-ana a-ak aaaa aaab aaac aaad aaal aaan aaas aaba aabb aabc aabd aabl aaca aacb aacc aacd aack aacl aacn aacs aada aadc aads aaka aala aalc aald aall aals aana aand aasa aasc aasd aass abaa abab abac abad abak abal aban abas abb- abba abbb abbs abca abcb abcc abcd abcl abcn abcs abda abla abls abs- absa absd absl abss acaa acab acac acad acan acas acba acbl acca accc accd accs acda acdb acdc acds ackd acks acla aclc acls acsa acsc acsd acsl acss adaa adab adac adad adak adal adan adas adba adbc adcc adcs adda addc addd addl addn adds adls adna adns adsa adsl adss akaa akal akan akas akca akdn akka akna aksa alaa alac alad alak alal alan alas alb- alba albc albs alca alcc alcs ald- alda aldl alds alk- alka alkb alkd all- alla alll alln alls alna alsa alsc alsn ana- anaa anab anac anad anak anal anan anas anba anbb anbl anca ancc and- anda andl ands ank- anka anla anlc anln anna annb anns ansa ansd asaa asab asac asad asak asal asan asas asba asc- asca ascb ascc ascl asda asdl asds aska asks asla asnc asnl assa assc assd assk assl assn asss baaa baad baak baal baan baas baba babb babs bac- baca bacc back bacn bacs bada badb badd bads bak- baka bakl baks bala balc bald balk ball bals bana banc band bank bann bans basa basc bask bass bbad bbas bbbb bbbs bbdd bblb bbls bcaa bcas bcbc bcbs bcca bccc bccl bccs bcda bcds bcsa bcsc bcsl bcsn bcss bdbc bddc bdls bdna bdsd blaa blab blac blad blak blan blas bldc blkb blkd blls blss bnas bnss bsaa bsac bsas bsbd bscs bsdl bslc bsnd bsns bssc bssd c-cd caaa caab caac caal caan caas caba cabs cac- caca cacc cack cada cadc cadd cads caka cala calc cald calk call cals cana canc cand cank cann cans casa casb casc casd cask casl cass cbac cbal cbbc cbbs cbca cbcc cbcl cbcn cbcs cbdb cbdc cbdn cbds cbka cbkl cbkn cblb cblc cbln cbna cbnd cbsa cbsc cbsn ccaa ccab ccac ccad ccas ccba ccbc ccbn ccca cccb cccc cccl cccs ccdc ccdn ccds ccla cclc ccls ccna ccnb ccnc ccns ccsa ccsd ccsl ccsn ccss cdaa cdac cdad cdba cdcs cdda cddb cddl cdls cdna cdnb cdnc cdss ckac ckan ckbc ckck ckcl ckcs ckln cknb cknc ckns cksa cksb cksl clab clad clan clas clcd cldc clsa clsc cnaa cnac cnas cnbc cnbl cnda cndd cnna cnsa cnsl cnss csaa csab csac csak csas cscb cscc cscd cscl cscs csda csdb csdn cska csks csla csld cssa cssd d-na daab daad daal daan daas daba dabb dabs daca dacs dada dads daka daks dala dalk dall dals dana dand dank danl dann dans dasa dasb dasc dasd dask dasl dass dbas dbcc dbcs dbls dbnl dbsa dbss dcas dcbc dcca dccb dccc dccl dccs dcdb dcds dcls dcns dcsc dcss dddd ddlc ddss dkba dkdc dlab dlbd dlcs dnaa dnab dnac dnad dnan dnas dncs dnsa dnsc dsac dsba dsbc dscc dscn dscs dsda dsls dssa dssc dssn kaaa kaab kaak kaal kaan kaas kaba kabb kabc kabd kacb kacc kacd kacl kacs kad- kada kadd kadl kads kaka kakc kakk kakn kaks kala kalb kalc kald kalk kall kaln kals kana kanb kand kann kans kas- kasa kasb kasc kask kasl kasn kass kbaa kbab kbac kbad kbak kbal kbas kbba kbbb kbbc kbbd kbbk kbbl kbbs kbca kbcb kbck kbcl kbcs kbdb kbdl kbdn kbds kbkb kbkk kbkl kbla kblb kbld kbll kbls kbna kbnd kbnl kbnn kbsa kbsb kbsk kbsn kbss kcaa kcab kcac kcad kcal kcas kcba kcbc kcbd kcbk kcbl kcbs kcca kccb kccc kccd kcck kccl kcda kcdc kcdd kcds kckc kckk kckl kckn kcla kclc kclk kcll kcln kcls kcnb kcnd kcns kcsa kcsb kcsc kcsd kcsn kcss kdaa kdab kdac kdad kdak kdal kdbb kdbl kdbn kdbs kdca kdcc kdcd kddb kddc kddd kddk kddl kdka kdkb kdkd kdkk kdkn kdla kdlb kdlc kdld kdll kdls kdna kdnd kdnk kdnn kdns kdsc kdsd kdsk kdsl kdsn kdss kkaa kkac kkal kkan kkba kkbb kkbd kkbl kkbn kkbs kkcb kkcd kkck kkcl kkcn kkcs kkda kkdc kkdd kkdl kkkk kklb kklc kkld kkll kkln kkls kknb kknd kknn kkns kksa kksd kksn kkss klaa klab klac klad klak klal klan klas klbb klbc klbd klbl klbn klbs klca klcb klcc klcd klck klcl klcn klcs kldc kldd kldn klds klka klkc klkk klkl klkn klks klla kllb kllc kllk klls klnc klnd klnn klsa klsc klsd klsn knaa knab knac knal knan knas knba knbb knbc knbn knca kncb knck kncn knda kndb kndc kndd kndk kndl kndn knkk knla knlb knlc knls knnb knnd knnk knns knsa knsb knsc knsd knsk knsl knsn knss ksab ksac ksak ksal ksan ksas ksba ksbc ksbl ksbn ksbs ksca kscb ksck kscl kscn kscs ksdc ksdk ksdl ksdn ksds kska kskb kskd kskk kskn ksks ksla kslb kslc ksld kslk ksll ksln ksna ksnb ksnc ksnd ksnk ksnl ksnn ksns kssa kssl kssn ksss laaa laac laad laak laal laan laas laba labs laca lacc lack lacl lacs lada ladd lads laka laks lala lald lall lan- lana lanc land lank lann lans lasa lasd lask lass lbcc lbds lbsc lcac lcad lcbc lcca lccc lccs lcdd lcds lcls lcsc lcsd ldls lkab lkal lkan llan llbs llcc llcs lldb lldc llds llks lllc llll lndn lnnk lscb lscs lsds lsla lssa naaa naab naac naad naal naan naas naba nabc nabk nabl nabs naca nacc nacd nack nacl nacs nada nadc nadk nads naka naks nala nalc nald nall nals nan- nana nanb nand nann nans nas- nasa nasb nasc nasd nask nasl nass nbaa nbad nbak nbas nbbc nbca nbcc nbcs ncaa ncac ncba ncbc ncbs ncca nccc nccn nccs ncda ncdc ncdn ncds nclc ncln