a-a a-b a-c aaa aab aac aah aap aar aas ab- aba abb abc abh abp abr abs ac- aca acb acc ach acp acr acs aha ahb ahc ahh ahp ahr ahs ap- apa apb apc aph app apr aps ar- ara arb arc arh arp arr ars as- asa asb asc ash asp asr ass b-p baa bab bac bah bap bar bas bba bbb bbc bbh bbp bbr bbs bca bcb bcc bch bcp bcr bcs bha bhb bhc bhh bhp bhr bhs bpa bpb bpc bph bpp bpr bps bra brb brh brp brr brs bsa bsb bsc bsh bsp bsr bss c-- caa cab cac cah cap car cas cba cbb cbc cbh cbp cbr cbs cca ccb ccc cch ccp ccr ccs ch- cha chb chc chh chp chr chs cpa cpb cpc cph cpp cpr cps cra crb crc crh crp crr crs csa csb csc csh csp csr css haa hab hac hah hap har has hba hbb hbc hbh hbp hbr hbs hca hcb hcc hch hcp hcr hcs hha hhb hhc hhh hhp hhr hhs hpa hpb hpc hph hpp hpr hps hr- hra hrb hrc hrh hrp hrr hrs hsa hsb hsc hsh hsp hsr hss p-p paa pab pac pah pap par pas pba pbb pbc pbp pbr pbs pca pcb pcc pch pcp pcr pcs pha phb phc php phr phs ppa ppb ppc pph ppp ppr pps pra prb prc prh prp prr prs ps- psa psb psc psh psp psr pss ra- raa rab rac rah rap rar ras rba rbb rbc rbh rbp rbr rbs rca rcb rcc rch rcp rcr rcs rh- rha rhb rhc rhh rhp rhr rhs rpa rpb rpc rph rpp rpr rps rra rrb rrc rrh rrp rrr rrs rsa rsb rsc rsh rsp rsr rss saa sab sac sah sap sar sas sba sbb sbc sbh sbp sbr sbs sca scb scc sch scp scr scs sh- sha shb shc shh shp shr shs spa spb spc sph spp spr sps sr- sra srb src srh srp srr srs ss- ssa ssb ssc ssh ssp ssr sss

a-ha aaaa aaab aaac aaah aaap aaar aaas aaba aabb aabc aabh aabp aaca aacb aacc aach aacp aacr aacs aaha aahs aapa aapc aaph aaps aara aarc aarp aars aasa aasc aass abaa abab abac abap abar abas abb- abba abbb abbr abbs abca abcb abcc abch abcp abcr abcs abha abhr abhs abpa abpc abpp abpr abps abra abrc abrs abs- absa absp abss acaa acab acac acap acar acas acba acca accc acch accp accs acha achh achp achr achs acpa acpr acps acr- acra acrc acrr acrs acsa acsc acss ahab ahac ahah ahar ahas ahha ahhs ahra ahrc ahrr ahrs ahsa ahss apac apah apap apar apas apba apbr apbs apca apcb apcc apcr apcs aph- apha aphc aphs appa appc apph appr apps apra aprc aprs apsa apss arab arac arah arap arar aras arba arbh arbs arc- arca arch arcs arh- arhs arpa arps arr- arra arrc arrh arrr arrs ars- arsa arsc asaa asab asac asah asap asar asas asba asc- asca ascb ascc asch ascp ascr asha ashp ashs aspa aspc asph aspr asps asra asrc asrs assa assc assh assp assr asss baaa baah baar baas baba babb babr babs bac- baca bacc bach bacs baha bahr bahs bapa bapc bapp baps bar- bara barb barc barh barr bars basa basc bash bass bbas bbbb bbbs bbch bbhs bbpr bbrc bcaa bcap bcar bcas bcbc bcbp bcbs bcca bccc bccs bchs bcpp bcps bcra bcrs bcsa bcsc bcss bhar bhca bhcc bhhs bhra bpcp bphc bphs bprc bpsa brab brac brah bras brca brcb brhs brrr brrs brsb brsr bsaa bsac bsap bsas bscp bscs bshs bspp bspr bsra bssc caaa caab caac caah caap caas caba cabs cac- caca cacc cach cacr caha cahs capa capb capc caph capp caps cara carb carc carp carr cars casa casb casc cash casp casr cass cbac cbar cbbc cbbs cbca cbcc cbcp cbcr cbcs cbha cbhs cbpc cbpp cbrh cbsa cbsc ccaa ccab ccac ccap ccar ccas ccba ccbc ccca cccb cccc cccp cccs ccha cchp cchr cchs ccpa ccpp ccpr ccps ccra ccrc ccrp ccrs ccsa ccsp ccss chaa chab chac chah chap char chas chbp chca chch chcp chcs chha chhs chpa chpp chpr chra chrb chrc chrp chrr chrs chsc chsh chsr cpaa cpac cpap cpas cpbc cpca cpcs cpha cphs cppa cpps cprs cpsa cpsc cpsr crab crac crap crar cras crbc crca crcc crcr crhs crpc crps crsa crsp crss csaa csab csac csar csas cscb cscc csch cscr cscs cshp cshs cspa cspb cspc csps csra csrc csrs cssa cssr haab haar haas haba habs hacs haha hahs hapa happ haps hara harc harh harp harr hars hasa hasc hash hasp hass hbar hbbs hbhs hbrs hbss hcap hcbc hcbs hcca hccb hccc hcch hccs hchs hcpc hcps hcrp hcsa hcsc hcss hhaa hhhh hhhs hhpa hhpc hpac hpcc hphs hpps hpsc hpss hrac hrap hras hrhs hrpc hrpp hrps hrrc hsac hsas hsbc hscc hshs hspa hsps hssp paap paar paas paba paca pach pacs paha pahp pahs papa papb papp papr paps par- para parc parp parr pars pasa pasc pash pasp pass pbac pbar pbcc pbhs pbpa pbrs pbsa pbsp pcaa pcap pcas pcba pcbc pcbs pcca pccc pccs pcha pchp pchs pcpb pcpp pcps pcra pcrc pcsa phah phar phbs phcc phhs phpa phrr phrs phsc ppac ppap ppar ppcc ppcs pphs pppa pppp ppps pprc ppsh ppss prar pras prbc prbs prca prcc prcp prcs prhs prps prrs prsa prsc prss psac psap psas psbr psca psha pshc pshs psph pspp pspr psps psrp pssa pssc raab raas raba rabb rabs rac- raca racc rach racs raha rahr rahs rapa rapc raph rapp raps rara rarb rars rasa rasc rash rasp rass rbbb rbbr rbbs rbhs rbsp rbss rcac rcas rcbc