-ey a-a a-b a-c aaa aab aac aae aaf aak aay ab- aba abb abc abe abf abk aby ac- aca acb acc ace acf ack acy aea aeb aec aee aef aek aey af- afa afb afc afe aff afk afy aka akb akc ake akk ay- aya ayc aye ayf ayk baa bab bac bae baf bak bay bba bbb bbc bbe bbf bbk bby bca bcb bcc bce bcf bck bcy be- bea beb bec bee bef bek bey bfa bfb bfc bfe bff bfy bka bkb bkc bke bkf bkk by- bya byc bye byf byk c-- caa cab cac cae caf cak cay cba cbb cbc cbe cbf cbk cby cca ccb ccc cce ccf cck ce- cea ceb cec cee cef cek cey cfa cfb cfc cfe cff cfk cka ckb ckc cky cya cyb cyc cye cyf cyk eaa eab eac eae eaf eak eba ebb ebc ebe ebf ebk eby ec- eca ecb ecc ece ecf eck eea eeb eec eee eef eek eey ef- efa efb efc efe eff eka ekb ekc eke ekf eky eya eyc eye faa fab fac fae faf fak fay fba fbb fbc fbe fbf fbk fca fcb fcc fce fcf fck fcy fea feb fec fee fef fek fey ffa ffc ffe fff ffk ffy fka fkb fkc fkf fkk fy- fya fyb fyc fye fyk ka- kaa kab kac kae kaf kak kay kba kbb kbc kbe kbf kbk kca kcb kcc kce kck ke- kea keb kec kee kef kek key kfa kfc kff kkb kkc kke kkk kky kya kyc kye yaa yab yac yae yaf yak yay ybc ybe ybf yby yca ycc yce ycf ycy yea yeb yec yee yef yek yey yfa yfc yfe yff yka ykk yyb yyc yye yyf yyy

a-ak a-be a-ya aaaa aaab aaac aaae aaaf aaba aabb aabc aaby aaca aacb aacc aace aacf aack aacy aaea aaec aafa aafb aafc aaff aaka aake abaa abab abac abae abaf abak abay abb- abba abbb abbe abby abca abcb abcc abcf abec abee abey abff abyc abye abyy acaa acab acac acae acba acca accc acce accf accy ace- acea acec acek acey acfc acfe acke aeac aeaf aeby aecb aeka afaa afak afca afcb afcc afee afek affa affc affy afka afye akaa akae akay akca akee akey akka ayay ayca ayce ayya baaa baaf baak baba babb babe baby bac- baca bacc bace back baek bafc baff bak- baka bake baya baye bbay bbbb bbeb bbfc bcaa bcbc bcca bccc bcec bcfc beaf beak beay beba bebb bebe beby beca beck beeb beef beek beey befa befe beff beka beke beya beye beyk bfca bkcy byce byck byke caaa caab caac caaf caba cabe cabf caby cac- caca cacc cace cack caec cafa cafb cafc cafe caff caka cake caky caye cbac cbbc cbca cbcc cbce cbea cbec cbee cbef cbfb cbfc cbka ccaa ccab ccac ccaf ccba ccbc ccca cccb cccc cccf ccee ccfa ccfc ccff ceac ceba cec- ceca cece ceeb ceec cef- cefa cefc ceke cfaa cfab cfac cfae cfbc cfca cfcb cfcf cfcy cffb cfyk ckac ckbc ckbe ckck ckcy ckey cya- cyaa cyba cybb cybc cyc- cyca cycb cycc cyfe cyke cyy- cyyc eaaf eaba eaca eacc eaec eafb ebac ebay ebba ebbc ebby ebcc ebfc ebya ecaa ecac ecbc ecbe ecca eccb eccc ecce ecef ecfa ecfc ecka ecky eeby eeca eeea eeee eefa eefe eeka eeke efab efca effa effy efke efya eka- ekab ekeb ekek ekfc ekka eyak eyck eyeb eyec eyey eyke f--k faaa faac faba fabe faca facc face fack facy faeb fafa fafc fafe faff fake faky faya faye fcab fcba fcca fccf feaf feak feba fece feck feeb feek fefc fefe feff feke ffcc ffee ffff fkab fyce fyfe fyke kaaa kaab kaaf kaak kaay kaba kabb kabc kabe kabf kaby kacb kacc kace kacy kafa kafc kafe kaff kafy kaka kakc kake kakk kaya kaye kayf kbaa kbab kbac kbae kbak kbay kbba kbbb kbbc kbbe kbbf kbbk kbca kbcb kbce kbck kbcy kbeb kbec kbee kbef kbek kbey kbfb kbfc kbff kbfk kbkb kbkf kbkk kbky kbya kbyb kcaa kcab kcac kcba kcbc kcbf kcbk kcca kccb kccc kcck kccy kcea kceb kcec kcee kcey kcfa kcfb kcfc kcfy kckc kckf kckk kcky kcya kcye kcyk kcyy kea- keak keay keba kebb kebc kebe keca keck keef keek kefa kefb kefc keff keka kekb kekc keke keya keyb keye keyf keyy kfab kfac kfay kfbc kfbk kfcf kfcy kfeb kffa kffb kfff kffk kfka kfkb kkaa kkac kkay kkba kkbb kkbe kkcb kkck kkcy kkea kkkk kkya kkyc kkyy kyaa kyak kyay kyba kybb kybc kybe kyby kyca kycc kyck kyee kyfb kyka kykc kyke kykk kyky kyya kyyk kyyy yaaf yaak yaba yacc yack yacy yafa yafc yafe yaff yaka yaya ycab yccc ycee yeaf yeck yeek yefe yeff yeka yeke yeye ykey yyfe yyff yyyy

-aaa- aaace aaaee aabaa aabba aabey aabye aacbc aaeaf abaab ababa ababe ababy abaca aback abaka abake abaya abaye abbac abbay abbey abbyy abccc abeba abebe abece abeye abfab abyek acaca acacb acack acacy acake acaya aceae ackee ackey acyce aeaea aebbe aface afcea afcec afefe afeka aka-e akaba akbay akcay akce ayaka aybak aykac ayyab baabe baake baaya babak babby babec babee babek babka bacab bacca baccy bacea back- backa backe backf backy baffa baffy bakay bakea bakey bakka bakke bakya bayaa bayac bayya bbbee beack beafe beaky bebay bebek becak becca becke becky beeac beebe beeby beefy beeke beffe bekaa bekka bekke beyke bface by-by bybee bycab byffe c-a-c ca-ca caaba cabby cacak caec- caeca caffa caffe cakey cayak cayce cayey cbeff cc-by ccccc ceace cebec cecka ceeac cybbe cyfac cykey eccky eecca eecke eeeee ekeby eyeka fabae fabby facea facey fakey fayfa fcaca feake fecky feyay fface fyffe kaaba kabaa kabab kabak kabba kabye kacee kacey kafak kaffa kaffe kaffy kafka kakae kakka kakke kakya kayak kayea kebab kebbe