a-a a-b a-c aaa aab aac aao aas aau ab- aba abb abc abo abs abu ac- aca acb acc aco acs acu aoa aob aoc aoo aos aou as- asa asb asc aso ass asu au- aua aub auc auo aus b-u baa bab bac bao bas bau bba bbb bbc bbo bbs bbu bca bcb bcc bco bcs bcu boa bob boc boo bos bou bsa bsb bsc bso bss bsu bua bub buc buo bus buu c-- caa cab cac cao cas cau cba cbb cbc cbo cbs cbu cca ccb ccc cco ccs ccu co- coa cob coc coo cos cou csa csb csc cso css csu cua cub cuc cuo cus cuu oaa oab oac oao oas oau ob- oba obb obc obo obs obu oc- oca ocb occ oco ocs ocu oo- ooa oob ooc ooo oos os- osa osb osc oso oss osu ou- oua ouc ouo ous saa sab sac sao sas sau sba sbb sbc sbo sbs sbu sca scb scc sco scs scu soa sob soc soo sos sou ss- ssa ssb ssc sso sss ssu sua sub suc suo sus suu ua- uaa uab uac uao uas uau uba ubb ubc ubo ubs ubu uca ucb ucc uco ucs ucu uoa uob uoc uoo uos usa usb usc uso uss usu uua uuc uus uuu

-ous aaaa aaab aaac aaas aaba aabb aabc aaca aacb aacc aaco aacs aacu aaoo aasa aasc aass aasu aaus abaa abab abac abas abau abb- abba abbb abbo abbs abca abcb abcc abcs aboa abob aboo abos abou abs- absa abss absu abua abus acaa acab acac acas acba acca accc acco accs accu acoa acos acou acsa acsc acss acu- acuo acus aoba aoca aocs aoss aous asaa asab asac asao asas asau asba asbo asbu asc- asca ascb ascc asco asob asoc asos asou assa assc asso asss assu asub asus auaa auca ausa ausu baaa baas baba babb babo babs babu bac- baca bacc baco bacs baos basa basc baso bass basu bau- bbas bbau bbbb bbbs bcaa bcas bcbc bcbs bcca bccc bccs bcos bcsa bcsc bcss bcuc boab boac boas boba bobb bobo bobs bobu boca boco bocs bocu boob booc boos bosa bosc boso boss bosu boua bous bsaa bsac bsas bscs bsos bssc buba bubb bubo bubs bubu buca bucc buco bucs bucu busa busc buss busu buus c-bo caaa caab caac caas caba cabo cabs cabu cac- caca cacc caco caos casa casb casc caso cass casu cauc cauo caus cbac cbbc cbbs cbca cbcc cbcs cbcu cbsa cbsc cbus ccaa ccab ccac ccas ccba ccbc ccca cccb cccc cccs cccu ccob ccoc ccsa ccss ccuc ccus coas coba cobb cobo cobs cobu coca coco cocu coob coos cosa cosc coso coss coua coub cous csaa csab csac csao csas cscb cscc csco cscs csob csos cssa csua csus cuau cub- cuba cubb cubs cuca cucc cusa cusb cuso cuss cusu oaau oasc oass obas obba obbo obos obss obus ocab ocac ocas ocbc occa occc ocos ocsa ooaa ooba oooo ooos oosa oous osas osba osca oscc osco osoo osos ossa ossb osso ossu ouac oubs oucc ousa ouu- s-os sa-c saab saac saas saba sabb sabc sabo sabs sabu saca sacc saco sacs sacu saos saou sasa sasc saso sass saua sauc saus sbaa sbac sbas sbbs sbca sbcc sbcs sbsa sbus scaa scab scac scas scba sccc sccs scob scoo scsa scsc scso scsu scua scub soas soba sobo sobs sobu soca soco socs soos sosa soso soss sous ssaa ssab ssac ssao ssas ssau ssca sscc sscs ssoc sssa sssb sssc ssss suas sub- suba subb subo subs suc- succ sucs suos sus- susa suso suss susu suus uabc uaca uaoc uasa uaua ubac ubba ubbo uboc ubos ucas ucbc ucca ucos ucsa ucsb ucsc ucsu ucua uocc us-a usaa usac usas usba usbc usbs usca uscc usco uscs usoc usos ussa ussb ussc usss ussu usua usus uuoc uuuu

-aaa- aaaas aaaoc aaasa aaass aabaa aabba aacbc aacos aacsa aacsb aacss aacus abaab ababa ababs ababu abaca abaco abacs abasa abass abbac abbas abbos abbou abcas abccc aboab abobo aboso abous acaca acacb acass acaua accas accub accus acoss acou- acoua acouo acuba acusa aoos asaba asabc asaco asasa asbca asbos ascao asco- ascou ascus asocs asosa assab assac assas assoa assoc assos asubs auass aubas aucas aussa b-cas babas babau babbs baboo babos babou babus bacab bacao bacas bacca bacco bacos bacu basab basca basco baso- bassa basso bassu basuo baubo bbuss bo-bo boaco bobac boboc bobos bocac bocao bocas bocca bocoa bocsa bocus booba boobs booco boosa bosas bosau bosco boscs bossa bosso bouba bouca bsaba bscco bsous bubas bubba bucca bucco bucsa bucsu busaa busca bussa busso bussu busua busuu c-a-c c-bus ca-ca caaba cabas cabob caboc cabos cabus cacao cacas cacau caco- cacoa cacso cacu cacus caoba casas casca casco casos casso casus cauac cauas cauca cauco causa ccass ccccc co-bo co-co cobas cobbs cobus cocao cocas cocc- cocco cocoa cocos cocus cooba coosa cos-b cosas cosca cosco couac couas couba couco csaba csobs cuaba cubao cubas cubo- cubub cuoco cusco cusso obaba ocaus occas oocss ooooo ososo ossos osusu ousas s-bus saaba saabo saabs saasa saasu sabac sabas sabau sabca saboo sabou sabsa sabus sacas sacc- sacca sacco sacos sacsa saoco sasca sasco sassa sasso sauba sauca scabs sccbc scobs scoob scosa scsaa scuba scusa so-so sobao socca socus sosas soss- sosua sosus souba sous- sousa sscac sssss suasa subba subbu subos subss sucua susac susso susus ubacs ubobo us-sc usaas usabc uscoc ussac usuba uuuuu

aaaaba aaaocs aacobs aacubo ababou ababsa abacab abacas abacos abacus abassa abbasa abbass aboaso abscss abubus abucco abusua acacus acasa accous acouo- ascaso assacu assaou aubous aucuba ausbbs aussac aussos ausubo baabaa babaco babacu baboos baboso baboua bacaba bacau baccus baobab bassac bassos bassou bassus baucau bbbbbb boabab boasso bobbau bobbos boccob bococa booboo boossa bosaca bosaso bososo bossou