a-ak aaaa aaac aaas aaca aacc aack aacs aact aaka aasa aasc aass aast aata aatc aatk aatt ac-t acaa acac acas acat acca accc accs acct acks acsa acsc acss acst acta actc acts actt akaa akas akca akka aksa akst asaa asac asak asas asat asc- asca ascc asct aska asks askt assa assc assk asss asst asta astc asts at-t ataa atac atak atas atat atca atcc atck atcs atka atkt atsc atst atta atts caaa caac caas caat cac- caca cacc cack caka casa casc cask cass cast cat- cata catc cats catt ccaa ccac ccas ccat ccca cccc cccs ccsa ccss ccst cctc cctt ckac ckat ckck ckcs cksa ckst ckts csaa csac csak csas csat cscc cscs cska csks cssa csta cstc csts ctca ctsa ctsc ctss ctta ctts kaaa kaak kaas kaat kacc kacs kact kaka kakc kakk kaks kakt kas- kasa kasc kask kass kast kat- kata katc katk kats katt kcaa kcac kcas kcat kcca kccc kcck kcct kckc kckk kcsa kcsc kcss kcst kcta kctc kkaa kkac kkat kkck kkcs kkct kkkk kksa kkss kkst kktc kktk kkts ksac ksak ksas ksat ksca ksck kscs kska kskk ksks kssa ksss ksst ksta kstc kstk ksts kstt ktaa ktak ktas ktat ktcc ktck ktcs ktkc ktkk ktks ktkt ktsa ktsc ktst kttc kttk ktts kttt sa-c saac saak saas saat saca sacc sack sacs sact saka sakk saks sasa sasc sask sass sast sata satc sats satt scaa scac scak scas scat sccc sccs scct sck- scsa scsc scst sctc scts skac skat skss ssaa ssac ssas ssat ssca sscc sscs sssa sssc ssss ssta sstc ssts stac stak stas stat stca stcc stcs stks stss sttc taa- taas taat taca tacc tack tacs tact taka takk taks takt tasa tasc task tass tast tata tats tatt tcca tccc tctc tcts tkac tkts tsaa tsat tsca tscc tsks tssa tsst tstc tsts ttss tttt