-er a-a a-b a-c aaa aab aac aae aag aah aar aas ab- aba abb abc abe abg abh abr abs ac- aca acb acc ace acg ach acr acs aea aeb aec aee aeg aeh aer aes ag- aga agb agc age agg agh agr ags aha ahb ahc ahe ahg ahh ahr ahs ar- ara arb arc are arg arh arr ars as- asa asb asc ase asg ash asr ass baa bab bac bae bag bah bar bas bba bbb bbc bbe bbg bbh bbr bbs bca bcb bcc bce bcg bch bcr bcs be- bea beb bec bee beg beh ber bes bga bgb bgc bge bgg bgh bgr bgs bha bhb bhc bhe bhg bhh bhr bhs bra brb bre brg brh brr brs bsa bsb bsc bse bsg bsh bsr bss c-- caa cab cac cae cag cah car cas cba cbb cbc cbe cbg cbh cbr cbs cca ccb ccc cce ccg cch ccr ccs ce- cea ceb cec cee ceg ceh cer ces cga cgb cgc cge cgg cgh cgr cgs ch- cha chb chc che chg chh chr chs cra crb crc cre crg crh crr crs csa csb csc cse csg csh csr css eaa eab eac eae eag eah ear eas eba ebb ebc ebe ebg ebh ebr ebs ec- eca ecb ecc ece ecg ech ecr ecs eea eeb eec eee eeg eer ees ega egb egc ege egg egh egr egs eha ehb ehc ehe ehg ehh ehr ehs era erb erc ere erg erh err ers es- esa esb esc ese esg esh esr ess gaa gab gac gae gag gah gar gas gba gbc gbe gbg gbh gbr gbs gca gcb gcc gce gcg gch gcr gcs ge- gea geb gec gee geg geh ger ges gga ggb ggc ggg ggh ggr ggs gha ghb ghc ghe ghg ghh ghr ghs gra grb grc gre grg grh grr grs gsa gsb gsc gse gsg gsr gss haa hab hac hae hag hah har has hba hbb hbc hbe hbg hbh hbr hbs hca hcb hcc hce hcg hch hcr hcs he- hea heb hec hee heg heh her hes hga hgb hgc hge hgg hgh hgr hgs hha hhb hhc hhe hhg hhh hhr hhs hr- hra hrb hrc hre hrg hrh hrr hrs hsa hsb hsc hse hsg hsh hsr hss ra- raa rab rac rae rag rah rar ras rba rbb rbc rbe rbg rbh rbr rbs rca rcb rcc rce rcg rch rcr rcs re- rea reb rec ree reg reh rer res rga rgb rgc rge rgg rgh rgr rgs rh- rha rhb rhc rhe rhg rhh rhr rhs rra rrb rrc rrg rrh rrr rrs rsa rsb rsc rse rsg rsh rsr rss saa sab sac sae sag sah sar sas sba sbb sbc sbe sbg sbh sbr sbs sca scb scc sce scg sch scr scs se- sea seb sec see seg seh ser ses sga sgb sgc sge sgg sgh sgr sgs sh- sha shb shc she shg shh shr shs sr- sra srb src sre srg srh srr srs ss- ssa ssb ssc sse ssg ssh ssr sss

-ase a-be a-ha aaaa aaab aaac aaae aaah aaar aaas aaba aabb aabc aabh aaca aacb aacc aace aach aacr aacs aaea aaec aaes aage aagh aaha aahs aara aarc aare aars aasa aasc aase aass abaa abab abac abae abag 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 acag acar acas acba acca accc acce acch accs ace- acea acec aceh acer aces acga acgr acgs acha ache achh achr achs acr- acra acrc acre acrr acrs acsa acsc acse acss aeac aeas aebs aecb aeer aega aer- aera aerc aers aesc aess agac agag agar agas agba agca agcc agce agea agee ager ages agga agge agha aghe aghs agra agre agsa agsg ahab ahac ahah ahar ahas ahha ahhs ahra ahrc ahre ahrr ahrs ahsa ahse ahss arab arac arae arag arah arar aras arba arbe arbh arbs arc- arca arce arch arcs area arec aree areg areh ares arga argb arge argh args arh- arhs arr- arra arrc arre arrg arrh arrr arrs ars- arsa arsc arse asaa asab asac asae asag asah asar asas asba asc- asca ascb ascc asce asch ascr asea asec asee aseh aser ases asge asha ashe ashs asra asrc asrg asrs assa assc asse assh assr asss baaa baah baar baas baba babb babe babr babs bac- baca bacc bace bach bacs baer baes baga bage bagg bagh bags baha bahr bahs bar- bara barb barc bare barg barh barr bars basa basc base bash bass bbas bbbb bbbs bbch bbeb bbga bbhs bbrc bbrg bcaa bcar bcas bcbc bcbg bcbs bcca bccc bccs bcec bcer bces bcgs bche bchs bcra bcrs bcsa bcsc bcss beag beah bear beas beba bebb bebe beca bech becs beeb beeg beer bees bega begg begs behr behs bera berc bere berg berr bers bes- besa bese besh bess bgca bggs bghs bhag bhar bhca bhcc bher bhhs bhra brab brac brae brag brah bras brca brcb brce brea breb brec bree breg brer bres brhs brrr brrs brsb brsr bsaa bsac bsas bscs bsea bseb bsec bsee bseg bser bses bsgs bshs bsra bssc bsse caaa caab caac caah caas caba cabe cabg cabs cac- caca cacc cace cach cacr caec caer caes caga cage cagg cagr cags caha cahe cahs cara carb carc care carr cars casa casb casc case cash casr cass cbac cbar cbbc cbbs cbca cbcc cbce cbcr cbcs cbea cbec cbee cber cbga cbgb cbha cbhs cbre cbrh cbsa cbsc cbse ccaa ccab ccac ccag ccar ccas ccba ccbc ccca cccb cccc cccs ccee ccga ccgc ccgs ccha cche cchr cchs ccra ccrc ccre ccrg ccrs ccsa ccsg ccss ceac cear ceas ceba