a-ak a-fu aaaa aaab aaac aaaf aaal aaas aaba aabb aabc aabl aaca aacb aacc aacf aack aacl aacs aacu aafa aafb aafc aaff aafl aaka aaku aala aalc aall aals aalu aasa aasc aasf aass aasu aaus abaa abab abac abaf abak abal abas abau abb- abba abbb abbs abca abcb abcc abcf abcl abcs abff abla abls abs- absa absf absl abss absu abua abuf abuk abul abus acaa acab acac acas acba acbl acca accc accf accs accu acfc acfl acfs acks acla aclc acls aclu acsa acsc acsl acss acu- acuf acul acus afaa afak afbs afca afcb afcc afcs afcu affa affc affs afka afla aflc afsa afsb afsc afua afus akaa akal akas akca akka akku aksa aksu akua alaa alac alak alal alas alau alb- alba albc albs albu alca alcc alcs alfa alfs alk- alka alkb alku all- alla alll alls allu alsa alsc alua aluf aluk alus asaa asab asac asaf asak asal asas asau asba asbu asc- asca ascb ascc ascl asfa aska asks asla assa assc assk assl asss assu asub asus auaa auca aufc aufs auks aul- aula aulf aull auls aulu ausa ausu baaa baaf baak baal baas baba babb babs babu bac- baca bacc back bacs bafc baff bak- baka bakl baks baku bala balc balf balk ball bals balu basa basc basf bask bass basu bau- bauf bauk baul bbas bbau bbbb bbbs bbfc bblb bbls bcaa bcas bcbc bcbs bcca bccc bccl bccs bcfc bcsa bcsc bcsl bcss bcuc bfas bfca bfcs bffl bffs blaa blab blac blak blas blau blcu blfc blkb blls blss blub bluf blus bsaa bsac bsas bscs bsfa bsfc bsff bsfs bslc bssc bual buba bubb bubs bubu buca bucc buck bucs bucu bufc buff buka bukk buku bula bulb bulk bull buls bulu busa busc busk buss busu buus caaa caab caac caaf caal caas caba cabf cabs cabu cac- caca cacc cack cafa cafb cafc caff cafl cafs cafu caka cala calc calf calk call cals calu casa casb casc cask casl cass casu cauc cauf cauk caul caus cbac cbal cbbc cbbs cbca cbcc cbcl cbcs cbcu cbfb cbfc cbka cbkl cblb cblc cbsa cbsc cbus ccaa ccab ccac ccaf ccas ccba ccbc ccca cccb cccc cccf cccl cccs cccu ccfa ccfc ccff ccfl ccla cclc ccls ccsa ccsf ccsl ccss ccuc ccus cfaa cfab cfac cfbc cfbs cfca cfcb cfcf cfcl cfcs cffb cfls cfsa cfsl ckac ckbc ckck ckcl ckcs cklf cksa cksb cksl clab claf clas clau clsa clsc club csaa csab csac csak csas csbf cscb cscc cscf cscl cscs csfc cska csks csla cslu cssa csua csuf csus cuau cub- cuba cubb cubs cuca cucc cuck cufa cufc cuff cuk- cuka cula culb culc culk cull culs cusa cusb cusk cuss cusu f--k faaa faac faas faba fabs fabu faca facc fack facs fafa fafc faff faku fala falc falk fall fals falu fasa fasc fass faul fbla fbus fcab fcal fcas fcba fcbs fcca fccf fcsc fcsl fcuk ffcc ffff ffsa ffss fkab flab flac flak flcl flub fluf flus fsas fscb fscc fsck fssa fssc fssf fubb fubs fubu fuc- fuca fuck fufc fuff fufu fuka fukk fuku fula fulk full fuls fulu fusa fusc fusk fuss fusu kaaa kaab kaaf kaak kaal kaas kaba kabb kabc kabf kabu kacb kacc kacl kacs kacu kafa kafc kaff kafs kafu kaka kakc kakk kaks kaku kala kalb kalc kalf kalk kall kals kalu kas- kasa kasb kasc kasf kask kasl kass kasu kau- kaub kauc kauk kaul kaus kbaa kbab kbac kbak kbal kbas kbba kbbb kbbc kbbf kbbk kbbl kbbs kbbu kbca kbcb kbck kbcl kbcs kbcu kbfb kbfc kbff kbfk kbfl kbfs kbkb kbkf kbkk kbkl kbla kblb kblf kbll kbls kblu kbsa kbsb kbsk kbss kbsu kbua kbub kbuc kbuf kbuk kbul kbus kbuu kcaa kcab kcac kcal kcas kcau kcba kcbc kcbf kcbk kcbl kcbs kcbu kcca kccb kccc kcck kccl kccu kcfa kcfb kcfc kcfl kckc kckf kckk kckl kcla kclc kclf kclk kcll kcls kclu kcsa kcsb kcsc kcsf kcss kcsu kcua kcub kcuf kcuk kcul kfab kfac kfal kfbc kfbk kfcf kfcs kffa kffb kfff kffk kfka kfkb kfla kflb kflc kflf kfll kfls kfsa kfsk kful kkaa kkac kkal kkba kkbb kkbl kkbs kkcb kkck kkcl kkcs kkfs kkkk kklb kklc kklf kkll kkls kksa kksf kkss kksu kkua kkus kkuu klaa klab klac klaf klak klal klas klbb klbc klbf klbl klbs klbu klca klcb klcc klck klcl klcs klfa klfc klff klka klkc klkk klkl klks klla kllb kllc kllk klls klsa klsc klsf klsu klub kluf kluk kluu ksab ksac ksaf ksak ksal ksas ksau ksba ksbc ksbl ksbs ksca kscb ksck kscl kscs kscu ksfa ksfb ksfc kska kskb kskf kskk ksks ksku ksla kslb kslc kslk ksll kslu kssa kssl ksss kssu ksua ksub ksuu kuac kuaf kuau kuba kubb kubc kubs kubu kuca kucb kucc kufa kufc kuff kuka kukk kukl kuks kuku kula kulb kulf kull kulu kusa kusb kusc kusf kusu kuub kuuk kuul kuuu laaa laac laak laal laas laba labs labu laca lacc lack lacl lacs lacu lafb lafc laff laka laks lala lall lalu lasa lask lass lasu laub lauf lauk laul laus lbcc lbsc lcac lcbc lcca lccc lccs lcfc lcls lcsc lfca lfcc lkab lkal lkfs llbs llcc llcs llks lllc llll lsbu lscb lscs lsfc lsla lssa luas luau luba lubs luca luck lucs luff lufu luka lula lull lulu lusa lusk luss luua luuk sa-c saab saac saaf saak saal saas saba sabb sabc sabs sabu saca sacc sack sacs sacu safa safb safc saff safu saka sakb sakk saks saku sala salc salf salk sall sals salu sasa sasc sasf sask sasl sass saua sauc sauf sauk saul saus sbaa sbac sbas sbbs sbca sbcc sbcs sbfc sbsa sbus scaa scab scac scaf scak scal scas scba sccc sccl sccs scfa scfc sck- sckl scl- sclc