a-a a-b a-c aaa aab aac aad aan aas ab- aba abb abc abd abn abs ac- aca acb acc acd acn acs ad- ada adb adc add adn ads an- ana anb anc and ann ans as- asa asb asc asd asn ass baa bab bac bad ban bas bba bbb bbc bbd bbn bbs bca bcb bcc bcd bcn bcs bda bdb bdc bdd bds bna bnb bnc bnd bnn bns bsa bsb bsc bsd bsn bss c-- caa cab cac cad can cas cba cbb cbc cbd cbn cbs cca ccb ccc ccd ccn ccs cda cdb cdc cdd cdn cds cn- cna cnb cnc cnd cnn cns csa csb csc csd csn css daa dab dac dad dan das dba dbb dbc dbd dbn dbs dca dcb dcc dcd dcn dcs dda ddb ddc ddd ddn dds dna dnb dnc dnd dnn dns dsa dsb dsc dsd dsn dss naa nab nac nad nan nas nba nbb nbc nbd nbn nbs nca ncb ncc ncd ncn ncs nda ndb ndc ndd ndn nds nna nnb nnc nnn nns nsa nsb nsc nsd nsn nss saa sab sac sad san sas sba sbb sbc sbd sbn sbs sca scb scc scd scn scs sda sdb sdc sdd sdn sds sna snb snc snd snn sns ss- ssa ssb ssc ssd ssn sss

-ana aaaa aaab aaac aaad aaan aaas aaba aabb aabc aabd aaca aacb aacc aacd aacn aacs aada aadc aads aana aand aasa aasc aasd aass abaa abab abac abad aban abas abb- abba abbb abbs abca abcb abcc abcd abcn abcs abda abs- absa absd abss acaa acab acac acad acan acas acba acca accc accd accs acda acdb acdc acds acsa acsc acsd acss adaa adab adac adad adan adas adba adbc adcc adcs adda addc addd addn adds adna adns adsa adss ana- anaa anab anac anad anan anas anba anbb anca ancc and- anda ands anna annb anns ansa ansd asaa asab asac asad asan asas asba asc- asca ascb ascc asda asds asnc assa assc assd assn asss baaa baad baan baas baba babb babs bac- baca bacc bacn bacs bada badb badd bads bana banc band bann bans basa basc bass bbad bbas bbbb bbbs bbdd bcaa bcas bcbc bcbs bcca bccc bccs bcda bcds bcsa bcsc bcsn bcss bdbc bddc bdna bdsd bnas bnss bsaa bsac bsas bsbd bscs bsnd bsns bssc bssd c-cd caaa caab caac caan caas caba cabs cac- caca cacc cada cadc cadd cads cana canc cand cann cans casa casb casc casd cass cbac cbbc cbbs cbca cbcc cbcn cbcs cbdb cbdc cbdn cbds cbna cbnd cbsa cbsc cbsn ccaa ccab ccac ccad ccas ccba ccbc ccbn ccca cccb cccc cccs ccdc ccdn ccds ccna ccnb ccnc ccns ccsa ccsd ccsn ccss cdaa cdac cdad cdba cdcs cdda cddb cdna cdnb cdnc cdss cnaa cnac cnas cnbc cnda cndd cnna cnsa cnss csaa csab csac csas cscb cscc cscd cscs csda csdb csdn cssa cssd d-na daab daad daan daas daba dabb dabs daca dacs dada dads dana dand dann dans dasa dasb dasc dasd dass dbas dbcc dbcs dbsa dbss dcas dcbc dcca dccb dccc dccs dcdb dcds dcns dcsc dcss dddd ddss dnaa dnab dnac dnad dnan dnas dncs dnsa dnsc dsac dsba dsbc dscc dscn dscs dsda dssa dssc dssn naaa naab naac naad naan naas naba nabc nabs naca nacc nacd nacs nada nadc nads nan- nana nanb nand nann nans nas- nasa nasb nasc nasd nass nbaa nbad nbas nbbc nbca nbcc nbcs ncaa ncac ncba ncbc ncbs ncca nccc nccn nccs ncda ncdc ncdn ncds ncna ncnc ncnd ncsa ncsc ncss ndaa ndas ndcc ndcs nddb ndna ndss nndb nnnn nnsa nnss nsaa nsac nsca nscc nscd nscs nsds nsna nssa nssb nssc nsss sa-c saab saac saad saan saas saba sabb sabc sabs saca sacc sacd sacn sacs sada sadb sadc sadd sads sana sand sann sans sasa sasc sasd sass sbaa sbac sbas sbbs sbca sbcc sbcs sbds sbsa sbsd scaa scab scac scad scan scas scba sccc sccs scda scdc scds scna scnd scsa scsc scsd scsn sdba sdcc sddc sdds sdna sdsc sdss snab snad snas snba snca sncc snda snns snsd ssaa ssab ssac ssan ssas ssbn ssca sscc sscs ssdc ssdd ssns sssa sssb sssc ssss

-aaa- -abad a-dna aaaas aaadc aaasa aaass aabaa aabba aacbc aacsa aacsb aacss aadac aadas abaab ababa ababs abaca abacs abada abana abanc aband abann abasa abass abbac abbad abban abbas abcan abcas abccc abcdb abdan acaca acacb acads acana acass accad accas acdcs acsad acsdc adaba adada adads adana adanc adasa addas addsa adnan adnas ads-b anaba anana anand anasa anass anban andab andac andad andan andas annan annas ansac ansan ansca asaba asabc asada asana asasa asbad asbca ascan asdas asnan asnas assab assac assad assan assas assns b-cas b-dna baban babas babbs babns bacab bacas bacca badan badas badna banan banas banba banca bancs banda bandb bandn bands banna banns bansa basab basad basan basca basna bassa bsaba c-a-c c-dna ca-ca caaan caaba caans caban cabas cacas cadac canan canas canda cands canna casas casca ccand ccass ccccc cccsd cdand cdnas cnnnn cnsad csaba d-a-d daada daana daasa daban dabas dabba dabbs dacca dadas dadda dadna danan danas danda dandd dands danna dansa dasca dasds dasna dassa dccab ddddd dsdna naans naban nabas nabba nacaa nacac nacba naccc nacda nacna nadab nadan nadas nanan nanas nanda nann- nanna nasaa nasan nasba nasca nasda nassa nbcsn ncaas ndana nsaba nsasa nssnd saaba saabs saada saana saand saans saasa sabac saban sabas sabca sabda sabsa sac-d sacan sacas sacc- sacca sacsa sadad sadan sadas sadda sanaa sanad sanas sanba sanda sandd sands sanna sanns sansa sasan sasca sasda sasna sassa scabs scada scads scana scand scans sccbc scdsb scsaa snabs snads snasa sncac sncan sscac ssdna sssss

aaaaba aasaan abaana ababda ababsa abacab abacas abadan abadas abanca abanda abands abassa abbana abbasa abbass abdabs