a-a a-b a-c aaa aab aac aak aap aas ab- aba abb abc abk abp abs ac- aca acb acc ack acp acs aka akb akc akk akp aks ap- apa apb apc apk app aps as- asa asb asc ask asp ass b-p baa bab bac bak bap bas bba bbb bbc bbk bbp bbs bca bcb bcc bck bcp bcs bka bkb bkc bkk bkp bks bpa bpb bpc bpp bps bsa bsb bsc bsk bsp bss c-- caa cab cac cak cap cas cba cbb cbc cbk cbp cbs cca ccb ccc cck ccp ccs cka ckb ckc cks cpa cpb cpc cpk cpp cps csa csb csc csk csp css ka- kaa kab kac kak kap kas kba kbb kbc kbk kbp kbs kca kcb kcc kck kcp kcs kkb kkc kkk kkp kks kpa kpc kpk kpp kps ksa ksb ksc ksk ksp kss p-p paa pab pac pak pap pas pba pbb pbc pbk pbp pbs pca pcb pcc pck pcp pcs pka pkb pkc pkp pks ppa ppb ppc ppk ppp pps ps- psa psb psc psk psp pss saa sab sac sak sap sas sba sbb sbc sbk sbp sbs sca scb scc sck scp scs sk- ska skb skc skk skp sks spa spb spc spk spp sps ss- ssa ssb ssc ssk ssp sss

a-ak aaaa aaab aaac aaap aaas aaba aabb aabc aabp aaca aacb aacc aack aacp aacs aaka aapa aapc aaps aasa aasc aass abaa abab abac abak abap abas abb- abba abbb abbs abca abcb abcc abcp abcs abpa abpc abpp abps abs- absa absp abss acaa acab acac acap acas acba acca accc accp accs acks acpa acps acsa acsc acss akaa akap akas akca akka aksa apac apak apap apas apba apbs apca apcb apcc apcs appa appc apps apsa apss asaa asab asac asak asap asas asba asc- asca ascb ascc ascp aska asks aspa aspc asps assa assc assk assp asss baaa baak baas baba babb babs bac- baca bacc back bacs bak- baka baks bapa bapc bapp baps basa basc bask bass bbas bbbb bbbs bcaa bcap bcas bcbc bcbp bcbs bcca bccc bccs bcpp bcps bcsa bcsc bcss bksp bpcp bpsa bsaa bsac bsap bsas bscp bscs bspp bssc caaa caab caac caap caas caba cabs cac- caca cacc cack caka capa capb capc capp caps casa casb casc cask casp cass cbac cbbc cbbs cbca cbcc cbcp cbcs cbka cbpc cbpp cbsa cbsc ccaa ccab ccac ccap ccas ccba ccbc ccca cccb cccc cccp cccs ccpa ccpp ccps ccsa ccsp ccss ckac ckbc ckck ckcs ckpc cksa cksb cpaa cpac cpap cpas cpbc cpca cpcs cppa cpps cpsa cpsc cpsk csaa csab csac csak csas cscb cscc cscs cska csks cspa cspb cspc csps cssa kaaa kaab kaak kaap kaas kaba kabb kabc kacb kacc kacp kacs kaka kakc kakk kaks kap- kapa kapc kapp kaps kas- kasa kasb kasc kask kasp kass kbaa kbab kbac kbak kbap kbas kbba kbbb kbbc kbbk kbbs kbca kbcb kbck kbcs kbkb kbkk kbpa kbpc kbpk kbps kbsa kbsb kbsk kbss kcaa kcab kcac kcap kcas kcba kcbc kcbk kcbs kcca kccb kccc kcck kckc kckk kcpa kcpc kcps kcsa kcsb kcsc kcsp kcss kkaa kkac kkap kkba kkbb kkbs kkcb kkck kkcs kkkk kkpc kkpk kkps kksa kksp kkss kpac kpak kpas kpba kpbb kpbs kpcc kpcs kpkk kppc kppk kppp kpsc kpsp ksab ksac ksak ksas ksba ksbc ksbp ksbs ksca kscb ksck kscs kska kskb kskk ksks kspa kspb kspc kspk ksps kssa ksss paak paap paas paba paca pack pacs paka paks papa papb papp paps pasa pasc pask pasp pass pbac pbcc pbpa pbpk pbsa pbsp pcaa pcap pcas pcba pcbc pcbs pcca pccc pccs pcks pcpb pcpp pcps pcsa pkcs ppac ppap ppcc ppcs pppa pppp ppps ppss psac psap psas psca pspp psps pssa pssc sa-c saab saac saak saap saas saba sabb sabc sabs saca sacc sack sacs saka sakb sakk saks sapa sapp saps sasa sasc sask sass sbaa sbac sbas sbbs sbca sbcc sbcs sbsa sbsp scaa scab scac scak scap scas scba sccc sccp sccs sck- scpa scpb scps scsa scsc skab skac skap skpc skss sp-a spac spak spap spas spca spcc spcs spps spsa spsp spss ssaa ssab ssac ssap ssas ssca sscc sscp sscs sspa sspc ssps sssa sssb sssc ssss

-aaa- -cpca a-a-p a-pac aaaas aaasa aaass aabaa aabba aabps aacap aacbc aacbp aaccp aacpa aacpp aacsa aacsb aacss abaab ababa ababs abaca aback abacs abaka abasa abask abass abbac abbas abcas abccc acaca acacb acack acapp acass accas akaba akasa akbas akkas apack apacs apapa apasa apass apcbc aps-c apsac asaak asaba asabc asack asaka asasa asbak asbca ascap askas asksa aspac aspak aspas aspca assab assac assas b-cas babak babas babbs babka babsk bacab bacas bacca back- backa backs bakka baksa basab basak basca baska basks baspa bassa bsaba bssap c-a-c c-p-c ca-ca caaba cabas cacak cacas cacks capab capac capas cappa capps capsa casas casca casks caspa ccaps ccass ccccc cpack csaba k-pac kaaba kaaks kabaa kabab kabak kabas kabba kabsa kakap kakas kakka kapaa kapak kapap kapas kapca kappa kasab kasak kasba kaska kassa pabas pacas packa packs pacsa pakaa papa- papak papas pappa papps pasab pasak pasca pasck paska pass- passa passk pcaas psapp psbaa saaba saabs saasa sabac sabak sabas sabca sabsa sacas sacc- sacca sacks sacsa sakac sakka saksa sapas sapca sappa sasak sasca saska sassa sback scabs scapa scaps sccbc scsaa ska-p skapa spaak spack spass spcas spkac sscac sssss

aaaaba ababsa abacab abacas abacks abakas abassa abbasa abbass abscss acasa ackack akaska akassa akbaba akkaba assaka baabaa babkas bacaba bacpac bacsap bapska bassac bbbbbb c-pass caback cabasa cacapa cakcak capasa casaba casbaa cascas cassab kaback kabaka kakkak kappas kapsas kasaba kasack kasasa kassab kpassa pabasa pappas paskac passas passca pppppp ppsspp sabaka sabbac sabbas sacaba sacasa sacsac sakaba sapsap sascab sass-c sassak spacks spassk ssabsa

aaa-cpa abbasak ack-ack