a-ak a-ya aaaa aaab aaac aaaf aaal aaba aabb aabc aabl aaby aaca aacb aacc aacf aack aacl aacy aafa aafb aafc aaff aafl aaka aala aalc aall abaa abab abac abaf abak abal abay abb- abba abbb abby abca abcb abcc abcf abcl abff abla ably abyc abyy acaa acab acac acba acbl acca accc accf accy acfc acfl acla aclc acyl afaa afak afca afcb afcc affa affc affy afka afla aflc afly akaa akal akay akca akka alaa alac alak alal alay alb- alba albc alby alca alcc alfa alk- alka alkb alky all- alla alll ally alya ayal ayay ayca ayla ayya baaa baaf baak baal baba babb baby bac- baca bacc back bafc baff bak- baka bakl bala balc balf balk ball baly baya bayl bbay bbbb bbfc bblb bcaa bcbc bcca bccc bccl bcfc bfca bffl bkcy blaa blab blac blak blay blfc blkb bly- blyk byck byla caaa caab caac caaf caal caba cabf caby cac- caca cacc cack cafa cafb cafc caff cafl caka caky cala calc calf calk call cbac cbal cbbc cbca cbcc cbcl cbfb cbfc cbka cbkl cblb cblc ccaa ccab ccac ccaf ccba ccbc ccca cccb cccc cccf cccl ccfa ccfc ccff ccfl ccla cclc cfaa cfab cfac cfbc cfca cfcb cfcf cfcl cfcy cffb cfyk ckac ckbc ckck ckcl ckcy cklf ckyl clab claf clay cly- clyk cya- cyaa cyba cybb cybc cyc- cyca cycb cycc cycl cyl- cylc cyll cyy- cyyc f--k faaa faac faba faca facc fack facy fafa fafc faff faky fala falc falk fall faya fayl fbla fcab fcal fcba fcca fccf ffcc ffff fkab flab flac flak flay flcl flya kaaa kaab kaaf kaak kaal kaay kaba kabb kabc kabf kaby kacb kacc kacl kacy kafa kafc kaff kafy kaka kakc kakk kala kalb kalc kalf kalk kall kaly kaya kayf kayl kbaa kbab kbac kbak kbal kbay kbba kbbb kbbc kbbf kbbk kbbl kbca kbcb kbck kbcl kbcy kbfb kbfc kbff kbfk kbfl kbkb kbkf kbkk kbkl kbky kbla kblb kblf kbll kbya kbyb kcaa kcab kcac kcal kcba kcbc kcbf kcbk kcbl kcca kccb kccc kcck kccl kccy kcfa kcfb kcfc kcfl kcfy kckc kckf kckk kckl kcky kcla kclc kclf kclk kcll kcly kcya kcyk kcyl kcyy kfab kfac kfal kfay kfbc kfbk kfcf kfcy kffa kffb kfff kffk kfka kfkb kfla kflb kflc kflf kfll kfly kkaa kkac kkal kkay kkba kkbb kkbl kkcb kkck kkcl kkcy kkkk kklb kklc kklf kkll kkya kkyc kkyy klaa klab klac klaf klak klal klay klbb klbc klbf klbl klca klcb klcc klck klcl klcy klfa klfc klff klka klkc klkk klkl klky klla kllb kllc kllk klly klyc klyk klyy kyaa kyak kyal kyay kyba kybb kybc kyby kyca kycc kyck kyfb kyka kykc kykk kyky kyla kyll kyya kyyk kyyy laaa laac laak laal laba laby laca lacc lack lacl lacy lafb lafc laff laka laky lala lall laya layk lbcc lcac lcbc lcca lccc lcfc lfca lfcc lkab lkal llay llcc lllc llll lyc- lyff lyfy lyka lyla lyly lyyf yaaf yaak yaba yacc yack yacy yafa yafc yaff yaka yala yall yaya ycab yccc ylay ylla ylyk yyff yyyy