a-a a-b a-t aaa aab aag aan aar aas aat ab- aba abb abg abn abr abs abt ag- aga agb agg agn agr ags agt an- ana anb ang ann anr ans ant ar- ara arb arg arn arr ars art as- asa asb asg asn asr ass ast at- ata atb atg atn atr ats att baa bab bag ban bar bas bat bba bbb bbg bbn bbr bbs bbt bga bgb bgg bgn bgr bgs bgt bna bnb bng bnn bnr bns bnt bra brb brg brn brr brs brt bsa bsb bsg bsn bsr bss bst bta btb btg btn btr bts btt gaa gab gag gan gar gas gat gba gbg gbn gbr gbs gbt gga ggb ggg ggn ggr ggs ggt gna gnb gnn gnr gns gnt gra grb grg grn grr grs grt gsa gsb gsg gsn gsr gss gst gta gtb gtg gtn gtr gts gtt naa nab nag nan nar nas nat nba nbb nbg nbn nbr nbs nbt nga ngb ngg ngn ngs ngt nna nnb nng nnn nns nnt nra nrb nrg nrn nrr nrs nrt nsa nsb nsg nsn nsr nss nst nta ntb ntg ntn ntr nts ntt ra- raa rab rag ran rar ras rat rba rbb rbg rbn rbr rbs rbt rga rgb rgg rgn rgr rgs rgt rna rnb rng rnn rnr rns rnt rra rrb rrg rrn rrr rrs rrt rsa rsb rsg rsn rsr rss rst rta rtb rtg rtn rtr rts rtt saa sab sag san sar sas sat sba sbb sbg sbn sbr sbs sbt sga sgb sgg sgn sgr sgs sgt sna snb sng snn snr sns snt sr- sra srb srg srn srr srs srt ss- ssa ssb ssg ssn ssr sss sst sta stb stg stn str sts stt taa tab tag tan tar tas tat tba tbb tbg tbn tbr tbs tbt tga tgb tgg tgn tgr tgs tgt tna tnb tng tnn tnr tns tnt tra trb trg trn trr trs trt tsa tsb tsg tsn tsr tss tst tta ttb ttg ttn ttr tts ttt

-ana aaaa aaab aaan aaar aaas aaba aabb aabt aana aang aara aars aart aasa aass aast aata aatt abaa abab abag aban abar abas abat abb- abba abbb abbr abbs abbt abra abrs abs- absa abss abta abts agag agan agar agas agat agba agga agna agns agra agsa agsg agst agta agtr agts ana- anaa anab anag anan anar anas anat anba anbb ang- anga angs anna annb anns annt ansa ant- anta antr ants antt arab arag aran arar aras arat arba arbs arga argb args arna arng arns arnt arr- arra arrg arrr arrs arrt ars- arsa arst arta artr arts asaa asab asag asan asar asas asat asba asgt asra asrg 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 baga bagg bagn bags bagt bana bang bann banr bans bant bar- bara barb barg barn barr bars bart basa bass bast bata batn bats batt bbas bbbb bbbs bbga bbng bbrg bgan bggs bgst bnas bnrr bnss bnta brab brag bran bras brat brna brns brrr brrs brsb brsr brst bsaa bsas bsat bsgs bsns bsra bsts btaa btan btrt btss bttb gaar gaas gaba gabb gabr gabs gabt gaga gagg gags gana gang gann gans gant gara garb garg garn garr gars gart gasa gasb gasr gass gast gata gatr gats gatt gbag gban gbas gbbs ggbt gggg ggrn ggss gnaa gnar gnas gnat gnrr grab gran gras grat grbr grrr grrs grss gsab gsat gstr gtaa gtbr gtta naaa naab naag naan naar naas naat naba nabs naga nags nan- nana nanb nang nann nans nant nara narg narn narr nars nart nas- nasa nasb nasr nass nast nata nats natt nbaa nbar nbas ngab ngan ngas ngns ngsn ngtn ngts nngn nnnn nnsa nnss nntn nrab nras nrna nrsa nrta nrts nsaa nsar nsna nsnr nsra nssa nssb nssr nsss nsts ntsb ntss nttr raab raag raan raas raat raba rabb rabs raga ragg rags rana rang rann rans rant rara rarb rars rasa rass rast rata rats ratt rbbb rbbr rbbs rbss rbst rgan rgba rgtr rgts rnag rnas rnbr rngs rnnt rras rrat rrna rrrr rsaa rsgb rsna rsnn rsnr rssa rsts rtan rtas rtgs rtns rtss rtts saab saag saan saar saas saat saba sabb sabr sabs saga sagg sags sagt sana sang sann sanr sans sant sara sarg sarn sarr sars sart sasa sass sast sata satb satg satn satr sats satt sbaa sbar sbas sbbs sbsa sbst sbtn sgaa sggg sggs sgss sgta sgts snab snag snar snas snat snba snns snra snrs sntr sras srgb srna srnn srta srtr ssaa ssab ssan ssas ssat ssbn ssbr ssgs ssgt ssns ssra ssrg ssrs sssa sssb ssss ssta sstb ssts stab stag stan star stas stat stbs stgr stng stnn stnr stns stra strn strs stss sttr taa- taag taan taar taas taat taba tabb tabs taga tagg tags tana tang tann tans tant tara tarb targ tarn tarr tars tart tasa tasb tasr tass tast tata tatb tatr tats tatt tbar tbas tbbs tbgs tbrb tbst tbta tgts tnag tngs tnts traa trab trag tran tras trat trna trng trra trst trtr tsaa tsar tsat tsgt tsna tssa tssg tssr tsst tsts ttab ttbb ttss tttt

-aaa- -stan aaaas aaarg aaasa aaass aaata aabaa aabba aabga aabra aanat aarna aarts aasra aatsr abaab ababa ababs abaga abana abang abann abara abarn abasa abass abban abbar abbas abbat abbrs abgar abran abrar abras absar abstr abtaa abtar agana agara agarn agars agast agata agats aggag aggar aggat agnar agnat agras agtas anaba anaga anags anana anang anant anara anart anasa anass anata anats anban anbar angar angas angat angra angst annan annar annas annat anras ansan ansar antar