a-a a-b a-c aaa aab aac aao aap aas ab- aba abb abc abo abp abs ac- aca acb acc aco acp acs aoa aob aoc aoo aop aos ap- apa apb apc apo app aps as- asa asb asc aso asp ass b-p baa bab bac bao bap bas bba bbb bbc bbo bbp bbs bca bcb bcc bco bcp bcs boa bob boc boo bop bos bpa bpb bpc bpo bpp bps bsa bsb bsc bso bsp bss c-- caa cab cac cao cap cas cba cbb cbc cbo cbp cbs cca ccb ccc cco ccp ccs co- coa cob coc coo cop cos cpa cpb cpc cpo cpp cps csa csb csc cso csp css oaa oab oac oao oap oas ob- oba obb obc obo obp obs oc- oca ocb occ oco ocp ocs oo- ooa oob ooc ooo oop oos op- opa opb opc opo opp ops os- osa osb osc oso osp oss p-p paa pab pac pao pap pas pba pbb pbc pbo pbp pbs pca pcb pcc pco pcp pcs poa pob poc poo pop pos ppa ppb ppc ppo ppp pps ps- psa psb psc pso psp pss saa sab sac sao sap sas sba sbb sbc sbo sbp sbs sca scb scc sco scp scs soa sob soc soo sop sos spa spb spc spo spp sps ss- ssa ssb ssc sso ssp sss

aaaa aaab aaac aaap aaas aaba aabb aabc aabp aaca aacb aacc aaco aacp aacs aaoo aapa aapc aapo aaps aasa aasc aass abaa abab abac abap abas abb- abba abbb abbo abbs abca abcb abcc abcp abcs aboa abob aboo abos abpa abpc abpp abps abs- absa absp abss acaa acab acac acap acas acba acca accc acco accp accs acoa acop acos acpa acps acsa acsc acss aoba aoca aocs aopo aosp aoss apac apao apap apas apba apbs apca apcb apcc apco apcs apo- apoc apoo apop apos appa appc apps apsa apso apss asaa asab asac asao asap asas asba asbo asc- asca ascb ascc asco ascp asob asoc asop asos aspa aspc aspo asps assa assc asso assp asss baaa baas baba babb babo babs bac- baca bacc baco bacs baos bapa bapc bapp baps basa basc baso bass bbas bbbb bbbs bcaa bcap bcas bcbc bcbp bcbs bcca bccc bccs bcos bcpp bcps bcsa bcsc bcss boab boac boas boba bobb bobo bobs boca boco bocs boob booc boop boos bopa bopp bops bosa bosc boso boss bpcp bpsa bsaa bsac bsap bsas bscp bscs bsos bspp bssc c-bo caaa caab caac caap caas caba cabo cabs cac- caca cacc caco caos capa capb capc capo capp caps casa casb casc caso casp cass cbac cbbc cbbs cbca cbcc cbcp cbcs cbpc cbpp cbsa cbsc ccaa ccab ccac ccap ccas ccba ccbc ccca cccb cccc cccp cccs ccob ccoc ccpa ccpp ccps ccsa ccsp ccss coas coba cobb cobo cobs coca coco cocp coob coop coos copa copo copp cops cosa cosc coso cosp coss cpaa cpac cpap cpas cpbc cpca cpcs cpos cppa cpps cpsa cpsc cpso csaa csab csac csao csas cscb cscc csco cscs csob csos cspa cspb cspc csps cssa oaps oasc oass obas obba obbo obos obss ocab ocac ocap ocas ocbc occa occc ocos ocpa ocpp ocsa ooaa ooba oooo ooos oops oosa opap opca opo- opos oppa oppo opps opsa osap osas osba osbp osca oscc osco osoo osos ossa ossb osso paap paas paba paca paco pacs paoc paos papa papb papp paps pasa pasc paso pasp pass pbac pbcc pboc pbpa pbsa pbsp pcaa pcap pcas pcba pcbc pcbs pcca pccc pccs pcoa pcos pcpb pcpp pcps pcsa pcso poas poba pobo pobs poca poco pocs poop poos pop- popa popc popo popp pops posa posb poso poss ppac ppap ppcc ppcs ppoa ppos pppa pppo pppp ppps ppss psac psap psas psca psco psoa psoc psos pspp psps pssa pssc psso s-os sa-c saab saac saap saas saba sabb sabc sabo sabs saca sacc saco sacs saos sapa sapo sapp saps sasa sasc saso sass sbaa sbac sbas sbbs sbca sbcc sbcs sbsa sbsp scaa scab scac scap scas scba sccc sccp sccs scob scoo scop scpa scpb scpo scps scsa scsc scso soap soas soba sobo sobp sobs soca soco socs soop soos sopa sopo sopp sops sosa soso soss sp-a spac spap spas spca spcc spco spcs spoc spoo spop spos spps spsa spso spsp spss ssaa ssab ssac ssao ssap ssas ssca sscc sscp sscs ssoc ssop sspa sspc sspo ssps sssa sssb sssc ssss

-aaa- -cpca a-a-p a-pac aaaas aaaoc aaasa aaass aabaa aabba aabps aacap aacbc aacbp aaccp aacos aacpa aacpp aacsa aacsb aacss abaab ababa ababs abaca abaco abacs abapo abasa abass abbac abbas abbos abcas abccc aboab abobo aboso acaca acacb acapp acass accas acopa acoss aoos apacs apapa apasa apass apcbc apoco apoop apopa apopo appos aps-c apsac apsos asaba asabc asaco asasa asbca asbos ascao ascap asco- asocs asosa aspac aspas aspca aspos assab assac assas assoa assoc assos b-cas baaop babas babbs baboo babos bacab bacao bacas bacca bacco bacos bapco basab basca basco baso- baspa bassa basso bo-bo boaco bobac boboc bobos bocac bocao bocas bocca bocoa bocsa booba boobs booco boops boosa bosas bosco boscs bossa bosso bsaba bscco bssap c-a-c c-p-c c-pop ca-ca caaba cabas cabob caboc cabos cacao cacas caco- cacoa cacso caoba capab capac capas capco capoc capos cappa cappo capps capsa casas casca casco casos caspa casso ccaps ccass ccccc co-bo co-co co-op cobas cobbs cocao cocas cocc- cocco cocoa cocos cooba coops coosa copac copap copas copos coppa coppo copps cos-b cosas cosca cosco cospa csaba csobs obaba occas ocopa oocss ooooo oopsa opaac opaca opobo oppas oppos ososo ossos pabas pabbo pacas pacoa pacos pacsa paoca papa- papas papoc papop papos pappa pappo papps pasab pasca pasco pasos pass- passa passo pcaas po-po pocao pocas pocop pocos pocsa poopo poops popco popop