a-a a-b a-c aaa aab aac aah aao aas aau ab- aba abb abc abh abo abs abu ac- aca acb acc ach aco acs acu aha ahb ahc ahh aho ahs ahu aoa aob aoc aoh aoo aos aou as- asa asb asc ash aso ass asu au- aua aub auc auh auo aus b-u baa bab bac bah bao bas bau bba bbb bbc bbh bbo bbs bbu bca bcb bcc bch bco bcs bcu bha bhb bhc bhh bho bhs bhu boa bob boc boh boo bos bou bsa bsb bsc bsh bso bss bsu bua bub buc buh buo bus buu c-- caa cab cac cah cao cas cau cba cbb cbc cbh cbo cbs cbu cca ccb ccc cch cco ccs ccu ch- cha chb chc chh cho chs chu co- coa cob coc coh coo cos cou csa csb csc csh cso css csu cua cub cuc cuh cuo cus cuu haa hab hac hah hao has hau hba hbb hbc hbh hbo hbs hbu hca hcb hcc hch hco hcs hha hhb hhc hhh hho hhs hhu hoa hob hoc hoh hoo hos hou hsa hsb hsc hsh hss hsu hua hub huc huh huo hus huu oaa oab oac oah oao oas oau ob- oba obb obc obh obo obs obu oc- oca ocb occ och oco ocs ocu oha ohc ohh oho ohs ohu oo- ooa oob ooc ooh ooo oos os- osa osb osc osh oso oss osu ou- oua ouc ouh ouo ous saa sab sac sah sao sas sau sba sbb sbc sbh sbo sbs sbu sca scb scc sch sco scs scu sh- sha shb shc shh sho shs shu soa sob soc soh soo sos sou ss- ssa ssb ssc ssh sso sss ssu sua sub suc suh suo sus suu ua- uaa uab uac uah uao uas uau uba ubb ubc ubh ubo ubs ubu uca ucb ucc uch uco ucs ucu uha uhb uhc uhh uho uhs uhu uoa uob uoc uoo uos usa usb usc ush uso uss usu uua uuc uus uuu

-hou -ous a-ha aaaa aaab aaac aaah aaas aaba aabb aabc aabh aaca aacb aacc aach aaco aacs aacu aaha aahs aaoo aasa aasc aass aasu aaus abaa abab abac abas abau abb- abba abbb abbo abbs abca abcb abcc abch abcs abha abho abhs aboa abob aboh aboo abos abou abs- absa abss absu abua abus acaa acab acac acas acba acca accc acch acco accs accu acha achh acho achs achu acoa acoh acos acou acsa acsc acss acu- acuo acus ahab ahac ahah ahas ahau ahha ahhs ahoa ahsa ahso ahss ahua ahus aoah aoba aoca aocs aoss aous asaa asab asac asah asao asas asau asba asbo asbu asc- asca ascb ascc asch asco asha ashs ashu asob asoc asos asou assa assc assh asso asss assu asub asus auaa auca auch ausa aush ausu baaa baah baas baba babb babo babs babu bac- baca bacc bach baco bacs baha baho bahs bahu baoh baos basa basc bash baso bass basu bau- bbas bbau bbbb bbbs bbch bbhs bcaa bcas bcbc bcbs bcca bccc bccs bchs bcos bcsa bcsc bcss bcuc bhao bhca bhcc bhhs bhuu boab boac boas boba bobb bobo bobs bobu boca boch boco bocs bocu boha boho bohs bohu boob booc booh boos bosa bosc bosh boso boss bosu boua bouh bous bsaa bsac bsas bscs bshs bsos bssc buba bubb bubo bubs bubu buca bucc buch buco bucs bucu buha buho buhs busa busc bush buss busu buus c-bo caaa caab caac caah caas caba cabo cabs cabu cac- caca cacc cach caco caha cahs caos casa casb casc cash caso cass casu cauc cauo caus cbac cbbc cbbs cbca cbcc cbcs cbcu cbha cbhs cbsa cbsc cbus ccaa ccab ccac ccas ccba ccbc ccca cccb cccc cccs cccu ccha cchs ccob ccoc ccsa ccss ccuc ccus chaa chab chac chah chao chas chau chca chch chcs chha chhs choc choh choo chos chou chsc chsh chua chub chus coas coba cobb cobh cobo cobs cobu coca coch coco cocu coha coho cohs coob cooh coos cosa cosc cosh coso coss coua coub cous csaa csab csac csao csas cscb cscc csch csco cscs cshs csob csos cssa csua csus cuau cub- cuba cubb cubs cuca cucc cusa cusb cush cuso cuss cusu haab haas haba habo habs habu haco hacs haha haho hahs hasa hasc hash hass hau- haus hbbs hbhs hboc hbos hbss hcbc hcbs hcca hccb hccc hcch hccs hchs hcsa hcsc hcso hcss hhaa hhhh hhhs hhus hoac hoas hoba hobo hobs hoca hoch hocs hoha hoho hoos hosa hosh hoss hsac hsas hsbc hscc hshs hsob hsua huac huah huas huba hubb hubo hubs huch hucs hucu huhs huhu huos husa hush huso huss huub huus oaau oahs oahu oasc oass obas obba obbo obhs obos obss obuh obus ocab ocac ocas ocbc occa occc ocha ochs ocos ocsa ohau ohba ohcc ohho ohhs ohob ohoh ohos ohso ohss ohus ooaa ooba ooha ooho oohs oooh oooo ooos oosa oous osas osba osca oscc osco osha oshc osho oshs oshu osoo osos ossa ossb osso ossu ouac oubs oucc ouch ousa ouu- s-os sa-c saab saac saah saas saba sabb sabc sabo sabs sabu saca sacc saco sacs sacu saha saho sahs sahu saos saou sasa sasc sash saso sass saua sauc sauh saus sbaa sbac sbas sbbs sbca sbcc sbcs sbhc sbhs sbsa sbus scaa scab scac scas scba sccc sccs sch- scha schh scho schs scob scoh scoo scsa scsc scsh scso scsu scua scub shab shac shah shao shas shau shbs shca shcc shha shhh shhs shoa shoo shos shou shsc shua shub shus shuu soas soba sobo sobs sobu soca soch soco socs soha sohh soho sohs sohu soos sosa sosh soso soss sous ssaa ssab ssac ssao ssas ssau ssca sscc sscs sshs ssoc sssa sssb sssc sssh ssss suas sub-