a-ak aaaa aaab aaad aaas aaba aabb aabd aabt aada aads aadt aaka aasa aasd aass aast aata aatk aatt abaa abab abad abak abas abat abb- abba abbb abbs abbt abda abs- absa absd abss abta abts adaa adab adad adak adas adat adba adda addd adds adsa adss adst adta adts akaa akas akka aksa akst asaa asab asad asak asas asat asba asda asds aska asks askt assa assd assk asss asst asta astb asts at-t ataa atab atad atak atas atat atbs atdt atka atkt atsb atst atta atts baaa baad baak baas baat baba babb babs bada badb badd bads bak- baka baks bakt basa bask bass bast bata bats batt bbad bbas bbbb bbbs bbdd bdsd bsaa bsas bsat bsbd bskt bssd bsts btaa btdt btss bttb daab daad daas daba dabb dabs dabt dada dads daka daks dasa dasb dasd dask dass dast data dats datt dbas dbsa dbss dbtt dddd ddss ddts dkba dsba dsda dssa dsst dsts dtaa dtss kaaa kaab kaak kaas kaat kaba kabb kabd kad- kada kadd kads kadt kaka kakk kaks kakt kas- kasa kasb kask kass kast kat- kata katb katd katk kats katt kbaa kbab kbad kbak kbas kbat kbba kbbb kbbd kbbk kbbs kbbt kbdb kbds kbkb kbkk kbsa kbsb kbsk kbss kbst kbta kbtb kbtk kbts kbtt kdaa kdab kdad kdak kdat kdbb kdbs kddb kddd kddk kdka kdkb kdkd kdkk kdkt kdsd kdsk kdss kdst kdta kdtd kkaa kkat kkba kkbb kkbd kkbs kkbt kkda kkdd kkdt kkkk kksa kksd kkss kkst kktk kkts ksab ksak ksas ksat ksba ksbs ksdk ksds kska kskb kskd kskk ksks kssa ksss ksst ksta kstb kstk ksts kstt ktaa ktak ktas ktat ktba ktbb ktbt ktdb ktdd ktdk ktkb ktkk ktks ktkt ktsa ktsd ktst kttk ktts kttt saab saad saak saas saat saba sabb sabs sada sadb sadd sads sadt saka sakb sakk saks sasa sasd sask sass sast sata satb satd sats satt sbaa sbas sbbs sbds sbsa sbsd sbst sbtk sdak sdba sdds sdss skab skad skat sksd skss ssaa ssab ssas ssat ssdd sssa sssb ssss ssta sstb sstd ssts stab stad stak stas stat stbd stbs stds stks stss sttd taa- taas taat taba tabb tabs tada tads taka takk taks takt tasa tasb task tass tast tata tatb tats tatt tbas tbbs tbst tbta tddb tdss tkts tsaa tsat tsbd tsdb tsks tssa tsst tsts ttab ttbb ttss tttt