a-a a-b a-c aaa aab aac aae aah aak aas ab- aba abb abc abe abh abk abs ac- aca acb acc ace ach ack acs aea aeb aec aee aeh aek aes aha ahb ahc ahe ahh ahk ahs aka akb akc ake akh akk aks as- asa asb asc ase ash ask ass baa bab bac bae bah bak bas bba bbb bbc bbe bbh bbk bbs bca bcb bcc bce bch bck bcs be- bea beb bec bee beh bek bes bha bhb bhc bhe bhh bhk bhs bka bkb bkc bke bkk bks bsa bsb bsc bse bsh bsk bss c-- caa cab cac cae cah cak cas cba cbb cbc cbe cbh cbk cbs cca ccb ccc cce cch cck ccs ce- cea ceb cec cee ceh cek ces ch- cha chb chc che chh chk chs cka ckb ckc ckh cks csa csb csc cse csh csk css eaa eab eac eae eah eak eas eba ebb ebc ebe ebh ebk ebs ec- eca ecb ecc ece ech eck ecs eea eeb eec eee eek ees eha ehb ehc ehe ehh ehs eka ekb ekc eke ekh eks es- esa esb esc ese esh esk ess haa hab hac hae hah hak has hba hbb hbc hbe hbh hbk hbs hca hcb hcc hce hch hck hcs he- hea heb hec hee heh hek hes hha hhb hhc hhe hhh hhk hhs hka hkb hkh hkk hks hsa hsb hsc hse hsh hsk hss ka- kaa kab kac kae kah kak kas kba kbb kbc kbe kbh kbk kbs kca kcb kcc kce kch kck kcs ke- kea keb kec kee keh kek kes kha khe khh khk khs kkb kkc kke kkh kkk kks ksa ksb ksc kse ksh ksk kss saa sab sac sae sah sak sas sba sbb sbc sbe sbh sbk sbs sca scb scc sce sch sck scs se- sea seb sec see seh sek ses sh- sha shb shc she shh shk shs sk- ska skb skc ske skh skk sks ss- ssa ssb ssc sse ssh ssk sss

-ase a-ak a-be a-ha aaaa aaab aaac aaae aaah aaas aaba aabb aabc aabh aaca aacb aacc aace aach aack aacs aaea aaec aaes aaha aahk aahs aaka aake aasa aasc aase aass abaa abab abac abae abak abas abb- abba abbb abbe abbs abca abcb abcc abch abcs abec abee abes abha abhs abs- absa abse abss acaa acab acac acae acas acba acca accc acce acch accs ace- acea acec aceh acek aces acha ache achh achs acke acks acsa acsc acse acss aeac aeas aebs aecb aeka aesc aess ahab ahac ahah ahas ahha ahhs ahsa ahse ahss akaa akae akah akas akca akee akes akha akhs akka aksa asaa asab asac asae asah asak asas asba asc- asca ascb ascc asce asch asea asec asee aseh asek ases asha ashe ashk ashs aska aske asks assa assc asse assh assk asss baaa baah baak baas baba babb babe babs bac- baca bacc bace bach back bacs baek baes baha bahs bak- baka bake bakh baks basa basc base bash bask bass bbas bbbb bbbs bbch bbeb bbhs bcaa bcas bcbc bcbs bcca bccc bccs bcec bces bche bchs bcsa bcsc bcss beah beak beas beba bebb bebe beca bech beck becs beeb beek bees behs beka beke beks bes- besa bese besh besk bess bhca bhcc bhhs bkhs bsaa bsac bsas bscs bsea bseb bsec bsee bses bshs bssc bsse caaa caab caac caah caas caba cabe cabs cac- caca cacc cace cach cack caec caes caha cahe cahs caka cake casa casb casc case cash cask cass cbac cbbc cbbs cbca cbcc cbce cbcs cbea cbec cbee cbha cbhs cbka cbsa cbsc cbse ccaa ccab ccac ccas ccba ccbc ccca cccb cccc cccs ccee ccha cche cchs ccsa ccss ceac ceas ceba cebs cec- ceca cece cecs ceeb ceec cees cehs ceke cesa cesc cese cess chaa chab chac chae chah chak chas chca chce chch chcs chea cheb chec chee cheh chek ches chha chhs chka chkb chks chsc chse chsh ckac ckbc ckbe ckch ckck ckcs ckhs cksa cksb cksh csaa csab csac csak csas cscb cscc csce csch cscs csea csec csee cseh cshs cska csks cssa csse eaba eabh eaca eacc each eaec eahs easa ease ebac ebba ebbc ebbs ebcc ebes ebhs ebsa ecaa ecac ecbc ecbe ecca eccb eccc ecce eces echa eche echs ecka ecks ecsa ecsc ecse ecss eeca eecs eeea eeee eees eehs eeka eeke eeks eese eesk ehaa ehcc ehea eheh ehhs eka- ekab ekch ekeb ekek ekes ekhs ekka esab esac esas esba esbs esca escb esce esch escs esea esee esek eses eshs eska eske esks essa esse essh haab haak haas haba habe habs hace hack hacs haec haes haha hahs haka hake hakk haks hasa hasc hase hash hask hass hbbs hbes hbhs hbss hcbc hcbs hcca hccb hccc hcch hccs hchs hcsa hcsc hcss heah heas hebb hebe heca hech heck hecs heeb heek hees hehe hehs heka heke hesa hesc hesh hess hhaa hhhh hhhs hkcc hkcs hkse hsac hsas hsbc hscc hsea hses hshs hsse kaaa kaab kaak kaas kaba kabb kabc kabe kacb kacc kace kach kacs kaeh kaes kaha kahc kahe kahs kaka kakc kake kakh kakk kaks kas- kasa kasb kasc kase kash kask kass kbaa kbab kbac kbae kbak kbas kbba kbbb kbbc kbbe kbbk kbbs kbca kbcb kbce kbch kbck kbcs kbeb kbec kbee kbeh kbek kbes kbhb kbhc kbhe kbhh kbhs kbkb kbkk kbsa kbsb kbsk kbss kcaa kcab kcac kcah kcas kcba kcbc kcbk kcbs kcca kccb kccc kcck kcea kceb kcec kcee kcha kche kchh kchk kchs kckc kckk kcsa kcsb kcsc kcse kcss kea- keak keas keba kebb kebc kebe keca kech keck keeh keek kees kehk kehs keka kekb kekc keke keks kesa kesb kesc kesh kesk kess khab khac khak khas khbc khbs khca khcb khcc