a-a a-b a-c aaa aab aac aae aak aao aas ab- aba abb abc abe abk abo abs ac- aca acb acc ace ack aco acs aea aeb aec aee aek aeo aes aka akb akc ake akk ako aks aoa aob aoc aoe aok aoo aos as- asa asb asc ase ask aso ass baa bab bac bae bak bao bas bba bbb bbc bbe bbk bbo bbs bca bcb bcc bce bck bco bcs be- bea beb bec bee bek beo bes bka bkb bkc bke bkk bko bks boa bob boc boe bok boo bos bsa bsb bsc bse bsk bso bss c-- caa cab cac cae cak cao cas cba cbb cbc cbe cbk cbo cbs cca ccb ccc cce cck cco ccs ce- cea ceb cec cee cek ceo ces cka ckb ckc cko cks co- coa cob coc coe cok coo cos csa csb csc cse csk cso css eaa eab eac eae eak eao eas eba ebb ebc ebe ebk ebo ebs ec- eca ecb ecc ece eck eco ecs eea eeb eec eee eek eeo ees eka ekb ekc eke eko eks eo- eoa eob eoc eoe eok eoo eos es- esa esb esc ese esk eso ess ka- kaa kab kac kae kak kao kas kba kbb kbc kbe kbk kbo kbs kca kcb kcc kce kck kcs ke- kea keb kec kee kek keo kes kkb kkc kke kkk kks koa kob koc koe kok koo kos ksa ksb ksc kse ksk kso kss oaa oab oac oae oak oao oas ob- oba obb obc obe obk obo obs oc- oca ocb occ ock oco ocs oea oeb oec oee oeo oes oka okb okc oke okk oko oks oo- ooa oob ooc ook ooo oos os- osa osb osc ose osk oso oss saa sab sac sae sak sao sas sba sbb sbc sbe sbk sbo sbs sca scb scc sce sck sco scs se- sea seb sec see sek seo ses sk- ska skb skc ske skk sko sks soa sob soc soe sok soo sos ss- ssa ssb ssc sse ssk sso sss

-ase -ose a-ak a-be a-ok aaaa aaab aaac aaae aaas aaba aabb aabc aaca aacb aacc aace aack aaco aacs aaea aaec aaes aaka aake aaoe aaoo aasa aasc aase aass abaa abab abac abae abak abas abb- abba abbb abbe abbo abbs abca abcb abcc abcs abec abee abes aboa abob abok aboo abos abs- absa abse abss acaa acab acac acae acas acba acca accc acce acco accs ace- acea acec acek aces acke acks acoa acoe acos acsa acsc acse acss aeac aeas aebs aecb aeka aesc aess akaa akae akao akas akca akee akes akka akko akok akos aksa aoba aoca aoce aocs aoks aoss asaa asab asac asae asak asao asas asba asbo asc- asca ascb ascc asce asco asea asec asee asek ases aska aske asko asks asob asoc asok asos assa assc asse assk asso asss baaa baak baas baba babb babe babo babs bac- baca bacc bace back baco bacs baek baes bak- baka bake bako baks baos basa basc base bask baso bass bbas bbbb bbbs bbeb bcaa bcas bcbc bcbs bcca bccc bccs bcec bces bcos bcsa bcsc bcss beak beas beba bebb bebe bebo beca beck becs beeb beek bees beka beke beko beks beo- beok beos bes- besa bese besk beso bess boab boac boak boas boba bobb bobe bobo bobs boca boce bock boco bocs boea boec boee boeo boes boka boke boko boks boob booc booe book boos bosa bosc bose bosk boso boss bsaa bsac bsas bscs bsea bseb bsec bsee bses bsos bssc bsse c-bo caaa caab caac caas caba cabe cabo cabs cac- caca cacc cace cack caco caec caes caka cake caos casa casb casc case cask caso cass cbac cbbc cbbs cbca cbcc cbce cbcs cbea cbec cbee cbka cbko cbsa cbsc cbse ccaa ccab ccac ccas ccba ccbc ccca cccb cccc cccs ccee ccob ccoc ccsa ccss ceac ceas ceba cebs cec- ceca cece ceco cecs ceeb ceec cees ceke ceos cesa cesc cese cess ckac ckbc ckbe ckck ckco ckcs ckoa ckob ckoc ckoo ckos cksa cksb ckso coak coas coba cobb cobe cobo cobs coca coce cock coco coes cok- coka coke coko coob cook coos cosa cosc cose coso coss csaa csab csac csak csao csas cscb cscc csce csco cscs csea csec csee cska csks csob csos cssa csse eaba eaca eacc eaec easa ease easo ebac ebba ebbc ebbo ebbs ebcc ebes eboe eboo ebos ebsa ecaa ecac ecao ecbc ecbe ecca eccb eccc ecce ecco eces ecka ecko ecks eco- ecos ecsa ecsc ecse ecss eeca eecs eeea eeee eees eeka eeke eeks eeoc eese eesk eka- ekab ekco ekeb ekek ekes ekka ekoa ekos eoes eoka esab esac esas esba esbo esbs esca escb esce esco escs esea esee esek eseo eses eska eske esko esks eso- esok esos essa esse esso k-os kaaa kaab kaak kaas kaba kabb kabc kabe kabo kacb kacc kace kaco kacs kaeo kaes kaka kakc kake kakk kako kaks kaoa kaoc kaok kaos kas- kasa kasb kasc kase kask kaso kass kbaa kbab kbac kbae kbak kbas kbba kbbb kbbc kbbe kbbk kbbo kbbs kbca kbcb kbce kbck kbco kbcs kbeb kbec kbee kbek kbeo kbes kbkb kbkk kbko kboa kbob kboc kboe kbok kboo kbos kbsa kbsb kbsk kbso kbss kcaa kcab kcac kcas kcba kcbc kcbk kcbs kcca kccb kccc kcck kcea kceb kcec kcee kceo kckc kckk kcko kcob kcoe kcos kcsa kcsb kcsc kcse kcss kea- keak keas keba kebb kebc kebe keca keck keco keek kees keka kekb kekc keke keko keks keok keos kesa kesb kesc kesk keso kess kkaa kkac kkba kkbb kkbe kkbo kkbs kkcb kkck kkco kkcs kkea kkkk kkoa kkob kkoo kksa kkse kkss koab koac koae koak koas koba kobb kobc kobe kobk kobo kobs koca kocb kock kocs koea