a-a a-b a-c aaa aab aac aap aar aas aay ab- aba abb abc abp abr abs aby ac- aca acb acc acp acr acs acy ap- apa apb apc app apr aps apy ar- ara arb arc arp arr ars ary as- asa asb asc asp asr ass asy ay- aya ayc ayp ayr ays b-p baa bab bac bap bar bas bay bba bbb bbc bbp bbr bbs bby bca bcb bcc bcp bcr bcs bcy bpa bpb bpc bpp bpr bps bpy bra brb brp brr brs bry bsa bsb bsc bsp bsr bss bsy by- bya byc byp byr bys c-- caa cab cac cap car cas cay cba cbb cbc cbp cbr cbs cby cca ccb ccc ccp ccr ccs cpa cpb cpc cpp cpr cps cra crb crc crp crr crs cry csa csb csc csp csr css csy cya cyb cyc cyp cyr cys p-p paa pab pac pap par pas pay pba pbb pbc pbp pbr pbs pby pca pcb pcc pcp pcr pcs ppa ppb ppc ppp ppr pps pra prb prc prp prr prs pry ps- psa psb psc psp psr pss psy py- pya pyb pyc pyr pys ra- raa rab rac rap rar ras ray rba rbb rbc rbp rbr rbs rca rcb rcc rcp rcr rcs rpa rpb rpc rpp rpr rps rra rrb rrc rrp rrr rrs rsa rsb rsc rsp rsr rss ry- rya ryc ryr rys ryy saa sab sac sap sar sas say sba sbb sbc sbp sbr sbs sby sca scb scc scp scr scs spa spb spc spp spr sps spy sr- sra srb src srp srr srs sry ss- ssa ssb ssc ssp ssr sss sy- sya syb syc syp syr sys yaa yab yac yap yar yas yay ybc ybp ybr ybs yby yca ycc ycp ycs ycy ypa yps yra yrc yrp yrs ysa ysb ysc ysp ysr yss ysy yyb yyc yys yyy

a-ya aaaa aaab aaac aaap aaar aaas aaba aabb aabc aabp aaby aaca aacb aacc aacp aacr aacs aacy aapa aapc aaps aara aarc aarp aars aasa aasc aass abaa abab abac abap abar abas abay abb- abba abbb abbr abbs abby abca abcb abcc abcp abcr abcs abpa abpc abpp abpr abps abra abrc abrs abry abs- absa absp abss abyc abys abyy acaa acab acac acap acar acas acba acca accc accp accs accy acpa acpr acps acr- acra acrc acrr acrs acry acsa acsc acss apac apap apar apas apay apba apbr apbs apca apcb apcc apcr apcs appa appc appr apps appy apra aprc aprs apsa apss arab arac arap arar aras aray arba arbs arby arc- arca arcs arpa arps arpy arr- arra arrc arrr arrs arry ars- arsa arsc arsy ary- arya arys asaa asab asac asap asar asas asay asba asby asc- asca ascb ascc ascp ascr aspa aspc aspr asps aspy asra asrc asrs assa assc assp assr asss assy asya ayar ayas ayay ayca ayra ayry ayya baaa baar baas baba babb babr babs baby bac- baca bacc bacs bapa bapc bapp baps bar- bara barb barc barr bars bary basa basc bass baya bays bbas bbay bbbb bbbs bbpr bbrc bcaa bcap bcar bcas bcbc bcbp bcbs bcca bccc bccs bcpp bcps bcra bcrs bcsa bcsc bcss bpay bpcp bprc bpsa brab brac bras bray brca brcb brrr brrs brsb brsr bry- brya bsaa bsac bsap bsas bscp bscs bspp bspr bsra bssc byar byas bysb bysp byss bysy caaa caab caac caap caas caba cabs caby cac- caca cacc cacr capa capb capc capp caps capy cara carb carc carp carr cars cary casa casb casc casp casr cass cayr cays cbac cbar cbbc cbbs cbca cbcc cbcp cbcr cbcs cbpc cbpp cbry cbsa cbsc ccaa ccab ccac ccap ccar ccas ccba ccbc ccca cccb cccc cccp cccs ccpa ccpp ccpr ccps ccra ccrc ccrp ccrs ccsa ccsp ccss cpaa cpac cpap cpas cpbc cpca cpcs cppa cpps cprs cpsa cpsc cpsr crab crac crap crar cras cray crbc crca crcc crcr crpc crps crsa crsp crss cry- crya cryb crys csaa csab csac csar csas cscb cscc cscr cscs cspa cspb cspc csps csra csrc csrs cssa cssr csys cya- cyaa cyar cyba cybb cybc cyc- cyca cycb cycc cycs cypa cypc cyps cyra cyrs cyy- cyyc paap paar paas paba paca pacs pacy papa papb papp papr paps papy par- para parc parp parr pars pary pasa pasc pasp pass pay- paya payb payp payr pays pbac pbar pbcc pbpa pbrs pbsa pbsp pcaa pcap pcas pcba pcbc pcbs pcca pccc pccs pcpb pcpp pcps pcra pcrc pcsa ppac ppap ppar ppcc ppcs pppa pppp ppps pprc ppss prar pras pray prbc prbs prca prcc prcp prcs prps prrs prsa prsc prss prys psac psap psas psbr psca pspp pspr psps psrp pssa pssc psy- psys pyas pyay pypy pyr- pyra pyry pysa pyss raab raas raba rabb rabs raby rac- raca racc racs racy rapa rapc rapp raps rapy rara rarb rars rary rasa rasc rasp rass rasy raya rayr rays rbbb rbbr rbbs rbsp rbss rcac rcas rcbc rccb rccc rccs rcps rcsa rcsc rcss rcyc rpca rpcs rpps rpyc rras rrrr rrsp rsaa rscc rscs rscy rspb rsps rssa ryas ryba rybp rysy sa-c saab saac saap saar saas saba sabb sabc sabr sabs saca sacc sacr sacs sacy sapa sapp saps sapy sara sarc sarp sarr sars sary sasa sasc sass saya sayp sayr says sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbsa sbsp scaa scab scac scap scar scas scay scba sccc sccp sccs sccy scpa scpb scps scr- scra scrc scrs scry scsa scsc scsr sp-a spac spap spar spas spay spby spca spcc spcs spps sprs spry spsa spsp spss spy- spyr spys sras srbc srby srcc srpc srps srsp ssaa ssab ssac ssap ssas ssbr ssby ssca sscc sscp sscs sspa sspc ssps ssra ssrc ssrs sssa sssb sssc ssss syar sycr