a-a a-b a-c aaa aab aac aap aar aas ab- aba abb abc abp abr abs ac- aca acb acc acp acr acs ap- apa apb apc app apr aps ar- ara arb arc arp arr ars as- asa asb asc asp asr ass b-p baa bab bac bap bar bas bba bbb bbc bbp bbr bbs bca bcb bcc bcp bcr bcs bpa bpb bpc bpp bpr bps bra brb brp brr brs bsa bsb bsc bsp bsr bss c-- caa cab cac cap car cas cba cbb cbc cbp cbr cbs cca ccb ccc ccp ccr ccs cpa cpb cpc cpp cpr cps cra crb crc crp crr crs csa csb csc csp csr css p-p paa pab pac pap par pas pba pbb pbc pbp pbr pbs pca pcb pcc pcp pcr pcs ppa ppb ppc ppp ppr pps pra prb prc prp prr prs ps- psa psb psc psp psr pss ra- raa rab rac rap rar ras 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 saa sab sac sap sar sas sba sbb sbc sbp sbr sbs sca scb scc scp scr scs spa spb spc spp spr sps sr- sra srb src srp srr srs ss- ssa ssb ssc ssp ssr sss

aaaa aaab aaac aaap aaar aaas aaba aabb aabc aabp aaca aacb aacc aacp aacr aacs aapa aapc aaps aara aarc aarp aars aasa aasc aass abaa abab abac abap abar abas abb- abba abbb abbr abbs abca abcb abcc abcp abcr abcs abpa abpc abpp abpr abps abra abrc abrs abs- absa absp abss acaa acab acac acap acar acas acba acca accc accp accs acpa acpr acps acr- acra acrc acrr acrs acsa acsc acss apac apap apar apas apba apbr apbs apca apcb apcc apcr apcs appa appc appr apps apra aprc aprs apsa apss arab arac arap arar aras arba arbs arc- arca arcs arpa arps arr- arra arrc arrr arrs ars- arsa arsc asaa asab asac asap asar asas asba asc- asca ascb ascc ascp ascr aspa aspc aspr asps asra asrc asrs assa assc assp assr asss baaa baar baas baba babb babr babs bac- baca bacc bacs bapa bapc bapp baps bar- bara barb barc barr bars basa basc bass bbas bbbb bbbs bbpr bbrc bcaa bcap bcar bcas bcbc bcbp bcbs bcca bccc bccs bcpp bcps bcra bcrs bcsa bcsc bcss bpcp bprc bpsa brab brac bras brca brcb brrr brrs brsb brsr bsaa bsac bsap bsas bscp bscs bspp bspr bsra bssc caaa caab caac caap caas caba cabs cac- caca cacc cacr capa capb capc capp caps cara carb carc carp carr cars casa casb casc casp casr cass cbac cbar cbbc cbbs cbca cbcc cbcp cbcr cbcs cbpc cbpp 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 crbc crca crcc crcr crpc crps crsa crsp crss csaa csab csac csar csas cscb cscc cscr cscs cspa cspb cspc csps csra csrc csrs cssa cssr paap paar paas paba paca pacs papa papb papp papr paps par- para parc parp parr pars pasa pasc pasp pass 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 prbc prbs prca prcc prcp prcs prps prrs prsa prsc prss psac psap psas psbr psca pspp pspr psps psrp pssa pssc raab raas raba rabb rabs rac- raca racc racs rapa rapc rapp raps rara rarb rars rasa rasc rasp rass rbbb rbbr rbbs rbsp rbss rcac rcas rcbc rccb rccc rccs rcps rcsa rcsc rcss rpca rpcs rpps rras rrrr rrsp rsaa rscc rscs rspb rsps rssa sa-c saab saac saap saar saas saba sabb sabc sabr sabs saca sacc sacr sacs sapa sapp saps sara sarc sarp sarr sars sasa sasc sass sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbsa sbsp scaa scab scac scap scar scas scba sccc sccp sccs scpa scpb scps scr- scra scrc scrs scsa scsc scsr sp-a spac spap spar spas spca spcc spcs spps sprs spsa spsp spss sras srbc srcc srpc srps srsp ssaa ssab ssac ssap ssas ssbr ssca sscc sscp sscs sspa sspc ssps ssra ssrc ssrs sssa sssb sssc ssss

-aaa- -cpca a-a-p a-pac aaaas aaarc aaasa aaass aabaa aabba aabps aabra aacap aacbc aacbp aaccp aacpa aacpp aacpr aacsa aacsb aacss aasra abaab ababa ababs abaca abacs abara abasa abass abbac abbar abbas abbrs abcas abccc abrac abrar abras absar acaca acacb acapp acar- acara acars acass accas accra acrab apacs apapa apar- apara apars apasa apass apcbc appar aps-c apsac apsar ar-ab ara-c arab- araba arabs araca arara arars arass arbab arbar arbas arcas arpar arpas arras arsac asaba asabc asara asarp asasa asbca ascap ascar aspac aspar aspas aspca aspra asrar assab assac assas b-cas baars babar babas babbs babra bacab bacar bacas bacca baraa barab barac barar baras barba barbs barca barcs barra barrs barsa barss basab basar basca baspa basra bassa bbsrc braas braca bracc bracs brasa brasc brass brrar brrrr bsaba bssap c-a-c c-p-c ca-ca caaba cabas cabra cacas capab capac capar capas cappa capps capra capsa caraa carab carac carap caras carb- carbs carp- carpa carps carra carrs casar casas casca caspa caspr cbars ccaps ccass ccccc craba crabb crabp crabs craps crars crass csaba csars csprs cssra paara paarp paars pabas pabra pacas pacra pacsa papa- papar papas pappa papps para- paras parca parcc parcs parps parr- parra parrs parsa pasab pasar pasca pass- passa pcaas pcrab praca praps prasa prssa psapp psara psbaa ra-ra raaba raasa rabab rabac rabap rabas rabba