a-a a-b a-t aaa aab aak aan aar aas aat ab- aba abb abk abn abr abs abt aka akb akk akn akr aks an- ana anb ank ann anr ans ant ar- ara arb ark arn arr ars art as- asa asb ask asn asr ass ast at- ata atb atn atr ats att baa bab bak ban bar bas bat bba bbb bbk bbn bbr bbs bbt bka bkb bkk bkn bkr bks bkt bna bnb bnk bnn bnr bns bnt bra brb brk brn brr brs brt bsa bsb bsk bsn bsr bss bst bta btb btk btn btr bts btt k-t ka- kaa kab kak kan kar kas kat kba kbb kbk kbn kbr kbs kkb kkk kkn kkr kks kkt kn- kna knk knn knr knt kra krk krn krr krs krt ksa ksb ksk ksn ksr kss kst kta ktb ktk ktn ktr kts ktt naa nab nak nan nar nas nat nba nbb nbk nbn nbr nbs nbt nka nkk nkn nkr nks nkt nna nnb nnk nnn nns nnt nra nrb nrk nrn nrr nrs nrt nsa nsb nsk nsn nsr nss nst nta ntb ntk ntn ntr nts ntt ra- raa rab rak ran rar ras rat rba rbb rbk rbn rbr rbs rbt rkb rkk rks rkt rna rnb rnn rnr rns rnt rra rrb rrk rrn rrr rrs rrt rsa rsb rsk rsn rsr rss rst rta rtb rtk rtn rtr rts rtt saa sab sak san sar sas sat sba sbb sbk sbn sbr sbs sbt sk- ska skb skk skr sks skt sna snb snk snn snr sns snt sr- sra srb srk srn srr srs srt ss- ssa ssb ssk ssn ssr sss sst sta stb stk stn str sts stt taa tab tak tan tar tas tat tba tbb tbk tbn tbr tbs tbt tka tkb tkk tkr tks tkt tna tnb tnk tnn tnr tns tnt tra trb trk trn trr trs trt tsa tsb tsk tsn tsr tss tst tta ttb ttk ttn ttr tts ttt

-ana a-ak aaaa aaab aaan aaar aaas aaba aabb aabt aaka aana aara aars aart aasa aass aast aata aatk aatt abaa abab abak aban abar abas abat abb- abba abbb abbr abbs abbt abra abrs abs- absa abss abta abts akaa akan akar akas akka akna akr- akra aksa akst ana- anaa anab anak anan anar anas anat anba anbb ank- anka anna annb anns annt ansa ant- anta antr ants antt arab arak aran arar aras arat arba arbs arka arks arna arnk arns arnt arr- arra arrk arrr arrs arrt ars- arsa arsk arst arta artr arts asaa asab asak asan asar asas asat asba aska askr asks askt asra asrs assa assk assn assr asss asst asta astb astr asts at-t ataa atab atak atan atar atas atat atbs atka atkt atna atns atra atrk atrn atsb atst atta attn attr atts baaa baak baan baar baas baat baba babb babr babs bak- baka bakr baks bakt bana bank bann banr bans bant bar- bara barb bark barn barr bars bart basa bask bass bast bata batn bats batt bbas bbbb bbbs bnas bnrr bnss bnta brab brak bran bras brat brka brkb brna brns brrr brrs brsb brsr brst bsaa bsas bsat bskt bsns bsra bsts btaa btan btrt btss bttb kaaa kaab kaak kaan kaar kaas kaat kaba kabb kabr kaka kakk kakn kaks kakt kana kanb kann kans kant kara karb kark karn karr kars kart kas- kasa kasb kask kasn kasr kass kast kat- kata katb katk katn katr kats katt kbaa kbab kbak kbar kbas kbat kbba kbbb kbbk kbbr kbbs kbbt kbkb kbkk kbkr kbna kbnn kbnr kbra kbrb kbrk kbrn kbrt kbsa kbsb kbsk kbsn kbsr kbss kbst kbta kbtb kbtk kbtn kbtr kbts kbtt kkaa kkan kkar kkat kkba kkbb kkbn kkbr kkbs kkbt kkkk kknb kknn kkns kknt kkrb kkrk kkrn kkrr kkrs kkrt kksa kksn kksr kkss kkst kktk kkts knaa knab knan knar knas knat knba knbb knbn knbr knbt knkk knkt knnb knnk knnr knns knrb knrk knrs knsa knsb knsk knsn knsr knss knst kntk kntn kntr knts krab krak kran krar kras krat krba krbb krbk krbr krbt krka krkk krkn krkr krks krna krnb krnk krnn krnt krrb krrk krrn krrr krrs krrt krsa krsk krsn krsr krss krst krta krtk krtn krtr krts ksab ksak ksan ksar ksas ksat ksba ksbn ksbr ksbs kska kskb kskk kskn kskr ksks ksna ksnb ksnk ksnn ksnr ksns ksnt ksra ksrb ksrn ksrr ksrs ksrt kssa kssn kssr ksss ksst ksta kstb kstk kstn kstr ksts kstt ktaa ktak ktan ktar ktas ktat ktba ktbb ktbn ktbr ktbt ktkb ktkk ktkn ktkr ktks ktkt ktna ktnk ktnn ktns ktnt ktrb ktrk ktrn ktrr ktrs ktrt ktsa ktsn ktsr ktst kttk kttn kttr ktts kttt naaa naab naan naar naas naat naba nabk nabs naka naks nan- nana nanb nann nans nant nara nark narn narr nars nart nas- nasa nasb nask nasr nass nast nata nats natt nbaa nbak nbar nbas nknt nktr nnnn nnsa nnss nntn nrab nras nrna nrsa nrta nrts nsaa nsar nskk nsna nsnr nsra nssa nssb nssr nsss nsts ntsb ntss nttr raab raak raan raas raat raba rabb rabk rabs raka rakk rakt rana rank rann rans rant rara rarb rark rars rasa rask rass rast rata ratk rats ratt rbbb rbbr rbbs rbss rbst rkss rkts rnas rnbr rnnt rras rrat rrna rrrr rsaa rsna rsnn rsnr rssa rsts rtan rtas rtkn rtns rtss rtts saab saak saan saar saas saat saba sabb sabr sabs saka sakb sakk saks sana sank sann sanr sans sant sara sark sarn sarr sars sart sasa sask sass sast sata satb satn satr sats satt sbaa sbar sbas sbbs sbrk sbsa sbst sbtk sbtn skab skan skar skat skn- skra skrt skss snab snak snar snas snat snba snns snra snrk snrs sntr sras srna srnn srta