a-be aaaa aaab aaac aaad aaae aaal aaap aaba aabb aabc aabd aabl aabp aaca aacb aacc aacd aace aacl aacp aada aadc aade aaea aaec aaep aala aalc aald aale aall aapa aapc aapl abaa abab abac abad abae abal abap abb- abba abbb abbe abca abcb abcc abcd abcl abcp abda abec abed abee abel abla able abpa abpc abpd abpp acaa acab acac acad acae acap acba acbl acca accc accd acce accp acda acdb acdc acde acdp ace- acea acec aced acel acla aclc acle acpa acpd acpe adaa adab adac adad adae adal adap adba adbc adcc adda addc addd adde addl adea adeb adee adel adle adp- aeac aeap aecb aecl aede aela aelc aelp al-p alaa alac alad alae alal alap alb- alba albc albe alca alcc alce ald- alda alde aldl alea alec aled alee alep all- alla alle alll alpa alpe alpl apac apal apap apba apca apcb apcc apcd apda apdd apea apec aped apel apep apl- apla aple aplp appa appc appd appl baaa baad baal baba babb babe bac- baca bacc bace bada badb badd bade baed bael bala balc bald bale ball bapa bapc bape bapp bbad bbbb bbdd bbeb bblb bcaa bcap bcbc bcbp bcca bccc bccl bcda bcde bcec bcpl bcpp bdbc bddc bdle bdpc bead beal beap beba bebb bebe beca beda bede bedl beeb beed beel beep bela beld bele bell belp blaa blab blac blad blae bldc blea bleb bled blee bpcp bpda bpea bpel c-cd caaa caab caac caal caap caba cabe cac- caca cacc cace cada cadc cadd cade caec cala calc cald cale call calp capa capb capc capd cape capp cbac cbal cbbc cbca cbcc cbce cbcl cbcp cbdb cbdc cbea cbec cbee cblb cblc cbpc cbpp ccaa ccab ccac ccad ccap ccba ccbc ccca cccb cccc cccl cccp ccdc ccdp cced ccee ccel ccla cclc ccpa ccpe ccpl ccpp cd-e cdaa cdac cdad cdba cdda cddb cddl cdec ceac cead ceal ceba cebp cec- ceca cece cecp ceda cedd cede ceeb ceec ceel cel- cela celc cele cell cepa cepc cepe cepp clab clad clap clcd cldc clea clec cled clee clep clpb clpp cpaa cpac cpad cpap cpbc cpca cpce cpdl cpea cpeb cpep cplc cppa cppd daab daad daae daal daap daba dabb dabp daca dace dada dade daeb dala dale dall dapa dape dapp dbcc dbcp dblp dbpc dbpd dcbc dcca dccb dccc dccl dccp dcdb dcpl dddd ddlc deac dead deae deal deap deba debe dec- deca decc decd dece decl deda dedd dede deeb deed deel deep dela deld dele dell delp depa depc depe depp dlab dlbd dpaa dpac dpbc dpcp dpll dppa dppc e-cl e-la eaba eaca eacc eada eadb eadd eadp eaec eala ealc eald eale eapc eapp ebac ebal ebba ebbc ebcc ebed ebel ebla ecaa ecac ecad ecal ecbc ecbe ecca eccb eccc ecce eccl ecdc ecdl eced ecla ecpa ecpd ecpp edac edad edca edda eddc edde eddp ede- edea edel edla edle eeca eede eeea eeee eele el-b el-p elab elac elad elal elba elbe elca elcb elce elda elde elea elec eled elee ella elle elpe epaa epac epad epcc epec epee eple epll eppa eppc eppp laaa laac laad laal laap laba labe laca lacc lace lacl lacp lada ladd lade ladp lael lala lald lale lall lapa lapb lapc lapd lape lapp lbcc lcac lcad lcbc lcca lccc lcce lcdd lcdp lcpa lcpc lcpd lcpl lddp ldpc leaa lead leal leap leba lebd leca lece leda lede leea leed leel leep lela lele lell lepa lepe lepp llcc lldb lldc lldp lllc llll lpac lpda lpec lpla lppl paal paap paba paca pacd pace pada padd pade paea paec paep pala pale pall palp papa papb pape papp pbac pbcc pbed pbpa pcaa pcad pcae pcap pcba pcbc pcca pccc pcce pccl pcea pcep pcll pcpb pcpp pdac pdca pdcp pdea pdlc pdpa peab peac peal peap peba pebl peca pece pecl ped- peda pede peec peed peel peep pel- pela pelb pele pell pepa pepd pepe plaa plab plac plad plap plcc plce ple- plea pleb plec pled plee plpa plpp ppac ppad ppal ppap ppcc ppcd pple pppa pppd pppp