a-ak aaaa aaab aaac aaal aaar aaas aaba aabb aabc aabl aabt aaca aacb aacc aack aacl aacr aacs aact aaka aala aalc aall aals aara aarc aars aart aasa aasc aass aast aata aatc aatk aatt abaa abab abac abak abal abar abas abat abb- abba abbb abbr abbs abbt abca abcb abcc abcl abcr abcs abct abla abls abra abrc abrs abs- absa absl abss abta abts ac-t acaa acab acac acar acas acat acba acbl acca accc accs acct acks acla aclc aclr acls acr- acra acrc acrr acrs acsa acsc acsl acss acst acta actc actl acts actt akaa akal akar akas akca akka akr- akra aksa akst alaa alac alak alal alar alas alat alb- alba albc albs alca alcc alcs alk- alka alkb all- alla alll allr alls alsa alsc alst alta alts arab arac arak aral arar aras arat arba arbs arc- arca arcs arct arka arks arla arr- arra arrc arrk arrr arrs arrt ars- arsa arsc arsk arst arta artc artr arts asaa asab asac asak asal asar asas asat asba asc- asca ascb ascc ascl ascr asct aska askr asks askt asla aslr asra asrc asrs assa assc assk assl assr asss asst asta astb astc astl astr asts at-l at-t ataa atab atac atak atal atar atas atat atbs atca atcc atck atcl atcr atcs atka atkt atla atls atra atrc atrk atsb atsc atst atta attr atts baaa baak baal baar baas baat baba babb babr babs bac- baca bacc back bacs bact bak- baka bakl bakr baks bakt bala balc balk ball bals balt bar- bara barb barc bark barr bars bart basa basc bask bass bast bata batc bats batt bbas bbbb bbbs bblb bbls bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bccl bccs bcra bcrs bcsa bcsc bcsl bcss bctc bcts blaa blab blac blak blas blat blbt blkb blls blrc blss blst blts brab brac brak bras brat brca brcb brka brkb brls brrr brrs brsb brsr brst brtc bsaa bsac bsas bsat bscs bskt bslc bsra bssc bsts btaa btcc btcl btcs btla btrc btrt btss bttb caaa caab caac caal caas caat caba cabs cac- caca cacc cack cacr caka cala calc calk call cals calt cara carb carc cark carl carr cars cart casa casb casc cask casl casr cass cast cat- cata catb catc cats catt cbac cbal cbar cbat cbbc cbbs cbca cbcc cbcl cbcr cbcs cbct cbka cbkl cbkr cblb cblc cbrl cbrt cbsa cbsc cbta cbtc cbtl ccaa ccab ccac ccar ccas ccat ccba ccbc ccca cccb cccc cccl cccs ccla cclc ccls ccra ccrc ccrl ccrs ccrt ccsa ccsl ccss ccst cctb cctc cctl cctt ckac ckat ckbc ckck ckcl ckcs ckrc cksa cksb cksl ckst cktb ckts clab clar clas clat clra clrs clsa clsc cltb cltc clts crab crac crar cras crat crbc crca crcc crcr crkc crkl crls crrt crsa crss crst crtc crtl crts csaa csab csac csak csar csas csat cscb cscc cscl cscr cscs cska csks csla cslr csra csrc csrs cssa cssr csta cstc cstr csts ctab ctal ctba ctbs ctca ctls ctrc ctrl ctrs ctsa ctsc ctss ctta ctts kaaa kaab kaak kaal kaar kaas kaat kaba kabb kabc kabr kacb kacc kacl kacs kact kaka kakc kakk kaks kakt kala kalb kalc kalk kall kals kalt kara karb kark karl karr kars kart kas- kasa kasb kasc kask kasl kasr kass kast kat- kata katb katc katk katl katr kats katt kbaa kbab kbac kbak kbal kbar kbas kbat kbba kbbb kbbc kbbk kbbl kbbr kbbs kbbt kbca kbcb kbck kbcl kbcr kbcs kbct kbkb kbkk kbkl kbkr kbla kblb kbll kblr kbls kblt kbra kbrb kbrc kbrk kbrl kbrt kbsa kbsb kbsk kbsr kbss kbst kbta kbtb kbtc kbtk kbtl kbtr kbts kbtt kcaa kcab kcac kcal kcar kcas kcat kcba kcbc kcbk kcbl kcbr kcbs kcca kccb kccc kcck kccl kccr kcct kckc kckk kckl kckr kcla kclc kclk kcll kclr kcls kclt kcrc kcrr kcrs kcrt kcsa kcsb kcsc kcsr kcss kcst kcta kctb kctc kkaa kkac kkal kkar kkat kkba kkbb kkbl kkbr kkbs kkbt kkcb kkck kkcl kkcr kkcs kkct kkkk kklb kklc kkll kkls kkrb kkrc kkrk kkrl kkrr kkrs kkrt kksa kksr kkss kkst kktc kktk kktl kkts klaa klab klac klak klal klar klas klat klbb klbc klbl klbs klbt klca klcb klcc klck klcl klcr klcs klka klkc klkk klkl klkr klks klla kllb kllc kllk klls klrc klrk klrr klrs klsa klsc klsr klst kltc kltk kltr kltt krab krac krak kral krar kras krat krba krbb krbk krbl krbr krbt krca krcb krcc krcl krcs krka krkc krkk krkr krks krla krlc krlt krrb krrc krrk krrl krrr krrs krrt krsa krsc krsk krsl krsr krss krst krta krtc krtk krtr krts ksab ksac ksak ksal ksar ksas ksat ksba ksbc ksbl ksbr ksbs ksca kscb ksck kscl kscr kscs kska kskb kskk kskr ksks ksla kslb kslc kslk ksll kslr kslt ksra ksrb ksrr ksrs ksrt kssa kssl kssr ksss ksst ksta kstb kstc kstk kstl kstr ksts kstt ktaa ktak ktal ktar ktas ktat ktba ktbb ktbc ktbl ktbr ktbt ktcc ktck ktcl ktcr ktcs ktkb ktkc ktkk ktkr ktks ktkt ktla ktlb ktlk ktlr ktlt ktrb ktrc ktrk ktrl ktrr ktrs ktrt ktsa ktsc ktsl ktsr ktst kttc kttk kttr ktts kttt laaa laac laak laal laar laas laat laba labr labs laca lacc lack lacl lacs lact laka laks lala lall lara larb larc lark larr lars lart lasa lask lass last lata latc lats latt lbar lbcc lblr lbrs lbrt lbsc lcac lcat lcbc lcca lccc lccs lcls lcra lcrl lcrs lcsc lcsr lctl lcts lkab lkal lkrs llat llbs llcc llcs llks lllc llll lrac lral lrat lrba lrcs lrrc lrrr lrst lrta lrts ls-r lsat lscb lscs lsla lsrc lssa lssr lsts ltac ltbl ltcc ltcs ltra ltrs ltsa ltsr lttc lttr raab raak raas raat raba