a-a a-b a-t aaa aab aan aar aas aat ab- aba abb abn abr abs abt an- ana anb ann anr ans ant ar- ara arb arn arr ars art as- asa asb asn asr ass ast at- ata atb atn atr ats att baa bab ban bar bas bat bba bbb bbn bbr bbs bbt bna bnb bnn bnr bns bnt bra brb brn brr brs brt bsa bsb bsn bsr bss bst bta btb btn btr bts btt naa nab nan nar nas nat nba nbb nbn nbr nbs nbt nna nnb nnn nns nnt nra nrb nrn nrr nrs nrt nsa nsb nsn nsr nss nst nta ntb ntn ntr nts ntt ra- raa rab ran rar ras rat rba rbb rbn rbr rbs rbt rna rnb rnn rnr rns rnt rra rrb rrn rrr rrs rrt rsa rsb rsn rsr rss rst rta rtb rtn rtr rts rtt saa sab san sar sas sat sba sbb sbn sbr sbs sbt sna snb snn snr sns snt sr- sra srb srn srr srs srt ss- ssa ssb ssn ssr sss sst sta stb stn str sts stt taa tab tan tar tas tat tba tbb tbn tbr tbs tbt tna tnb tnn tnr tns tnt tra trb trn trr trs trt tsa tsb tsn tsr tss tst tta ttb ttn ttr tts ttt

-ana aaaa aaab aaan aaar aaas aaba aabb aabt aana aara aars aart aasa aass aast aata aatt abaa abab aban abar abas abat abb- abba abbb abbr abbs abbt abra abrs abs- absa abss abta abts ana- anaa anab anan anar anas anat anba anbb anna annb anns annt ansa ant- anta antr ants antt arab aran arar aras arat arba arbs arna arns arnt arr- arra arrr arrs arrt ars- arsa arst arta artr arts asaa asab asan asar asas asat asba asra asrs assa assn assr asss asst asta astb astr asts at-t ataa atab atan atar atas atat atbs atna atns atra atrn atsb atst atta attn attr atts baaa baan baar baas baat baba babb babr babs bana bann banr bans bant bar- bara barb barn barr bars bart basa bass bast bata batn bats batt bbas bbbb bbbs bnas bnrr bnss bnta brab bran bras brat brna brns brrr brrs brsb brsr brst bsaa bsas bsat bsns bsra bsts btaa btan btrt btss bttb naaa naab naan naar naas naat naba nabs nan- nana nanb nann nans nant nara narn narr nars nart nas- nasa nasb nasr nass nast nata nats natt nbaa nbar nbas nnnn nnsa nnss nntn nrab nras nrna nrsa nrta nrts nsaa nsar nsna nsnr nsra nssa nssb nssr nsss nsts ntsb ntss nttr raab raan raas raat raba rabb rabs rana rann rans rant rara rarb rars rasa rass rast rata rats ratt rbbb rbbr rbbs rbss rbst rnas rnbr rnnt rras rrat rrna rrrr rsaa rsna rsnn rsnr rssa rsts rtan rtas rtns rtss rtts saab saan saar saas saat saba sabb sabr sabs sana sann sanr sans sant sara sarn sarr sars sart sasa sass sast sata satb satn satr sats satt sbaa sbar sbas sbbs sbsa sbst sbtn snab snar snas snat snba snns snra snrs sntr sras srna srnn srta srtr ssaa ssab ssan ssas ssat ssbn ssbr ssns ssra ssrs sssa sssb ssss ssta sstb ssts stab stan star stas stat stbs stnn stnr stns stra strn strs stss sttr taa- taan taar taas taat taba tabb tabs tana tann tans tant tara tarb tarn tarr tars tart tasa tasb tasr tass tast tata tatb tatr tats tatt tbar tbas tbbs tbrb tbst tbta tnts traa trab tran tras trat trna trra trst trtr tsaa tsar tsat tsna tssa tssr tsst tsts ttab ttbb ttss tttt

-aaa- -stan aaaas aaasa aaass aaata aabaa aabba aabra aanat aarna aarts aasra aatsr abaab ababa ababs abana abann abara abarn abasa abass abban abbar abbas abbat abbrs abran abrar abras absar abstr abtaa abtar anaba anana anant anara anart anasa anass anata anats anban anbar annan annar annas annat anras ansan ansar antar antas antna antr- antra ar-ab araat arab- araba arabs arana arans arant arara arars arass arata arbab arbar arbas arbat arnan arnar arnas arran arras arsan arsat artar artas artat asaba asana asara asasa asats asnan asnas asrar assab assan assas assat assns assts astab astan astar astas astat astr- astra atana atara atars atats atbar atbat atnaa atrab atran atras atrst attan attar attas attns attra baarn baars baart baata baban babar babas babbs babns babra banan banar banas banat banba banna banns bansa banta bants baraa barab baran barar baras barat barba barbs barna barns barra barrs barsa barss barst barta barts basab basan basar basna basra bassa basta basts batab batan batar batas batat batna batns batra batsa batta batts bbart braas braat brana brann brans brant brasa brass brast brats bratt brrar brrrr bsaba bstar btr-t naans naast naats naban nabar nabas nabat nabba nabts nanan nanas nann- nanna nanta naran naras narat narra narta nasaa nasan nasar nasat nasba nassa nassr nasta nasts natan natas natr- natra natta nrnas nsaba nsasa nstar nstnt ra-ra raaba raasa rabab raban rabas rabat rabba rabta ranas ranat ranna ranns ranst ranta rants rasan rasar rasas rasat rasna rasra rassa rasta ratan ratas ratba ratna ratra ratta rnsts rrnas rrsta rttns sa-ra saaba saabs saana saans saara saasa saban sabar sabas sabat sabra sabsa sanaa sanar sanas sanat sanba sanna sanns sansa santa sants saraa sarab saran saras sarat sarna sarns sarra sarsa sarta sarts sasan sasna sassa sat-b satan satat satna satra satta sbata sbrna snabs snart snasa snast snbrn srb-a srnas srtas ssats ssrna sssrb sssss sstar staab staan staar staat stabs stana stann stans stant stara starb starn starr stars start stat- stata stats stran strat strba strrs sttns sttsn t-ara t-bar ta-ra ta-ta taana taart taast taban tabar tabas tabat tabra tann- tanna tansa tanta taran tarar taras tarat tarna tarns tarra tars-