-er a-a a-b a-c aaa aab aac aae aaj aam aar aas ab- aba abb abc abe abj abm abr abs ac- aca acb acc ace acj acm acr acs aea aeb aec aee aej aem aer aes aja ajb ajc aje ajj ajm ajr ajs ama amb amc ame amm amr ams ar- ara arb arc are arj arm arr ars as- asa asb asc ase asj asm asr ass baa bab bac bae baj bam bar bas bba bbb bbc bbe bbm bbr bbs bca bcb bcc bce bcj bcm bcr bcs be- bea beb bec bee bem ber bes bja bjc bjj bjm bjr bjs bma bmb bmc bme bmj bmm bmr bms bra brb bre brj brm brr brs bsa bsb bsc bse bsj bsm bsr bss c-- c-j caa cab cac cae caj cam car cas cba cbb cbc cbe cbj cbm cbr cbs cca ccb ccc cce ccj ccm ccr ccs ce- cea ceb cec cee cej cem cer ces cja cjb cjc cjr cjs cma cmb cmc cme cmj cmm cmr cms cra crb crc cre crj crm crr crs csa csb csc cse csj csm csr css eaa eab eac eae eaj eam ear eas eba ebb ebc ebe ebj ebm ebr ebs ec- eca ecb ecc ece ecj ecm ecr ecs eea eeb eec eee eem eer ees eja ejc em- ema emb emc eme emm emr ems era erb erc ere erm err ers es- esa esb esc ese esm esr ess jaa jab jac jae jaj jam jar jas jba jbc jbj jbm jbr jbs jca jcb jcc jce jcm jcr jcs jea jeb jec jee jej jem jer jes jja jjb jjc jjj jjr jjs jma jmb jmc jme jmj jmm jmr jms jra jrb jrc jrm jrr jrs jsa jsb jsc jse jsj jsm jsr jss m-r maa mab mac mae maj mam mar mas mba mbb mbc mbe mbj mbm mbr mbs mc- mca mcb mcc mce mcm mcr mcs mea meb mec mee mej mem mer mes mjb mjc mje mjj mjm mjr mjs mma mmb mmc mme mmj mmm mmr mms mra mrb mrc mre mrj mrm mrr mrs msa msb msc mse msj msm msr mss ra- raa rab rac rae raj ram rar ras rba rbb rbc rbe rbm rbr rbs rca rcb rcc rce rcj rcm rcr rcs re- rea reb rec ree rem rer res rja rjc rjm rjr rma rmb rmc rme rmm rmr rms rra rrb rrc rrm rrr rrs rsa rsb rsc rse rsj rsm rsr rss saa sab sac sae saj sam sar sas sba sbb sbc sbe sbj sbm sbr sbs sca scb scc sce scj scm scr scs se- sea seb sec see sej sem ser ses sja sjb sjc sje sjj sjm sjr sjs sma smb smc sme smm smr sms sr- sra srb src sre srj srm srr srs ss- ssa ssb ssc sse ssj ssm ssr sss

-ase a-be aaaa aaab aaac aaae aaam aaar aaas aaba aabb aabc aabm aaca aacb aacc aace aacm aacr aacs aaea aaec aaem aaes aama aamb aamc aame aamr aams aara aarc aare aarm aars aasa aasc aase aasm aass abaa abab abac abae abaj abam abar abas abb- abba abbb abbe abbr abbs abca abcb abcc abcr abcs abec abee aber abes abjs abma abmb abmc abms abra abrc abrs abs- absa abse abss acaa acab acac acae acar acas acba acca accc acce accm accs ace- acea acec acem acer aces acma acmc acme acms acr- acra acrc acre acrm acrr acrs acsa acsc acse acsm acss aeac aeas aebs aecb aeer aer- aera aerc aers aesc aess ajab ajac ajam ajar ajas ajba ajee ajss amaa amac amae amaj amam amar amas amb- amba ambe ambr ambs amca amcc amcs amec amee amer ames amm- amma amme amra amrc amsa amsc amss arab arac arae aram arar aras arba arbe arbs arc- arca arce arcm arcs area arec aree arem ares arja arje arma armc arme armm arms arr- arra arrc arre arrr arrs ars- arsa arsc arse asaa asab asac asae asam asar asas asba asbm asc- asca ascb ascc asce ascj ascr asea asec asee asem aser ases asja asma asme asmm asmr asms asra asrc asrm asrs assa assc asse assr asss baaa baam baar baas baba babb babe babm babr babs bac- baca bacc bace bacs baer baes baja bajs bama bamb bamc bame bamm bams bar- bara barb barc bare barm barr bars basa basc base bass bbas bbbb bbbs bbcm bbeb bbrc bcaa bcam bcar bcas bcbc bcbs bcca bccc bccm bccs bcec bcer bces bcma bcms bcra bcrs bcsa bcsc bcsm bcss beam bear beas beba bebb bebe beca becs beeb beej beem beer bees beja bema beme bera berc bere berm berr bers bes- besa bese besm bess bjcc bjec bjsm bmaa bmaj bmce brab brac brae braj bram bras brca brcb brce brea breb brec bree brem brer bres brje brmc brrm brrr brrs brsb brsr bsaa bsac bsam bsas bscs bsea bseb bsec bsee bser bses bsms bsra bsrm bssc bsse bssm caaa caab caac caam caas caba cabe cabs cac- caca cacc cace cacm cacr caec caem caer caes caja cama camb camc came camm cams cara carb carc care carj carm carr cars casa casb casc case casm casr cass cbac cbar cbbc cbbs cbca cbcc cbce cbcm cbcr cbcs cbea cbec cbee cber cbme cbms cbre cbrj cbrm cbsa cbsc cbse cbsm ccaa ccab ccac ccam ccar ccas ccba ccbc ccca cccb cccc cccm cccs ccee ccma ccmb ccmc ccmm ccms ccra ccrc ccre ccrs ccsa ccss ceac cear ceas ceba cebs cec- ceca cece cecm cecs ceeb ceec ceem cees ceja cejc cema cemb ceme cemm cemr cems cer- cera cerc cere cers cesa cesc cese cesr cess cjar cjbc cjca cjcb cjcj cjcs cjme cjmr cjms cjrb cjrc cjrj cjrs cjsb cjss cmaa cmac cmaj cmas