a-a a-b aaa aab aad aak aan aar aas ab- aba abb abd abk abn abr abs ad- ada adb add adk adn adr ads aka akb akd akk akn akr aks an- ana anb and ank ann anr ans ar- ara arb ard ark arn arr ars as- asa asb asd ask asn asr ass baa bab bad bak ban bar bas bba bbb bbd bbk bbn bbr bbs bda bdb bdd bdk bdr bds bka bkb bkk bkn bkr bks bna bnb bnd bnk bnn bnr bns bra brb brd brk brn brr brs bsa bsb bsd bsk bsn bsr bss daa dab dad dak dan dar das dba dbb dbd dbk dbn dbr dbs dda ddb ddd ddk ddn ddr dds dka dkb dkk dkr dks dna dnb dnd dnk dnn dnr dns dra drb drd drk drn drr drs dsa dsb dsd dsk dsn dsr dss ka- kaa kab kad kak kan kar kas kba kbb kbd kbk kbn kbr kbs kda kdb kdk kdr kds kkb kkk kkn kkr kks kn- kna knd knk knn knr kra krd krk krn krr krs ksa ksb ksd ksk ksn ksr kss naa nab nad nak nan nar nas nba nbb nbd nbk nbn nbr nbs nda ndb ndd ndk ndn ndr nds nka nkk nkn nkr nks nna nnb nnk nnn nns nra nrb nrd nrk nrn nrr nrs nsa nsb nsd nsk nsn nsr nss ra- raa rab rad rak ran rar ras rba rbb rbd rbk rbn rbr rbs rda rdb rdd rdn rdr rds rkb rkk rks rna rnb rnd rnn rnr rns rra rrb rrd rrk rrn rrr rrs rsa rsb rsd rsk rsn rsr rss saa sab sad sak san sar sas sba sbb sbd sbk sbn sbr sbs sda sdb sdd sdk sdn sdr sds sk- ska skb skd skk skr sks sna snb snd snk snn snr sns sr- sra srb srd srk srn srr srs ss- ssa ssb ssd ssk ssn ssr sss

-ana a-ak aaaa aaab aaad aaan aaar aaas aaba aabb aabd aada aads aaka aana aand aara aard aars aasa aasd aass abaa abab abad abak aban abar abas abb- abba abbb abbr abbs abda abra abrs abs- absa absd abss adaa adab adad adak adan adar adas adba adda addd addn addr adds adna adns adra adrs adsa adsr adss akaa akan akar akas akdn akka akna akr- akra aksa ana- anaa anab anad anak anan anar anas anba anbb and- anda andr ands ank- anka anna annb anns ansa ansd arab arad arak aran arar aras arba arbs arda ards arka arks arna arnd arnk arns arr- arra arrk arrr arrs ars- arsa arsd arsk asaa asab asad asak asan asar asas asba asda asds aska askr asks asra asrs assa assd assk assn assr asss baaa baad baak baan baar baas baba babb babr babs bada badb badd badr bads bak- baka bakr baks bana band bank bann banr bans bar- bara barb bard bark barn barr bars basa bask bass bbad bbas bbbb bbbs bbdd bd-r bdna bdsd bnas bnrr bnss brab brad brak bran bras brda brds brka brkb brna brns brrr brrs brsb brsr bsaa bsas bsbd bsnd bsns bsra bsrd bssd d-na daab daad daan daar daas daba dabb dabs dada dads daka daks dana dand dank dann danr dans dara darb dard dark darn darr dars dasa dasb dasd dask dass dbar dbas dbrn dbrs dbsa dbss dddd ddss dkba dnaa dnab dnad dnan dnas dnsa draa drab drad drak drar dras drba drda drna drra drrs drsa dsba dsda dsdr dsrr dssa dssn kaaa kaab kaak kaan kaar kaas kaba kabb kabd kabr kad- kada kadd kadr kads kaka kakk kakn kaks kana kanb kand kann kans kara karb kard kark karn karr kars kas- kasa kasb kask kasn kasr kass kbaa kbab kbad kbak kbar kbas kbba kbbb kbbd kbbk kbbr kbbs kbdb kbdn kbdr kbds kbkb kbkk kbkr kbna kbnd kbnn kbnr kbra kbrb kbrd kbrk kbrn kbsa kbsb kbsk kbsn kbsr kbss kdaa kdab kdad kdak kdar kdbb kdbn kdbr kdbs kddb kddd kddk kddr kdka kdkb kdkd kdkk kdkn kdkr kdna kdnd kdnk kdnn kdnr kdns kdrb kdrs kdsd kdsk kdsn kdsr kdss kkaa kkan kkar kkba kkbb kkbd kkbn kkbr kkbs kkda kkdd kkkk kknb kknd kknn kkns kkrb kkrk kkrn kkrr kkrs kksa kksd kksn kksr kkss knaa knab knan knar knas knba knbb knbn knbr knda kndb kndd kndk kndn kndr knkk knnb knnd knnk knnr knns knrb knrk knrs knsa knsb knsd knsk knsn knsr knss krab krad krak kran krar kras krba krbb krbd krbk krbr krda krdd krdr krds krka krkd krkk krkn krkr krks krna krnb krnd krnk krnn krrb krrk krrn krrr krrs krsa krsd krsk krsn krsr krss ksab ksak ksan ksar ksas ksba ksbn ksbr ksbs ksdk ksdn ksdr ksds kska kskb kskd kskk kskn kskr ksks ksna ksnb ksnd ksnk ksnn ksnr ksns ksra ksrb ksrn ksrr ksrs kssa kssn kssr ksss naaa naab naad naan naar naas naba nabk nabs nada nadk nadr nads naka naks nan- nana nanb nand nann nans nara nard nark narn narr nars nas- nasa nasb nasd nask nasr nass nbaa nbad nbak nbar nbas ndaa ndak ndas nddb ndna ndss nndb nnnn nnsa nnss nrab nras nrds nrna nrrd nrsa nsaa nsar nsds nskk nsna nsnr nsra nsrd nssa nssb nssr nsss raab raad raak raan raas raba rabb rabk rabs rada radd radr rads raka rakk rana rand rank rann rans rara rarb rark rars rasa rasd rask rass rbbb rbbr rbbs rbds rbsd rbss rdas rdna rkss rnas rnbr rnds rrad rras rrna rrrr rsaa rsdd rsds rsna rsnn rsnr rssa saab saad saak saan saar saas saba sabb sabr sabs sada sadb sadd sadr sads saka sakb sakk saks sana sand sank sann sanr sans sara sard sark sarn sarr sars sasa sasd sask sass sbaa sbar sbas sbbs sbds sbrk sbsa