-er a-a a-b a-c aaa aab aac aae aah aak aar aas ab- aba abb abc abe abh abk abr abs ac- aca acb acc ace ach ack acr acs aea aeb aec aee aeh aek aer aes aha ahb ahc ahe ahh ahk ahr ahs aka akb akc ake akh akk akr aks ar- ara arb arc are arh ark arr ars as- asa asb asc ase ash ask asr ass baa bab bac bae bah bak bar bas bba bbb bbc bbe bbh bbk bbr bbs bca bcb bcc bce bch bck bcr bcs be- bea beb bec bee beh bek ber bes bha bhb bhc bhe bhh bhk bhr bhs bka bkb bkc bke bkk bkr bks bra brb bre brh brk brr brs bsa bsb bsc bse bsh bsk bsr bss c-- caa cab cac cae cah cak car cas cba cbb cbc cbe cbh cbk cbr cbs cca ccb ccc cce cch cck ccr ccs ce- cea ceb cec cee ceh cek cer ces ch- cha chb chc che chh chk chr chs cka ckb ckc ckh cks cra crb crc cre crh crk crr crs csa csb csc cse csh csk csr css eaa eab eac eae eah eak ear eas eba ebb ebc ebe ebh ebk ebr ebs ec- eca ecb ecc ece ech eck ecr ecs eea eeb eec eee eek eer ees eha ehb ehc ehe ehh ehr ehs eka ekb ekc eke ekh ekr eks era erb erc ere erh erk err ers es- esa esb esc ese esh esk esr ess haa hab hac hae hah hak har has hba hbb hbc hbe hbh hbk hbr hbs hca hcb hcc hce hch hck hcr hcs he- hea heb hec hee heh hek her hes hha hhb hhc hhe hhh hhk hhr hhs hka hkb hkh hkk hkr hks hr- hra hrb hrc hre hrh hrk hrr hrs hsa hsb hsc hse hsh hsk hsr hss ka- kaa kab kac kae kah kak kar kas kba kbb kbc kbe kbh kbk kbr kbs kca kcb kcc kce kch kck kcr kcs ke- kea keb kec kee keh kek ker kes kha khe khh khk khr khs kkb kkc kke kkh kkk kkr kks kra krc krk krr krs ksa ksb ksc kse ksh ksk ksr kss ra- raa rab rac rae rah rak rar ras rba rbb rbc rbe rbh rbk rbr rbs rca rcb rcc rce rch rcr rcs re- rea reb rec ree reh rek rer res rh- rha rhb rhc rhe rhh rhr rhs rkb rkc rke rkk rks rra rrb rrc rrh rrk rrr rrs rsa rsb rsc rse rsh rsk rsr rss saa sab sac sae sah sak sar sas sba sbb sbc sbe sbh sbk sbr sbs sca scb scc sce sch sck scr scs se- sea seb sec see seh sek ser ses sh- sha shb shc she shh shk shr shs sk- ska skb skc ske skh skk skr sks sr- sra srb src sre srh srk srr srs ss- ssa ssb ssc sse ssh ssk ssr sss

-ase a-ak a-be a-ha aaaa aaab aaac aaae aaah aaar aaas aaba aabb aabc aabh aaca aacb aacc aace aach aack aacr aacs aaea aaec aaes aaha aahk aahs aaka aake aara aarc aare aars aasa aasc aase aass abaa abab abac abae abak abar abas abb- abba abbb abbe abbr abbs abca abcb abcc abch abcr abcs abec abee aber abes abha abhr abhs abra abrc abrs abs- absa abse abss acaa acab acac acae acar acas acba acca accc acce acch accs ace- acea acec aceh acek acer aces acha ache achh achr achs acke acks acr- acra acrc acre acrr acrs acsa acsc acse acss aeac aeas aebs aecb aeer aeka aer- aera aerc aers aesc aess ahab ahac ahah ahar ahas ahha ahhs ahra ahrc ahre ahrr ahrs ahsa ahse ahss akaa akae akah akar akas akca akee aker akes akha akhs akka akr- akra akre aksa arab arac arae arah arak arar aras arba arbe arbh arbs arc- arca arce arch arcs area arec aree areh arek ares arh- arhs arka arke arkh arks arr- arra arrc arre arrh arrk arrr arrs ars- arsa arsc arse arsk asaa asab asac asae asah asak asar asas asba asc- asca ascb ascc asce asch ascr asea asec asee aseh asek aser ases asha ashe ashk ashs aska aske askr asks asra asrc asrs assa assc asse assh assk assr asss baaa baah baak baar baas baba babb babe babr babs bac- baca bacc bace bach back bacs baek baer baes baha bahr bahs bak- baka bake bakh bakr baks bar- bara barb barc bare barh bark barr bars basa basc base bash bask bass bbas bbbb bbbs bbch bbeb bbhs bbrc bcaa bcar bcas bcbc bcbs bcca bccc bccs bcec bcer bces bche bchs bcra bcrs bcsa bcsc bcss beah beak bear beas beba bebb bebe beca bech beck becs beeb beek beer bees behr behs beka beke beks bera berc bere berk berr bers bes- besa bese besh besk bess bhar bhca bhcc bher bhhs bhra bkhs brab brac brae brah brak bras brca brcb brce brea breb brec bree brek brer bres brhs brka brkb brrr brrs brsb brsr bsaa bsac bsas bscs bsea bseb bsec bsee bser bses bshs bsra bssc bsse caaa caab caac caah caas caba cabe cabs cac- caca cacc cace cach cack cacr caec caer caes caha cahe cahs caka cake cara carb carc care cark carr cars casa casb casc case cash cask casr cass cbac cbar cbbc cbbs cbca cbcc cbce cbcr cbcs cbea cbec cbee cber cbha cbhs cbka cbkr cbre cbrh cbsa cbsc cbse ccaa ccab ccac ccar ccas ccba ccbc ccca cccb cccc cccs ccee ccha cche cchr cchs ccra ccrc ccre ccrs ccsa ccss ceac cear ceas ceba cebs cec- ceca cece cecs ceeb ceec cees cehs ceke cer- cera cerc cere cers cesa cesc cese cesr cess