a-a a-b a-c aaa aab aac aak aar aas aay ab- aba abb abc abk abr abs aby ac- aca acb acc ack acr acs acy aka akb akc akk akr aks ar- ara arb arc ark arr ars ary as- asa asb asc ask asr ass asy ay- aya ayc ayk ayr ays baa bab bac bak bar bas bay bba bbb bbc bbk bbr bbs bby bca bcb bcc bck bcr bcs bcy bka bkb bkc bkk bkr bks bra brb brk brr brs bry bsa bsb bsc bsk bsr bss bsy by- bya byc byk byr bys c-- caa cab cac cak car cas cay cba cbb cbc cbk cbr cbs cby cca ccb ccc cck ccr ccs cka ckb ckc cks cky cra crb crc crk crr crs cry csa csb csc csk csr css csy cya cyb cyc cyk cyr cys ka- kaa kab kac kak kar kas kay kba kbb kbc kbk kbr kbs kca kcb kcc kck kcr kcs kkb kkc kkk kkr kks kky kra krc krk krr krs kry ksa ksb ksc ksk ksr kss kya kyc kyr kys ra- raa rab rac rak rar ras ray rba rbb rbc rbk rbr rbs rca rcb rcc rcr rcs rkb rkc rkk rks rky rra rrb rrc rrk rrr rrs rsa rsb rsc rsk rsr rss ry- rya ryc ryk ryr rys ryy saa sab sac sak sar sas say sba sbb sbc sbk sbr sbs sby sca scb scc sck scr scs sk- ska skb skc skk skr sks sky sr- sra srb src srk srr srs sry ss- ssa ssb ssc ssk ssr sss sy- sya syb syc syk syr sys yaa yab yac yak yar yas yay ybc ybr ybs yby yca ycc ycs ycy yka ykk yra yrc yrs ysa ysb ysc ysk ysr yss ysy yyb yyc yys yyy

a-ak a-ya aaaa aaab aaac aaar aaas aaba aabb aabc aaby aaca aacb aacc aack aacr aacs aacy aaka aara aarc aars aasa aasc aass abaa abab abac abak abar abas abay abb- abba abbb abbr abbs abby abca abcb abcc abcr abcs abra abrc abrs abry abs- absa abss abyc abys abyy acaa acab acac acar acas acba acca accc accs accy acks acr- acra acrc acrr acrs acry acsa acsc acss akaa akar akas akay akca akka akr- akra aksa akyr arab arac arak arar aras aray arba arbs arby arc- arca arcs arka arks arky arr- arra arrc arrk arrr arrs arry ars- arsa arsc arsk arsy ary- arya aryk arys asaa asab asac asak asar asas asay asba asby asc- asca ascb ascc ascr aska askr asks asky asra asrc asrs assa assc assk assr asss assy asya ayar ayas ayay ayca ayra ayrk ayry ayya baaa baak baar baas baba babb babr babs baby bac- baca bacc back bacs bak- baka bakr baks bar- bara barb barc bark barr bars bary basa basc bask bass baya bays bbas bbay bbbb bbbs bbrc bcaa bcar bcas bcbc bcbs bcca bccc bccs bcra bcrs bcsa bcsc bcss bkcy bkry brab brac brak bras bray brca brcb brka brkb brrr brrs brsb brsr bry- brya bryk bsaa bsac bsas bscs bsra bssc byar byas byck byrk bysb byss bysy caaa caab caac caas caba cabs caby cac- caca cacc cack cacr caka caky cara carb carc cark carr cars cary casa casb casc cask casr cass cayr cays cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbka cbkr cbry cbsa cbsc ccaa ccab ccac ccar ccas ccba ccbc ccca cccb cccc cccs ccra ccrc ccrs ccsa ccss ckac ckbc ckck ckcs ckcy ckrc ckry cksa cksb crab crac crar cras cray crbc crca crcc crcr crkc crsa crss cry- crya cryb crys csaa csab csac csak csar csas cscb cscc cscr cscs cska csks csra csrc csrs cssa cssr csys cya- cyaa cyar cyba cybb cybc cyc- cyca cycb cycc cycs cyra cyrk cyrs cyy- cyyc kaaa kaab kaak kaar kaas kaay kaba kabb kabc kabr kaby kacb kacc kacs kacy kaka kakc kakk kaks kara karb kark karr kars kary kas- kasa kasb kasc kask kasr kass kaya kays kbaa kbab kbac kbak kbar kbas kbay kbba kbbb kbbc kbbk kbbr kbbs kbca kbcb kbck kbcr kbcs kbcy kbkb kbkk kbkr kbky kbra kbrb kbrc kbrk kbry kbsa kbsb kbsk kbsr kbss kbsy kbya kbyb kbyr kbys kcaa kcab kcac kcar kcas kcba kcbc kcbk kcbr kcbs kcca kccb kccc kcck kccr kccy kckc kckk kckr kcky kcrc kcrr kcrs kcry kcsa kcsb kcsc kcsr kcss kcsy kcya kcyk kcys kcyy kkaa kkac kkar kkay kkba kkbb kkbr kkbs kkcb kkck kkcr kkcs kkcy kkkk kkrb kkrc kkrk kkrr kkrs kksa kksr kkss kkya kkyc kkys kkyy krab krac krak krar kras kray krba krbb krbk krbr krca krcb krcc krcs krka krkc krkk krkr krks krky krrb krrc krrk krrr krrs krry krsa krsc krsk krsr krss krsy kryk kryy ksab ksac ksak ksar ksas ksba ksbc ksbr ksbs ksby ksca kscb ksck kscr kscs kscy kska kskb kskk kskr ksks ksky ksra ksrb ksrr ksrs ksry kssa kssr ksss ksyc ksyr ksyy kyaa kyak kyar kyay kyba kybb kybc kybr kyby kyca kycc kyck kycr kycs kyka kykc kykk kykr kyks kyky kyra kyrc kyrk kyrs kysa kysc kysk kysr kyya kyyk kyys kyyy raab raak raas raba rabb rabk rabs raby rac- raca racc rack racs racy raka rakk rara rarb rark rars rary rasa rasc rask rass rasy raya rayk rayr rays rbbb rbbr rbbs rbss rcac rcas rcbc rccb rccc rccs rcsa rcsc rcss rcyc rkss rras rrrr rsaa rscc rscs rscy rssa ryas ryba ryck rysy sa-c saab saac saak saar saas saba sabb sabc sabr sabs saca sacc sack sacr sacs sacy saka sakb sakk saks saky sara sarc sark sarr sars sary sasa sasc sask sass saya sayr says sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbrk sbsa scaa scab scac scak scar scas scay scba