a-a a-b a-c aaa aab aac aad aak aar aas aay ab- aba abb abc abd abk abr abs aby ac- aca acb acc acd ack acr acs acy ad- ada adb adc add adk adr ads ady aka akb akc akd akk akr aks ar- ara arb arc ard ark arr ars ary as- asa asb asc asd ask asr ass asy ay- aya ayc ayd ayk ayr ays baa bab bac bad bak bar bas bay bba bbb bbc bbd bbk bbr bbs bby bca bcb bcc bcd bck bcr bcs bcy bda bdb bdc bdd bdk bdr bds bdy bka bkb bkc bkk bkr bks bra brb brd brk brr brs bry bsa bsb bsc bsd bsk bsr bss bsy by- bya byc byd byk byr bys c-- caa cab cac cad cak car cas cay cba cbb cbc cbd cbk cbr cbs cby cca ccb ccc ccd cck ccr ccs cda cdb cdc cdd cdk cdr cds cdy cka ckb ckc ckd cks cky cra crb crc crd crk crr crs cry csa csb csc csd csk csr css csy cya cyb cyc cyd cyk cyr cys daa dab dac dad dak dar das day dba dbb dbc dbd dbk dbr dbs dby dca dcb dcc dcd dck dcr dcs dda ddb ddc ddd ddk ddr dds ddy dka dkb dkc dkk dkr dks dra drb drc drd drk drr drs dry dsa dsb dsc dsd dsk dsr dss dsy dy- dya dyb dyc dyd dyk dyr dys dyy ka- kaa kab kac kad kak kar kas kay kba kbb kbc kbd kbk kbr kbs kca kcb kcc kcd kck kcr kcs kda kdb kdc kdk kdr kds kdy kkb kkc kkk kkr kks kky kra krc krd krk krr krs kry ksa ksb ksc ksd ksk ksr kss kya kyc kyd kyr kys ra- raa rab rac rad rak rar ras ray rba rbb rbc rbd rbk rbr rbs rca rcb rcc rcd rcr rcs rda rdb rdc rdd rdr rds rdy rkb rkc rkk rks rky rra rrb rrc rrd rrk rrr rrs rsa rsb rsc rsd rsk rsr rss ry- rya ryc ryd ryk ryr rys ryy saa sab sac sad sak sar sas say sba sbb sbc sbd sbk sbr sbs sby sca scb scc scd sck scr scs sda sdb sdc sdd sdk sdr sds sdy sk- ska skb skc skd skk skr sks sky sr- sra srb src srd srk srr srs sry ss- ssa ssb ssc ssd ssk ssr sss sy- sya syb syc syd syk syr sys yaa yab yac yad yak yar yas yay ybc ybr ybs yby yca ycc ycd ycs ycy yda yds ydy yka ykk yra yrc yrs ysa ysb ysc ysk ysr yss ysy yyb yyc yys yyy

a-ak a-ya aaaa aaab aaac aaad aaar aaas aaba aabb aabc aabd aaby aaca aacb aacc aacd aack aacr aacs aacy aada aadc aads aaka aara aarc aard aars aasa aasc aasd aass abaa abab abac abad abak abar abas abay abb- abba abbb abbr abbs abby abca abcb abcc abcd abcr abcs abda abdy abra abrc abrs abry abs- absa absd abss abyc abys abyy acaa acab acac acad acar acas acba acca accc accd accs accy acda acdb acdc acds ackd acks acr- acra acrc acrr acrs acry acsa acsc acsd acss adaa adab adac adad adak adar adas aday adba adbc adcc adcs adda addc addd addr adds addy adra adrs adry adsa adsr adss adya akaa akar akas akay akca akka akr- akra aksa akyr arab arac arad arak arar aras aray arba arbs arby arc- arca arcs arda ardc ards arka arks arky arr- arra arrc arrk arrr arrs arry ars- arsa arsc arsd arsk arsy ary- arya aryk arys asaa asab asac asad asak asar asas asay asba asby asc- asca ascb ascc ascr asda asds aska askr asks asky asra asrc asrs assa assc assd assk assr asss assy asya ayad ayar ayas ayay ayca ayda ayds ayra ayrk ayry ayya baaa baad baak baar baas baba babb babr babs baby bac- baca bacc back bacs bada badb badd badr bads bady bak- baka bakr baks bar- bara barb barc bard bark barr bars bary basa basc bask bass baya bays bbad bbas bbay bbbb bbbs bbdd bbrc bcaa bcar bcas bcbc bcbs bcca bccc bccs bcda bcds bcra bcrs bcsa bcsc bcss bd-r bday bdbc bddc bdry bdsd bkcy bkry brab brac brad brak bras bray brca brcb brda brds brdy brka brkb brrr brrs brsb brsr bry- brya bryd bryk bsaa bsac bsas bsbd bscs bsra bsrd bssc bssd byar byas byck byrd byrk bysb byss bysy byyd c-cd caaa caab caac caas caba cabs caby cac- caca cacc cack cacr cada cadc cadd cadr cads cady caka caky cara carb carc card cark carr cars cary casa casb casc casd cask casr cass cayr cays cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbdb cbdc cbds cbka cbkr cbrd cbry cbsa cbsc ccaa ccab ccac ccad ccar ccas ccba ccbc ccca cccb cccc cccs ccdc ccdr ccds ccra ccrc ccrs ccsa ccsd ccss cd-r cdaa cdac cdad cday cdba cdcs cdda cddb cddr cdrs cdss ckac ckbc ckck ckcs ckcy ckrc ckrd ckry cksa cksb crab crac crar cras cray crbc crca crcc crcr crda crdc crkc crsa crss cry- crya cryb crys csaa csab csac csak csar csas cscb cscc cscd cscr cscs csda csdb csdr cska csks csra csrc csrd csrs cssa cssd cssr csys cya- cyaa cyar cyba cybb cybc cyc- cyca cycb cycc cycs cyds cyra cyrk cyrs cyy- cyyc daab daad daar daas daba dabb dabs daca dacs dada dads dady daka daks dara darb darc dard dark darr dars dary dasa dasb dasc dasd dask dass dasy daya days dbar dbas dbcc dbcs dbrs dbsa dbss dc-y dcas dcbc dcca dccb dccc dccs dcdb dcds dcra dcrk dcsc dcss dday dddd ddrc ddry ddss dkba dkdc draa drab drac