbe abbo abbt abca abcb abcc abct abec abee abet abma abmb abmc abmt aboa abob aboo abot abta ac-t acaa acab acac acae acat acba acca accc acce accm acco acct ace- acea acec acem acet acma acmc acme acoa acoe acom acot acta actc acte acto actt aeac aecb aect aemt aeom aeta aetc aeto aett amaa amac amae amam amat amb- amba ambe ambo amca amcc amco amec amee amet amm- amma amme ammo amob amoc amoo amot amta amtc amte amto aoba aoca aoce aoma aotc at-t ataa atab atac atae atat atca atcc atco atea atec atee atem ateo atm- atma atme atmo atob atoc atoe atom atot atta atte atto baaa baam baat baba babb babe babm babo bac- baca bacc bace baco bact bama bamb bamc bame bamm bata batc bate bato batt bbbb bbcm bbeb bbet bcaa bcam bcat bcbc bcca bccc bccm bcec bcet bcma bctc beam beat beba bebb bebe bebo beca beeb beem beet bema beme beo- beot beta betc bete beto bett bmaa bmce bmoc bmtc boab boac boat boba bobb bobe bobo boca boce bocm boco boea boec boee boeo boet boma bomb bome bomt boob booc booe boom boot bota botb bote boto bott btaa btcc btec btob bttb c-bo caaa caab caac caam caat caba cabe cabo cac- caca cacc cace cacm caco caec caem cama camb camc came camm camo camt cat- cata catb catc cate catm cato catt cbac cbat cbbc cbca cbcc cbce cbcm cbct cbea cbec cbee cbet cbme cbot cbta cbtc ccaa ccab ccac ccam ccat ccba ccbc ccca cccb cccc cccm ccee ccma ccmb ccmc ccmm ccob ccoc ccom cctb cctc cctt ceac ceat ceba cec- ceca cece cecm ceco cect ceeb ceec ceem cema cemb ceme cemm cet- ceta cete ceto cmaa cmac cmba cmbc cmcc cmea cmec cmmb cmmc cmoc cmot cmta cmtc coat coba cobb cobe cobo coca coce coco coct com- coma comb comc come comm como coob coom coot cota cotb cotc cote coto cott ctab ctae ctba ctca ctec ctma ctmo ctot ctta eaba eaca eacc eaec eama eame eaom eata eate ebac ebam ebba ebbc ebbo ebcc eboe eboo ecaa ecac ecam ecao ecat ecbc ecbe ecca eccb eccc ecce eccm ecco ecct ecem ecma eco- ecot ect- ecta ectc ecto eeca eeea eeee eemo eeoc eeta eetc eete emac emae emam emba embe embo emcc emco emet emma emme emta emte eota eotc eoto etam etat etbc etcc etco etec etee etem etoe etta ette etto maaa maac maam maat maba mabe mabo mac- maca macb macc mace maco mact maee maem maeo mama mamc mame mamo maoc mata matc mate mato matt mbac mbam mbba mbca mbta mcaa mcac mcat mcba mcbc mcca mccc mcmc mcmt mcot mctc meat mebe mebo mec- meca mecc mece meco meem meet mema memc meme memo meoc met- meta mete meto mett mmaa mmab mmac mmcc mmcm mmct mmea mmmc mmmm moaa moab moac moam moat moba mobb mobe mobo moca moco moea moet moma mome momo mooa moob mooc mooe moot mota motb mote motm moto mott mtaa mtab mtac mtbc mtbo mtoa mtoe mtom o-eo oama oate obba obbo obea obec obet oboe obot ocab ocac ocam ocat ocbc occa occc occt oce ocee ocet ocma ocom oct- octa octe octo oec- oeca oecc oeec oeme oeta omac omam omao ombe ombo omca omee omeo omet omma omo- omoa omoe omoo ooaa ooba oobe ooma oome oooo ootb otac otea otee otem otma oto- otoe otoo otta otte otto t-mo taa- taat taba tabb tabc tabe tabo taca tacc tace taco tact taec taem tama tamc tame tamm tamo taoa taom tata tatb tate tato tatt tbca tbcb tbcc tbce tbta tcam tcca tccc tcom tctc teac team teat teba tebo teca teco tect teec teem teet tema teme temo teom teta tete teto tett tmaa tmac tmbc tmca tmcc tmcm tmtt toab toam toat toba tobe tobo tobt toca toce toco toea toee toet toma tomb tome tomm tomo tomt tooa toom toot tota totc tote totm toto tott ttab ttbb tteo ttma ttoe tttt