a-ak aaaa aaac aaaf aaar aaas aaca aacc aacf aack aacr aacs aact aafa aafc aaff aaka aara aarc aars aart aasa aasc aasf aass aast aata aatc aatf aatk aatt ac-t acaa acac acar acas acat acca accc accf accs acct acfc acfs acft acks acr- acra acrc acrr acrs acsa acsc acss acst acta actc actf acts actt afaa afak afar afat afca afcc afcs affa affc affs afft afka afkr afr- afra afrc afrs afsa afsc afst afta aftc afts akaa akar akas akca akka akr- akra aksa akst arac araf arak arar aras arat arc- arca arcs arct arfa arfc arff arfs arft arka arks arr- arra arrc arrk arrr arrs arrt ars- arsa arsc arsk arst arta artc artr arts asaa asac asaf asak asar asas asat asc- asca ascc ascr asct asfa aska askr asks askt asra asrc asrs assa assc assk assr asss asst asta astc astr asts at-t ataa atac atak atar atas atat atca atcc atcf atck atcr atcs atfc atfs atka atkt atra atrc atrk atsc atst atta attr atts caaa caac caaf caas caat cac- caca cacc cack cacr cafa cafc caff cafs caka cara carc carf cark carr cars cart casa casc cask casr cass cast cat- cata catc catf cats catt ccaa ccac ccaf ccar ccas ccat ccca cccc cccf cccs ccfa ccfc ccff ccra ccrc ccrf ccrs ccrt ccsa ccsf ccss ccst cctc cctt cfaa cfac cfar cfca cfcf cfcs cffr cfra cfrt cfsa cfta cftc cftk cftr ckac ckat ckck ckcs ckfr ckrc cksa ckst ckts crac craf crar cras crat crca crcc crcr crfc crfs crkc crrt crsa crss crst crtc crtf crts csaa csac csak csar csas csat cscc cscf cscr cscs csfc csfr cska csks csra csrc csrs cssa cssr csta cstc cstr csts ctca ctcf ctfc ctfs ctrc ctrs ctsa ctsc ctss ctta ctts f--k faaa faac faas faca facc fack facs fact fafa fafc faff fakt fara farc fark farr fars fart fasa fasc fass fast fata fatc fatf fats fatt fcar fcas fcat fcca fccf fcra fcsc fcst ffar ffcc ffff ffrr ffsa ffss fftf frac frak fras frat frcc frfc frsc frst frta fsas fscc fsck fsra fssa fssc fssf fsta ft-c ftfc ftrs ftsa ftsr kaaa kaaf kaak kaar kaas kaat kacc kacs kact kafa kafc kaff kafr kafs kaka kakc kakk kaks kakt kara karf kark karr kars kart kas- kasa kasc kasf kask kasr kass kast kat- kata katc katf katk katr kats katt kcaa kcac kcar kcas kcat kcca kccc kcck kccr kcct kcfa kcfc kcft kckc kckf kckk kckr kcrc kcrr kcrs kcrt kcsa kcsc kcsf kcsr kcss kcst kcta kctc kfac kfar kfat kfcf kfcr kfcs kffa kfff kffk kfka kfra kfrc kfrr kfrs kfsa kfsk kfsr kfst kfta kftc kftk kftt kkaa kkac kkar kkat kkck kkcr kkcs kkct kkfr kkfs kkft kkkk kkrc kkrf kkrk kkrr kkrs kkrt kksa kksf kksr kkss kkst kktc kktk kkts krac krak krar kras krat krca krcc krcs krfc krff krfs krft krka krkc krkk krkr krks krrc krrf krrk krrr krrs krrt krsa krsc krsf krsk krsr krss krst krta krtc krtk krtr krts ksac ksaf ksak ksar ksas ksat ksca ksck kscr kscs ksfa ksfc ksfr ksft kska kskf kskk kskr ksks ksra ksrf ksrr ksrs ksrt kssa kssr ksss ksst ksta kstc kstk kstr ksts kstt ktaa ktak ktar ktas ktat ktcc ktck ktcr ktcs ktfc ktfs ktkc ktkk ktkr ktks ktkt ktrc ktrf ktrk ktrr ktrs ktrt ktsa ktsc ktsf ktsr ktst kttc kttf kttk kttr ktts kttt raaf raak raas raat rac- raca racc rack racs ract rafa rafc raff raft raka rakk rakt rara rarf rark rars rasa rasc rask rass rast rata ratf ratk rats ratt rcac rcaf rcas rccc rccs rcfc rcsa rcsc rcss rctc rcts rffc rftc rkkf rkss rkts rras rrat rrfc rrrr rsaa rsaf rscc rscs rsfc rssa rsts rtas rtca rtcc rtfc rtss rtts sa-c saac saaf saak saar saas saat saca sacc sack sacr sacs sact safa safc saff safr saft saka sakk saks sara sarc sarf sark sarr sars sart sasa sasc sasf sask sass sast sata satc satr sats satt scaa scac scaf scak scar scas scat sccc sccs scct scfa scfc sck- scr- scra scrc scrs scsa scsc scsr scst sctc sctr scts sfar sfas sfca sfcc sfcs sffc sfra sfrc sfss sfts skac skaf skar skat skfc skra skrt skss sraf sras srcc srct srfc srta srtr ssaa ssac ssas ssat ssca sscc sscs ssfc ssra ssrc ssrs sssa sssc sssf ssss ssta sstc ssts stac stak star stas stat stca stcc stcs stfc stks stra strc strk strs stsf stss sttc sttr taa- taaf taar taas taat taca tacc tack tacs tact tafa tafc taff taft taka takk taks takt tara tarc tarf tark tarr tars tart tasa tasc task tasr tass tast tata tatr tats tatt tcca tccc tcfc tctc tcts tfca tfrs tfss tftc tkac tkts traa trac traf trak tras trat trca trcc trfc trfr trra trst trtc trtr tsaa tsar tsat tsca tscc tsfc tsks tssa tssf tssr tsst tstc tsts ttfa ttfc ttff ttss tttt