a-be a-ha aaaa aaab aaac aaad aaae aaah aaal aaba aabb aabc aabd aabh aabl aaca aacb aacc aacd aace aach aacl aada aadc aade aaea aaec aaha aahl aala aalc aald aale aall abaa abab abac abad abae abal abb- abba abbb abbe abca abcb abcc abcd abch abcl abda abec abed abee abel abha abla able acaa acab acac acad acae acba acbl acca accc accd acce acch acda acdb acdc acde ace- acea acec aced aceh acel acha ache achh achl acla aclc acle adaa adab adac adad adae adah adal adba adbc adcc adda addc addd adde addl adea adeb adee adeh adel adha adhd adle aeac aecb aecl aede aela aelc ahab ahac ahad ahah ahal ahdl ahed ahel ahha ahla ahle alaa alac alad alae alal alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee aleh alha all- alla alle allh alll baaa baad baah baal baba babb babe bac- baca bacc bace bach bada badb badd bade badh baed bael baha bahl bala balc bald bale ball bbad bbbb bbch bbdd bbeb bblb bcaa bcbc bcca bccc bccl bcda bcde bcec bchd bche bdbc bddc bddh bdle bead beah beal beba bebb bebe beca bech beda bede bedl beeb beed beel bela beld bele bell bhca bhcc bhdl bhel blaa blab blac blad blae blah bldc blea bleb bled blee bleh c-cd caaa caab caac caah caal caba cabe cac- caca cacc cace cach cada cadc cadd cade caec caha cahe cahl cala calc cald cale call cbac cbal cbbc cbca cbcc cbce cbcl cbdb cbdc cbea cbec cbee cbha cbhl cblb cblc ccaa ccab ccac ccad ccba ccbc ccca cccb cccc cccl ccdc ccdh cced ccee ccel ccha cche cchl ccla cclc cd-e cdaa cdac cdad cdba cdda cddb cddl cdec ceac cead ceal ceba cec- ceca cece ceda cedd cede ceeb ceec ceel cehl cel- cela celc cele cell chaa chab chac chad chae chah chal chca chce chch chea cheb chec ched chee cheh chel chha chlc clab clad clcd cldc clea clec cled clee daab daad daae daal daba dabb daca dace dada dade daeb daha dahe dahl dala dale dall dbcc dcbc dcca dccb dccc dccl dcdb dche dddd ddlc deac dead deae deal deba debe dec- deca decc decd dece decl deda dedd dede deeb deed deel deha dela deld dele dell dhaa dhad dhal dhec dhed dhee dlab dlbd dlha e-cl e-la eaba eabh eaca eacc each eada eadb eadd eaec eala ealc eald eale ebac ebal ebba ebbc ebcc ebed ebel ebla ecaa ecac ecad ecal ecbc ecbe ecca eccb eccc ecce eccl ecdc ecdl eced echa eche echl ecla edac edad edah edca edda eddc edde ede- edea edeh edel edla edle eeca eede eeea eeee eele ehaa ehcc ehdd ehea eheh ehel ehle el-b elab elac elad elah elal elba elbe elca elcb elce elch elda elde elea elec eled elee eleh ella elle haab haad haal haba habe hace hada hade hadh hadl haec haed haha hal- hala halb hald hale hall hbcd hcbc hcca hccb hccc hcch hdca hdda head heah heal hebb hebe heca hech heda hedd hede heeb heed heel hehe hela held hele hell hhaa hhcl hhhh hhla hlah hlde laaa laac laad laal laba labe laca lacc lace lach lacl lada ladd lade lael laha lahe lala lald lale lall lbcc lcac lcad lcbc lcca lccc lcce lcdd lchc ldha leaa lead leah leal leba lebd leca lece lech leda lede leea leed leel lehe lela lele lell lhec lhee lhhh llcc lldb lldc lllc llll