a-a a-b a-c aaa aab aac aae aaf aak aao aas ab- aba abb abc abe abf abk abo abs ac- aca acb acc ace acf ack aco acs aea aeb aec aee aef aek aeo aes af- afa afb afc afe aff afk afo afs aka akb akc ake akk ako aks aoa aob aoc aoe aof aok aoo aos as- asa asb asc ase asf ask aso ass baa bab bac bae baf bak bao bas bba bbb bbc bbe bbf bbk bbo bbs bca bcb bcc bce bcf bck bco bcs be- bea beb bec bee bef bek beo bes bfa bfb bfc bfe bff bfo bfs bka bkb bkc bke bkf bkk bko bks boa bob boc boe bof bok boo bos bsa bsb bsc bse bsf bsk bso bss c-- caa cab cac cae caf cak cao cas cba cbb cbc cbe cbf cbk cbo cbs cca ccb ccc cce ccf cck cco ccs ce- cea ceb cec cee cef cek ceo ces cfa cfb cfc cfe cff cfk cfo cfs cka ckb ckc cko cks co- coa cob coc coe cof cok coo cos csa csb csc cse csf csk cso css eaa eab eac eae eaf eak eao eas eba ebb ebc ebe ebf ebk ebo ebs ec- eca ecb ecc ece ecf eck eco ecs eea eeb eec eee eef eek eeo ees ef- efa efb efc efe eff efo efs eka ekb ekc eke ekf eko eks eo- eoa eob eoc eoe eof eok eoo eos es- esa esb esc ese esf esk eso ess faa fab fac fae faf fak fao fas fba fbb fbc fbe fbf fbk fbo fbs fca fcb fcc fce fcf fck fco fcs fea feb fec fee fef fek feo fes ffa ffc ffe fff ffk ffo ffs fka fkb fkc fkf fkk foa fob foc foe fof fok foo fos fsa fsb fsc fse fsf fsk fso fss ka- kaa kab kac kae kaf kak kao kas kba kbb kbc kbe kbf kbk kbo kbs kca kcb kcc kce kck kcs ke- kea keb kec kee kef kek keo kes kfa kfc kff kfo kfs kkb kkc kke kkk kks koa kob koc koe kof kok koo kos ksa ksb ksc kse ksf ksk kso kss oaa oab oac oae oaf oak oao oas ob- oba obb obc obe obf obk obo obs oc- oca ocb occ ocf ock oco ocs oea oeb oec oee oef oeo oes of- ofa ofb ofc ofe off ofo ofs oka okb okc oke okk oko oks oo- ooa oob ooc oof ook ooo oos os- osa osb osc ose osf osk oso oss saa sab sac sae saf sak sao sas sba sbb sbc sbe sbf sbk sbo sbs sca scb scc sce scf sck sco scs se- sea seb sec see sef sek seo ses sfa sfb sfc sfe sff sfk sfo sfs sk- ska skb skc ske skf skk sko sks soa sob soc soe sof sok soo sos ss- ssa ssb ssc sse ssf ssk sso sss

-ase -ose a-ak a-be a-ok aaaa aaab aaac aaae aaaf aaas aaba aabb aabc aaca aacb aacc aace aacf aack aaco aacs aaea aaec aaes aafa aafb aafc aaff aaka aake aaoe aaoo aasa aasc aase aasf aass abaa abab abac abae abaf abak abas abb- abba abbb abbe abbo abbs abca abcb abcc abcf abcs abec abee abes abff aboa abob abof abok aboo abos abs- absa abse absf abss acaa acab acac acae acas acba acca accc acce accf acco accs ace- acea acec acek aces acfc acfe acfs acke acks acoa acoe acos acsa acsc acse acss aeac aeaf aeas aebs aecb aeka aesc aess afaa afak afao afbs afca afcb afcc afcs afee afek afes affa affc affo affs afka afoa afoe afoo afsa afsb afsc akaa akae akao akas akca akee akes akka akko akok akos aksa aoba aoca aoce aocs aoks aoss asaa asab asac asae asaf asak asao asas asba asbo asc- asca ascb ascc asce asco asea asec asee asek ases asfa aska aske asko asks asob asoc asof asok asos assa assc asse assk asso asss baaa baaf baak baas baba babb babe babo babs bac- baca bacc bace back baco bacs baek baes bafc baff bafo bak- baka bake bako baks baos basa basc base basf bask baso bass bbas bbbb bbbs bbeb bbfc bcaa bcas bcbc bcbs bcca bccc bccs bcec bces bcfc bcof bcos bcsa bcsc bcss beaf beak beas beba bebb bebe bebo beca beck becs beeb beef beek bees befa befe beff befo beka beke beko beks beo- beof beok beos bes- besa bese besk beso bess bfas bfca bfcs bffs boab boac boak boas boba bobb bobe bobo bobs boca boce bock boco bocs boea boec boee boef boeo boes bofa bofe boff bofs boka boke boko boks boob booc booe boof book boos bosa bosc bose bosk boso boss bsaa bsac bsas bscs bsea bseb bsec bsee bses bsfa bsfc bsff bsfs bsos bssc bsse c-bo caaa caab caac caaf caas caba cabe cabf cabo cabs cac- caca cacc cace cack caco caec caes cafa cafb cafc cafe caff cafs caka cake caos casa casb casc case cask caso cass cbac cbbc cbbs cbca cbcc cbce cbcs cbea cbec cbee cbef cbfb cbfc cbka cbko cbsa cbsc cbse ccaa ccab ccac ccaf ccas ccba ccbc ccca cccb cccc cccf cccs ccee ccfa ccfc ccff ccob ccoc ccsa ccsf ccss ceac ceas ceba cebs cec- ceca cece ceco cecs ceeb ceec cees cef- cefa cefc ceke ceos cesa cesc cese cess cfaa cfab cfac cfae cfao cfbc cfbs cfca cfcb cfcf cfco cfcs cffb cfoa cfos cfsa cfse 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 cofc cofe coff cofs cok- coka coke coko coob coof cook coos cosa cosc cose coso coss csaa