-er a-a a-b a-c aaa aab aac aae aaf aah aar aas ab- aba abb abc abe abf abh abr abs ac- aca acb acc ace acf ach acr acs aea aeb aec aee aef aeh aer aes af- afa afb afc afe aff afh afr afs aha ahb ahc ahe ahf ahh ahr ahs ar- ara arb arc are arf arh arr ars as- asa asb asc ase asf ash asr ass baa bab bac bae baf bah bar bas bba bbb bbc bbe bbf bbh bbr bbs bca bcb bcc bce bcf bch bcr bcs be- bea beb bec bee bef beh ber bes bfa bfb bfc bfe bff bfh bfr bfs bha bhb bhc bhe bhf bhh bhr bhs bra brb bre brf brh brr brs bsa bsb bsc bse bsf bsh bsr bss c-- caa cab cac cae caf cah car cas cba cbb cbc cbe cbf cbh cbr cbs cca ccb ccc cce ccf cch ccr ccs ce- cea ceb cec cee cef ceh cer ces cfa cfb cfc cfe cff cfh cfr cfs ch- cha chb chc che chf chh chr chs cra crb crc cre crf crh crr crs csa csb csc cse csf csh csr css eaa eab eac eae eaf eah ear eas eba ebb ebc ebe ebf ebh ebr ebs ec- eca ecb ecc ece ecf ech ecr ecs eea eeb eec eee eef eer ees ef- efa efb efc efe eff efh efr efs eha ehb ehc ehe ehf ehh ehr ehs era erb erc ere erf erh err ers es- esa esb esc ese esf esh esr ess faa fab fac fae faf fah far fas fba fbb fbc fbe fbf fbh fbr fbs fca fcb fcc fce fcf fcr fcs fea feb fec fee fef feh fer fes ffa ffc ffe fff ffh ffr ffs fha fhb fhc fhe fhf fhh fhr fhs fra frb frc fre frf frh frr frs fsa fsb fsc fse fsf fsh fsr fss haa hab hac hae haf hah har has hba hbb hbc hbe hbf hbh hbr hbs hca hcb hcc hce hcf hch hcr hcs he- hea heb hec hee hef heh her hes hfa hfb hfc hfe hff hfh hfr hfs hha hhb hhc hhe hhf hhh hhr hhs hr- hra hrb hrc hre hrf hrh hrr hrs hsa hsb hsc hse hsf hsh hsr hss ra- raa rab rac rae raf rah rar ras rba rbb rbc rbe rbf rbh rbr rbs rca rcb rcc rce rcf rch rcr rcs re- rea reb rec ree ref reh rer res rfa rfb rfc rfe rff rfh rfr rfs rh- rha rhb rhc rhe rhf rhh rhr rhs rra rrb rrc rrf rrh rrr rrs rsa rsb rsc rse rsf rsh rsr rss saa sab sac sae saf sah sar sas sba sbb sbc sbe sbf sbh sbr sbs sca scb scc sce scf sch scr scs se- sea seb sec see sef seh ser ses sfa sfb sfc sfe sff sfh sfr sfs sh- sha shb shc she shf shh shr shs sr- sra srb src sre srf srh srr srs ss- ssa ssb ssc sse ssf ssh ssr sss

-ase a-be a-ha aaaa aaab aaac aaae aaaf aaah aaar aaas aaba aabb aabc aabh aaca aacb aacc aace aacf aach aacr aacs aaea aaec aaes aafa aafb aafc aaff aaha aahs aara aarc aare aars aasa aasc aase aasf aass abaa abab abac abae abaf abar abas abb- abba abbb abbe abbr abbs abca abcb abcc abcf abch abcr abcs abec abee aber abes abff abha abhr abhs abra abrc abrs abs- absa abse absf abss acaa acab acac acae acar acas acba acca accc acce accf acch accs ace- acea acec aceh acer aces acfc acfe acfs acha ache achh achr achs acr- acra acrc acre acrr acrs acsa acsc acse acss aeac aeaf aeas aebs aecb aeer aer- aera aerc aers aesc aess afaa afar afbs afca afcb afcc afch afcs afee afer afes affa affc affs afhs afr- afra afrc afre afrs afsa afsb afsc ahab ahac ahah ahar ahas ahfa ahha ahhs ahra ahrc ahre ahrr ahrs ahsa ahse ahss arab arac arae araf arah arar aras arba arbe arbh arbs arc- arca arce arch arcs area arec aree aref areh ares arfa arfb arfc arff arfs arh- arhs arr- arra arrc arre arrh arrr arrs ars- arsa arsc arse asaa asab asac asae asaf asah asar asas asba asc- asca ascb ascc asce asch ascr asea asec asee aseh aser ases asfa asha ashe ashs asra asrc asrs assa assc asse assh assr asss baaa baaf baah baar baas baba babb babe babr babs bac- baca bacc bace bach bacs baer baes bafc baff baha bahr bahs bar- bara barb barc bare barf barh barr bars basa basc base basf bash bass bbas bbbb bbbs bbch bbeb bbfc bbhs bbrc bcaa bcar bcas bcbc bcbs bcca bccc bccs bcec bcer bces bcfc bche bchs bcra bcrs bcsa bcsc bcss beaf beah bear beas beba bebb bebe beca bech becs beeb beef beer bees befa befe beff behr behs bera berc bere berr bers bes- besa bese besh bess bfas bfca bfcs bffs bfhs bfsr bhar bhca bhcc bher bhff bhhs bhra bhsf brab brac brae braf brah bras brca brcb brce brea breb brec bree bref brer bres brfc brhs brrr brrs brsb brsr bsaa bsac bsas bscs bsea bseb bsec bsee bser bses bsfa bsfc bsff bsfs bshs bsra bssc bsse caaa caab caac caaf caah caas caba cabe cabf cabs cac- caca cacc cace cach cacr caec caer caes cafa cafb cafc cafe caff cafs caha cahe cahs cara carb carc care carf carr cars casa casb casc case cash casr cass cbac cbar cbbc cbbs cbca cbcc cbce cbcr cbcs cbea cbec cbee cbef cber cbfb cbfc cbha cbhs cbre cbrh cbsa cbsc cbse ccaa ccab ccac ccaf ccar ccas ccba ccbc ccca cccb cccc cccf cccs ccee ccfa