-up a-a a-b a-c aaa aab aac aap aar aas aau ab- aba abb abc abp abr abs abu ac- aca acb acc acp acr acs acu ap- apa apb apc app apr aps apu ar- ara arb arc arp arr ars aru as- asa asb asc asp asr ass asu au- aua aub auc aup aur aus b-p b-u baa bab bac bap bar bas bau bba bbb bbc bbp bbr bbs bbu bca bcb bcc bcp bcr bcs bcu bpa bpb bpc bpp bpr bps bpu bra brb brp brr brs bru bsa bsb bsc bsp bsr bss bsu bua bub buc bup bur bus buu c-- caa cab cac cap car cas cau cba cbb cbc cbp cbr cbs cbu cca ccb ccc ccp ccr ccs ccu cpa cpb cpc cpp cpr cps cpu cra crb crc crp crr crs cru csa csb csc csp csr css csu cua cub cuc cup cur cus cuu p-p paa pab pac pap par pas pau pba pbb pbc pbp pbr pbs pbu pca pcb pcc pcp pcr pcs pcu ppa ppb ppc ppp ppr pps ppu pra prb prc prp prr prs pru ps- psa psb psc psp psr pss psu pua pub puc pup pur pus puu ra- raa rab rac rap rar ras rau rba rbb rbc rbp rbr rbs rbu rca rcb rcc rcp rcr rcs rcu rpa rpb rpc rpp rpr rps rpu rra rrb rrc rrp rrr rrs rru rsa rsb rsc rsp rsr rss rsu rua rub ruc rup rur rus ruu saa sab sac sap sar sas sau sba sbb sbc sbp sbr sbs sbu sca scb scc scp scr scs scu spa spb spc spp spr sps spu sr- sra srb src srp srr srs ss- ssa ssb ssc ssp ssr sss ssu sua sub suc sup sur sus suu ua- uaa uab uac uap uar uas uau uba ubb ubc ubp ubr ubs ubu uca ucb ucc ucp ucr ucs ucu up- upa upb upc upp upr ups upu ur- ura urb urc urp urr urs uru usa usb usc usp usr uss usu uua uuc uur uus uuu

aaaa aaab aaac aaap aaar aaas aaba aabb aabc aabp aaca aacb aacc aacp aacr aacs aacu aapa aapc aaps aara aarc aarp aars aaru aasa aasc aass aasu aaup aaus abaa abab abac abap abar abas abau abb- abba abbb abbr abbs abca abcb abcc abcp abcr abcs abpa abpc abpp abpr abps abra abrc abrs abs- absa absp abss absu abua abus acaa acab acac acap acar acas acba acca accc accp accs accu acpa acpr acps acpu acr- acra acrc acrr acrs acsa acsc acss acu- acup acur acus apac apap apar apas apba apbr apbs apca apcb apcc apcr apcs appa appc appr apps appu apra aprc aprs apsa apss apsu apua apuc apup apus arab arac arap arar aras arau arba arbs arc- arca arcs arpa arps arpu arr- arra arrc arrr arrs arru ars- arsa arsc arsu arua arub arup asaa asab asac asap asar asas asau asba asbu asc- asca ascb ascc ascp ascr aspa aspc aspr asps asra asrc asrs asru assa assc assp assr asss assu asub asur asus auaa auca aucp aupc aups aur- aura ausa ausu baaa baar baas baba babb babr babs babu bac- baca bacc bacs bapa bapc bapp baps bapu bar- bara barb barc barr bars baru basa basc bass basu bau- baur bbas bbau bbbb bbbs bbpr bbrc bcaa bcap bcar bcas bcbc bcbp bcbs bcca bccc bccs bcpp bcps bcra bcrs bcru bcsa bcsc bcss bcuc bcup bpcp bprc bpsa bpsu brab brac bras brau brca brcb brrr brrs brsb brsr bruc brup brus bsaa bsac bsap bsas bscp bscs bspp bspr bsra bssc bsup buar buba bubb bubs bubu buca bucc bucs bucu bupa bupc bups bur- bura burb burp burr burs buru busa busc buss busu buus caaa caab caac caap caas caba cabs cabu cac- caca cacc cacr capa capb capc capp caps capu cara carb carc carp carr cars casa casb casc casp casr cass casu cauc caup caus cbac cbar cbbc cbbs cbca cbcc cbcp cbcr cbcs cbcu cbpc cbpp cbsa cbsc cbus ccaa ccab ccac ccap ccar ccas ccba ccbc ccca cccb cccc cccp cccs cccu ccpa ccpp ccpr ccps ccra ccrc ccrp ccrs ccsa ccsp ccss ccuc ccup ccus cpaa cpac cpap cpas cpbc cpca cpcs cpcu cppa cpps cprs cpsa cpsc cpsr cpsu cpus crab crac crap crar cras crau crbc crbu crca crcc crcr crpc crps crsa crsp crss crub crup crus csaa csab csac csar csas cscb cscc cscr cscs cspa cspb cspc csps csra csrc csrs cssa cssr csua csup csur csus cuau cub- cuba cubb cubs cuca cucc cupp cupr cups cura curb curr curs cusa cusb cusp cuss cusu paap paar paas paba pabu paca pacs pacu papa papb papp papr paps par- para parc parp parr pars paru pasa pasc pasp pass paua paup paur paus 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 ppru ppss ppur prar pras prau prbc prbs prca prcc prcp prcs prps prrs prsa prsc prss prus pruu psac psap psas psbr psca pscu pspp pspr psps psrp pssa pssc puar puas pubs pubu puca pupa pups pupu pur- pura purb purp purr purs puru pusa puss puuc raab raas raba rabb rabs rabu rac- raca racc racs racu rapa rapc rapp raps rara rarb rars rasa rasc rasp rass rasu raua raub rauc raup raus 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 rsua ruas ruba rubb rubp rubs rubu ruca rupa rupp rura rurc rurp rurs ruru rusa russ rusu sa-c saab saac saap saar saas saba sabb sabc sabr sabs sabu