a-a a-b a-c aaa aab aac aak aas ab- aba abb abc abk abs ac- aca acb acc ack acs aka akb akc akk aks as- asa asb asc ask ass baa bab bac bak bas bba bbb bbc bbk bbs bca bcb bcc bck bcs bka bkb bkc bkk bks bsa bsb bsc bsk bss c-- caa cab cac cak cas cba cbb cbc cbk cbs cca ccb ccc cck ccs cka ckb ckc cks csa csb csc csk css ka- kaa kab kac kak kas kba kbb kbc kbk kbs kca kcb kcc kck kcs kkb kkc kkk kks ksa ksb ksc ksk kss saa sab sac sak sas sba sbb sbc sbk sbs sca scb scc sck scs sk- ska skb skc skk sks ss- ssa ssb ssc ssk sss

a-ak aaaa aaab aaac aaas aaba aabb aabc aaca aacb aacc aack aacs aaka aasa aasc aass abaa abab abac abak abas abb- abba abbb abbs abca abcb abcc abcs abs- absa abss acaa acab acac acas acba acca accc accs acks acsa acsc acss akaa akas akca akka aksa asaa asab asac asak asas asba asc- asca ascb ascc aska asks assa assc assk asss baaa baak baas baba babb babs bac- baca bacc back bacs bak- baka baks basa basc bask bass bbas bbbb bbbs bcaa bcas bcbc bcbs bcca bccc bccs bcsa bcsc bcss bsaa bsac bsas bscs bssc caaa caab caac caas caba cabs cac- caca cacc cack caka casa casb casc cask cass cbac cbbc cbbs cbca cbcc cbcs cbka cbsa cbsc ccaa ccab ccac ccas ccba ccbc ccca cccb cccc cccs ccsa ccss ckac ckbc ckck ckcs cksa cksb csaa csab csac csak csas cscb cscc cscs cska csks cssa kaaa kaab kaak kaas kaba kabb kabc kacb kacc kacs kaka kakc kakk kaks kas- kasa kasb kasc kask kass kbaa kbab kbac kbak kbas kbba kbbb kbbc kbbk kbbs kbca kbcb kbck kbcs kbkb kbkk kbsa kbsb kbsk kbss kcaa kcab kcac kcas kcba kcbc kcbk kcbs kcca kccb kccc kcck kckc kckk kcsa kcsb kcsc kcss kkaa kkac kkba kkbb kkbs kkcb kkck kkcs kkkk kksa kkss ksab ksac ksak ksas ksba ksbc ksbs ksca kscb ksck kscs kska kskb kskk ksks kssa ksss sa-c saab saac saak saas saba sabb sabc sabs saca sacc sack sacs saka sakb sakk saks sasa sasc sask sass sbaa sbac sbas sbbs sbca sbcc sbcs sbsa scaa scab scac scak scas scba sccc sccs sck- scsa scsc skab skac skss ssaa ssab ssac ssas ssca sscc sscs sssa sssb sssc ssss

-aaa- aaaas aaasa aaass aabaa aabba aacbc aacsa aacsb aacss abaab ababa ababs abaca aback abacs abaka abasa abask abass abbac abbas abcas abccc acaca acacb acack acass accas akaba akasa akbas akkas asaak asaba asabc asack asaka asasa asbak asbca askas asksa assab assac assas b-cas babak babas babbs babka babsk bacab bacas bacca back- backa bakka baksa basab basak basca baska basks bassa bsaba c-a-c ca-ca caaba cabas cacak cacas cacks casas casca casks ccass ccccc csaba kaaba kaaks kabaa kabab kabak kabas kabba kabsa kakas kakka kasab kasak kasba kaska kassa saaba saabs saasa sabac sabak sabas sabca sabsa sacas sacc- sacca sacks sacsa sakac sakka saksa sasak sasca saska sassa sback scabs sccbc scsaa sscac sssss

aaaaba ababsa abacab abacas abacks abakas abassa abbasa abbass abscss acasa ackack akaska akassa akbaba akkaba assaka baabaa babkas bacaba bassac bbbbbb caback cabasa cakcak casaba casbaa cascas cassab kaback kabaka kakkak kasaba kasack kasasa kassab sabaka sabbac sabbas sacaba sacasa sacsac sakaba sascab sass-c sassak ssabsa

abbasak ack-ack ackacks akasaka bac-cab bbbbbbb cabback casabas caska cassaba kabakas kacabac kas-kas sssssss

ack-acks bbbbbbbb cassabas sac-back sakasaka

abakabaka assabaska baabaabaa

casabababa

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb ccccccccccccccc