-ana aaaa aaab aaac aaan aaar aaas aaba aabb aabc aabt aaca aacb aacc aacn aaco aacr aacs aact aana aaon aaoo aara aarc aaro aars aart aasa aasc aass aast aata aatc aatt abaa abab abac aban abar abas abat abb- abba abbb abbo abbr abbs abbt abca abcb abcc abcn abcr abcs abct aboa abob abon aboo abor abos abot abra abrc abro abrs abs- absa abss abta abts ac-t acaa acab acac acan acar acas acat acba acca accc acco accs acct acoa acon acor acos acot acr- acra acrc acro acrr acrs acsa acsc acss acst acta actc acto acts actt ana- anaa anab anac anan anao anar anas anat anba anbb anbo anca ancc anco anct anna annb anno anns annt ano- anoa anon anor anos anrc ansa anso ant- anta anto antr ants antt aoba aoca aocs aonb aono aont aora aorb aorn aors aort aoss aotc arab arac aran arar aras arat arba arbs arc- arca arco arcs arct arna arno arns arnt aroa arob aron aroo aror aros arr- arra arrc arro arrr arrs arrt ars- arsa arsc arso arst arta artc arto artr arts asaa asab asac asan asao asar asas asat asba asbo asc- asca ascb ascc asco ascr asct asnc asno asob asoc ason asor asos asot asra asrc asro asrs assa assc assn asso assr asss asst asta astb astc asto astr asts at-t ataa atab atac atan atar atas atat atbs atca atcc atco atcr atcs atna atno atns atob atoc aton ator atos atot atra atrc atrn atro atsb atsc atst atta attn atto attr atts baaa baan baar baas baat baba babb babo babr babs bac- baca bacc bacn baco bacs bact bana banc bann bano banr bans bant baon baos bar- bara barb barc barn baro barr bars bart basa basc baso bass bast bata batc batn bato bats batt bbas bbbb bbbs bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bccs bcor bcos bcra bcrs bcsa bcsc bcsn bcss bctc bcts bnas bnoc bnor bnrr bnss bnta boab boac boan boar boas boat boba bobb bobo bobs boca boco bocs bona bonc bonn bono bons bont boob booc boon boor boos boot bor- bora born boro borr bors bort bosa bosc bosn boso boss bost bota botb botn boto bots bott brab brac bran brao bras brat brca brcb brna brno brns broa brob broc bron broo bror bros brot brrr brrs brsb brsr brst brtc bsaa bsac bsas bsat bscs bsns bson bsos bsra bssc bsts btaa btan btcc btcs btob btor btrc btrt btss bttb c-bo caaa caab caac caan caas caat caba cabo cabs cac- caca cacc caco cacr cana canc cann cano cans cant caor caos cara carb carc carn caro carr cars cart casa casb casc caso casr cass cast cat- cata catb catc cato cats catt cbac cbar cbat cbbc cbbs cbca cbcc cbcn cbcr cbcs cbct cbna cbot cbrn cbrt cbsa cbsc cbsn cbta cbtc ccaa ccab ccac ccar ccas ccat ccba ccbc ccbn ccca cccb cccc cccs ccna ccnb ccnc ccnr ccns ccob ccoc ccra ccrc ccrs ccrt ccsa ccsn ccss ccst cctb cctc cctt cnaa cnac cnas cnbc cnco cnna cnrc cnrr cnrt cnsa cnss cnta cntc cntr coan coas coat coba cobb cobo cobs coca coco coct con- cona conc conn cono cons cont coob coon coos coot cor- cora corb corc corn coro corr cors cort cosa cosc coso coss cost cota cotb cotc cotn coto cots cott crab crac cran crar cras crat crbc crca crcc crcr crna crns crob croc cron croo cror crot crrt crsa crss crst crtc crts csaa csab csac csao csar csas csat cscb cscc csco cscr cscs csob csor csos csot csra csrc csrs cssa cssr csta cstc csto cstr csts ctab ctan ctba ctbs ctca ctns ctor ctos ctot ctrc ctrn ctrs ctsa ctsc ctsn ctss ctta cttn ctts naaa naab naac naan naar naas naat naba nabc nabo nabs naca nacc naco nacs nan- nana nanb nann nano nans nant naoc naor naos naot nara narc narn naro narr nars nart nas- nasa nasb nasc naso nasr nass nast nata natc nato nats natt nbaa nbar nbas nbbc nbbo nbca nbcc nbco nbcs ncaa ncac ncar ncat ncba ncbc ncbs ncca nccc nccn nccr nccs ncct ncna ncnc ncoa ncoc ncor ncos ncra ncrc ncsa ncsc ncss ncst ncta nctc nctr nnnn nnos nnot nnsa nnss nntn noaa noac noat noba nobc nobo nobs noco nocs noct non- nona nonn nono nons nont noo- noob noon nooo noor noos noot nor- nora norb norc norn noro norr nors nort nos- nosa noss nost not- nota noto nots nott nrab nras nrca nrcs nrna nroc nron nrrc nrsa nrsc nrta nrts nsaa nsac nsar nsbo nsca nscc nscs nsna nsnr nsos nsra nsrc nssa nssb nssc nsso nssr nsss nstc nsts ntbc ntcc ntrc ntsb ntsc ntss ntto nttr oara oars oasc oass oast oats oban obas obba obbo obon obor obos obot obra obro obsn obsr obss obst obts ocab ocac ocan ocas ocat ocbc occa occc occn occt ocna ocon ocos ocra ocro ocrr ocrs ocsa oct- octa octo octs onab onan onar onas onat onc- onca onco onct onna onno onon onor onos onra onsc onso onst ont- ontc onto ooaa ooba oocr oona oons oont oooo ooos oora oort oosa oost ootb oots orab orac oran orao orar oras orat orba orbb orbo orbs orca orco orcs orna ornc orno orns oro- oron oror oros orot orra orro orrs orsa orso orta ortc orto orts osan osar osas osat osba osca oscc osco osno osnr osoo osor osos osro ossa ossb osso osta ostc ostr osts otac otan otar otas otbs oto- oton otoo otor otos otra otro otrs otsa otso otta otto otts raab raan raas raat raba rabb rabo rabs rac- raca racc raco racs ract rana ranc rann rano rans rant raob raoc raos rara rarb