a-be aaaa aaab aaac aaad aaae aaal aaam aaba aabb aabc aabd aabl aabm aaca aacb aacc aacd aace aacl aacm aada aadc aade aaea aaec aaem aala aalc aald aale aall aama aamb aamc aamd aame abaa abab abac abad abae abal abam abb- abba abbb abbe abca abcb abcc abcd abcl abda abec abed abee abel abla able abma abmb abmc acaa acab acac acad acae acba acbl acca accc accd acce accm acda acdb acdc acde acdm ace- acea acec aced acel acem acla aclc acle acma acmc acme adaa adab adac adad adae adal adam adba adbc adcc adda addc addd adde addl adea adeb adee adel adem adle adma admb adme adml aeac aecb aecl aede aela aelc alaa alac alad alae alal alam alb- alba albc albe albm alca alcc alce ald- alda alde aldl aldm alea alec aled alee alem all- alla alle alll alma almc alme amaa amac amad amae amal amam amb- amba ambe amca amcc amda amec amed amee amel amla amm- amma amme baaa baad baal baam baba babb babe babm bac- baca bacc bace bada badb badd bade baed bael bala balc bald bale ball balm bama bamb bamc bame baml bamm bbad bbbb bbcm bbdd bbeb bblb bcaa bcam bcbc bcca bccc bccl bccm bcda bcde bcec bcma bdbc bddc bdle bead beal beam beba bebb bebe beca beda bede bedl beeb beed beel beem bela beld bele bell belm bema beme blaa blab blac blad blae blam bldc blea bleb bled blee blem blme bmaa bmce bmdb c-cd caaa caab caac caal caam caba cabe cac- caca cacc cace cacm cada cadc cadd cade cadm caec caem cala calc cald cale call calm cama camb camc came caml camm cbac cbal cbbc cbca cbcc cbce cbcl cbcm cbdb cbdc cbea cbec cbee cblb cblc cbme ccaa ccab ccac ccad ccam ccba ccbc ccca cccb cccc cccl cccm ccdc ccdm cced ccee ccel ccla cclc cclm ccma ccmb ccmc ccmd ccmm cd-e cdaa cdac cdad cdba cdda cddb cddl cdec cdma ceac cead ceal ceba cec- ceca cece cecm ceda cedd cede ceeb ceec ceel ceem cel- cela celc cele cell cema cemb ceme cemm clab clad clam clcd cldc clea clec cled clee clem clmd cmaa cmac cmba cmbc cmcc cmda cmdb cmea cmec cmla cmll cmmb cmmc cmml daab daad daae daal daam daba dabb daca dace dada dade daeb daem dala dale dall dama damb dame daml damm dbcc dcbc dcca dccb dccc dccl dcdb dcma dcml dddd ddlc deac dead deae deal deba debe dec- deca decc decd dece decl deda dedd dede deeb deed deel deem dela deld dele dell dem- dema demb demd deme dlab dlbd dmaa dmab dmac dmae dmba dmcc dmcm dmdc dmea e-cl e-la eaba eaca eacc eada eadb eadd eaec eala ealc eald eale eama eame ebac ebal ebam ebba ebbc ebcc ebed ebel ebla ecaa ecac ecad ecal ecam ecbc ecbe ecca eccb eccc ecce eccl eccm ecdc ecdl eced ecem ecla ecma edac edad edam edca edda eddc edde eddm ede- edea edel edem edla edle edma edme eeca eede eeea eeee eele el-b elab elac elad elal elam elba elbe elca elcb elce elda elde elea elec eled elee elem ella elle elma elme elml emac emad emae emam emba embd embe emcc emel emle emlm emma emme emml laaa laac laad laal laam laba labe laca lacc lace lacl lada ladd lade lael laem lala lald lale lall lalm lama lamb lamd lame lamm lbcc lbmc lcac lcad lcbc lcca lccc lcce lccm lcdd lddm leaa lead leal leam leba lebd leca lece leda lede leea leed leel leem lela lele lell lema leme lemm llcc lldb lldc lllc llll lmcc maaa maac maad maal maam maba mabe mac- maca macb macc macd mace mada madb madc madd made maee mael maem mal- mala mald male mall malm mama mamc mame mbac mbam mbba mbca mbda mbdb mbed mcaa mcac mcad mcba mcbc mcca mccc mccd mccl mcdc mcdd mcde mcdl mced mcla mcmc mcml mdac mdca mdcc mdcl mddl mddm mdea mdel mdma mdmc mdme mead meal mebe mec- meca mecc mecd mece meda medb medd mede meed meel meem mel- mela melb melc meld mele mell mema memc meme meml mlab mlba mlcc mlle mmaa mmab mmac mmcc mmcd mmcl mmcm mmda mmdb mmdc mmdl mmea mmmc mmmd mmmm