-er a-a a-b a-c aaa aab aac aae aar aas ab- aba abb abc abe abr abs ac- aca acb acc ace acr acs aea aeb aec aee aer aes ar- ara arb arc are arr ars as- asa asb asc ase asr ass baa bab bac bae bar bas bba bbb bbc bbe bbr bbs bca bcb bcc bce bcr bcs be- bea beb bec bee ber bes bra brb bre brr brs bsa bsb bsc bse bsr bss c-- caa cab cac cae car cas cba cbb cbc cbe cbr cbs cca ccb ccc cce ccr ccs ce- cea ceb cec cee cer ces cra crb crc cre crr crs csa csb csc cse csr css eaa eab eac eae ear eas eba ebb ebc ebe ebr ebs ec- eca ecb ecc ece ecr ecs eea eeb eec eee eer ees era erb erc ere err ers es- esa esb esc ese esr ess ra- raa rab rac rae rar ras rba rbb rbc rbe rbr rbs rca rcb rcc rce rcr rcs re- rea reb rec ree rer res rra rrb rrc rrr rrs rsa rsb rsc rse rsr rss saa sab sac sae sar sas sba sbb sbc sbe sbr sbs sca scb scc sce scr scs se- sea seb sec see ser ses sr- sra srb src sre srr srs ss- ssa ssb ssc sse ssr sss

-ase a-be aaaa aaab aaac aaae aaar aaas aaba aabb aabc aaca aacb aacc aace aacr aacs aaea aaec aaes aara aarc aare aars aasa aasc aase aass abaa abab abac abae abar abas abb- abba abbb abbe abbr abbs abca abcb abcc abcr abcs abec abee aber abes abra abrc abrs abs- absa abse abss acaa acab acac acae acar acas acba acca accc acce accs ace- acea acec acer aces acr- acra acrc acre acrr acrs acsa acsc acse acss aeac aeas aebs aecb aeer aer- aera aerc aers aesc aess arab arac arae arar aras arba arbe arbs arc- arca arce arcs area arec aree ares arr- arra arrc arre arrr arrs ars- arsa arsc arse asaa asab asac asae asar asas asba asc- asca ascb ascc asce ascr asea asec asee aser ases asra asrc asrs assa assc asse assr asss baaa baar baas baba babb babe babr babs bac- baca bacc bace bacs baer baes bar- bara barb barc bare barr bars basa basc base bass bbas bbbb bbbs bbeb bbrc bcaa bcar bcas bcbc bcbs bcca bccc bccs bcec bcer bces bcra bcrs bcsa bcsc bcss bear beas beba bebb bebe beca becs beeb beer bees bera berc bere berr bers bes- besa bese bess brab brac brae bras brca brcb brce brea breb brec bree brer bres brrr brrs brsb brsr bsaa bsac bsas bscs bsea bseb bsec bsee bser bses bsra bssc bsse caaa caab caac caas caba cabe cabs cac- caca cacc cace cacr caec caer caes cara carb carc care carr cars casa casb casc case casr cass cbac cbar cbbc cbbs cbca cbcc cbce cbcr cbcs cbea cbec cbee cber cbre cbsa cbsc cbse ccaa ccab ccac ccar ccas ccba ccbc ccca cccb cccc cccs ccee ccra ccrc ccre ccrs ccsa ccss ceac cear ceas ceba cebs cec- ceca cece cecs ceeb ceec cees cer- cera cerc cere cers cesa cesc cese cesr cess crab crac crar cras crbc crca crcc crce crcr cre- crea creb crec cree cres crsa crss csaa csab csac csar csas cscb cscc csce cscr cscs csea csec csee cser csra csrc csrs cssa csse cssr eaba eaca eacc eaec eara earb eare ears easa ease ebac ebba ebbc ebbr ebbs ebcc eber ebes ebsa ecaa ecac ecar ecbc ecbe ecca eccb eccc ecce eces ecra ecrc ecrr ecsa ecsc ecse ecss eeca eecs eeea eeee eees eera eerc eers eese eras erba erbb erbe erca ercc erce ereb erec erer eres erra errc erre errs ersa erse esab esac esar esas esba esbs esca escb esce escr escs esea esee eser eses esra essa esse raab raas raba rabb rabe rabs rac- raca racc race racs raec raer raes rara rarb rare rars rasa rasc rase rass rbbb rbbr rbbs rbss rcac rcas rcbc rccb rccc rccs rcsa rcsc rcss rea- reac reae rear reas reba rebb rebe rebs reca recc rece recr recs reeb rees rera rere rers resa rese ress rras rrrr rsaa rscc rscs rsee rsre rssa sa-c saab saac saae saar saas saba sabb sabc sabe sabr sabs saca sacc sace sacr sacs saeb saer saes sara sarc sare sarr sars sasa sasc sase sass sbaa sbac sbar sbas sbbs sbca sbcc sbcs sber sbsa sbse scaa scab scac scar scas scba sccc scce sccs scea scec scee scer scr- scra scrc scre scrs scsa scsc scsr se-c se-e se-s seaa seab seac sear seas seba sebe sebs sec- seca secc sece secr secs seea seeb seec seer sees sera serb serc sere serr sers sesa sesc sese sess sras srbc srcc sreb srec sres ssaa ssab ssac ssas ssbr ssca sscc ssce sscs ssec ssee sses ssra ssrc ssrs sssa sssb sssc ssss

-aaa- a-sea aaaas aaace aaaee aaarc aaasa aaass aabaa aabba aabra aacbc aaces aacsa aacsb aacss aasee aasra abaab ababa ababe ababs abaca abacs abaer abara abare abasa abase abass abbac abbar abbas abbes abbrs abcas abccc abear abeba abebe abece abeer abees abera abere aberr abrac abrar abras abres absar absee acaca acacb acar- acara acare acars acase acass accas accra aceae acera acerb acers acrab acrea acree acres aeaea aebbe aeres ar-ab ara-c arab- araba arabe arabs araca arace araea arara arare arars arase arass arbab arbar arbas arbee arber arbre arcae arcas arcee arces areae arear areas areca arees arere arese arras arrea arres arsac arses asaba asabc asara asare asasa asbca ascar asce- ascea asear aseer asere asers asrar assab assac assas assce asse- asser asses b-cas baabe baars babar babas babbs babec babee baber babes babra bacab bacar