a-a a-b a-c aaa aab aac aao aar aas aaw ab- aba abb abc abo abr abs abw ac- aca acb acc aco acr acs acw aoa aob aoc aoo aor aos aow ar- ara arb arc aro arr ars arw as- asa asb asc aso asr ass asw aw- awa awb awc awo awr aws aww baa bab bac bao bar bas baw bba bbb bbc bbo bbr bbs bbw bca bcb bcc bco bcr bcs boa bob boc boo bor bos bow bra brb bro brr brs brw bsa bsb bsc bso bsr bss bsw bwa bwb bwc bwo bwr bws c-- caa cab cac cao car cas caw cba cbb cbc cbo cbr cbs cbw cca ccb ccc cco ccr ccs ccw co- coa cob coc coo cor cos cow cra crb crc cro crr crs crw csa csb csc cso csr css csw cw- cwa cwb cwc cwo cwr cws oaa oab oac oao oar oas oaw ob- oba obb obc obo obr obs obw oc- oca ocb occ oco ocr ocs ocw oo- ooa oob ooc ooo oor oos oow or- ora orb orc oro orr ors os- osa osb osc oso osr oss osw owa owb owc owo ows oww ra- raa rab rac rao rar ras raw rba rbb rbc rbo rbr rbs rbw rca rcb rcc rco rcr rcs rcw roa rob roc roo ror ros row rra rrb rrc rrr rrs rsa rsb rsc rso rsr rss rsw rwa rwb rwc rwr rws saa sab sac sao sar sas saw sba sbb sbc sbo sbr sbs sbw sca scb scc sco scr scs scw soa sob soc soo sor sos sow sr- sra srb src sro srr srs srw ss- ssa ssb ssc sso ssr sss ssw swa swb swc swo swr sws waa wab wac wao war was waw wba wbb wbc wbo wbr wbs wbw wca wcb wcc wco wcr wcs wcw woa wob woc woo wor wos wow wr- wra wrc wro wrr wrs wrw wsa wsb wsc wso wsr wss wsw wwa wwc wwo www

a-wa aaaa aaab aaac aaar aaas aaba aabb aabc aabw aaca aacb aacc aaco aacr aacs aaoo aaow aara aarc aaro aars aasa aasc aass aaww abaa abab abac abar abas abaw abb- abba abbb abbo abbr abbs abca abcb abcc abcr abcs abcw aboa abob aboo abor abos abow abra abrc abro abrs abs- absa abss absw abwa abwr acaa acab acac acar acas acba acca accc acco accs acoa acor acos acow acr- acra acrc acro acrr acrs acsa acsc acss acsw acwa acww aoba aoca aocs aora aorb aors aoss arab arac arar aras araw arba arbs arc- arca arco arcs aroa arob aroo aror aros arow arr- arra arrc arro arrr arrs ars- arsa arsc arso arwa asaa asab asac asao asar asas asba asbo asc- asca ascb ascc asco ascr ascw asob asoc asor asos asow asra asrc asro asrs assa assc asso assr asss awac awar awas awoo awow awro awss awwa awws baaa baar baas baba babb babo babr babs bac- baca bacc baco bacs baos bar- bara barb barc baro barr bars basa basc baso bass baw- baws bbas bbbb bbbs bbrc bbwc bbwr bbws bcaa bcar bcas bcbc bcbs bcca bccc bccs bcor bcos bcra bcrs bcsa bcsc bcss boab boac boar boas boba bobb bobo bobs bobw boca boco bocs boob booc boor boos boow bor- bora boro borr bors borw bosa bosc boso boss bowa bowr bows brab brac brao bras braw brca brcb brcw broa brob broc broo bror bros brow brrr brrs brsb brsr bsaa bsac bsas bsaw bscs bsos bsra bssc bwaa bwoc c-bo caaa caab caac caas caba cabo cabs cac- caca cacc caco cacr cacw caor caos cara carb carc caro carr cars casa casb casc caso casr cass caws cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbsa cbsc cbwa ccaa ccab ccac ccar ccas ccba ccbc ccca cccb cccc cccs ccob ccoc ccow ccra ccrc ccrs ccsa ccss coas coba cobb cobo cobs coca coco coob coos cor- cora corb corc coro corr cors cosa cosc coso coss cows crab crac crar cras craw crbc crca crcc crcr crob croc croo cror crow crsa crss csaa csab csac csao csar csas cscb cscc csco cscr cscs csob csor csos csra csrc csrs cssa cssr csws cwac cwos cwrw oara oars oasc oass obas obba obbo obor obos obra obro obsr obss ocab ocac ocas ocbc occa occc ocos ocra ocro ocrr ocrs ocsa ocsw ooaa ooba oocr oooo ooos oora oosa orab orac orao orar oras orba orbb orbo orbs orca orco orcs oro- oror oros orra orro orrs orsa orso orwa orwo osar osas osba osca oscc osco osoo osor osos osow osro ossa ossb osso owar owow owsa owwa raab raas raba rabb rabo rabs rac- raca racc raco racs raob raoc raos rara rarb raro rars rasa rasc raso rass rawa rawr raws raww rbbb rbbr rbbs rbss rcac rcas rcbc rcbo rccb rccc rccs rcos rcsa rcsc rcss roab roar roas rob- roba robb robo robs roca rocc roco rocs roob roor roos rora rorc roro rosa rosc roso ross rowa rowb rowr rows roww rras rrrr rsaa rscc rscs rsos rssa rwcs s-os sa-c saab saac saar saas saba sabb sabc sabo sabr sabs saca sacc saco sacr sacs saor saos sara sarc saro sarr sars sasa sasc saso sass sawa saws sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbor sbsa sbwr scaa scab scac scar scas scaw scba sccc sccs scob scoo scor scow scr- scra scrc scrs scsa scsc scso scsr soar soas soaw soba sobo sobr sobs soca soco socr socs soor soos sora sorb soro sorr sors sosa soso soss sowa sowr sows sras sraw srbc srcc sros ssaa ssab ssac ssao ssas ssaw ssbr ssca sscc sscs ssoc ssra ssrc ssrs sssa sssb sssc ssss ssws swab swac swar swas swbc swbs swbw