-er a-a a-b a-c aaa aab aac aae aah aar aas ab- aba abb abc abe abh abr abs ac- aca acb acc ace ach acr acs aea aeb aec aee aeh aer aes aha ahb ahc ahe ahh ahr ahs ar- ara arb arc are arh arr ars as- asa asb asc ase ash asr ass baa bab bac bae bah bar bas bba bbb bbc bbe bbh bbr bbs bca bcb bcc bce bch bcr bcs be- bea beb bec bee beh ber bes bha bhb bhc bhe bhh bhr bhs bra brb bre brh brr brs bsa bsb bsc bse bsh bsr bss c-- caa cab cac cae cah car cas cba cbb cbc cbe cbh cbr cbs cca ccb ccc cce cch ccr ccs ce- cea ceb cec cee ceh cer ces ch- cha chb chc che chh chr chs cra crb crc cre crh crr crs csa csb csc cse csh csr css eaa eab eac eae eah ear eas eba ebb ebc ebe ebh ebr ebs ec- eca ecb ecc ece ech ecr ecs eea eeb eec eee eer ees eha ehb ehc ehe ehh ehr ehs era erb erc ere erh err ers es- esa esb esc ese esh esr ess haa hab hac hae hah har has hba hbb hbc hbe hbh hbr hbs hca hcb hcc hce hch hcr hcs he- hea heb hec hee heh her hes hha hhb hhc hhe hhh hhr hhs hr- hra hrb hrc hre hrh hrr hrs hsa hsb hsc hse hsh hsr hss ra- raa rab rac rae rah rar ras rba rbb rbc rbe rbh rbr rbs rca rcb rcc rce rch rcr rcs re- rea reb rec ree reh rer res rh- rha rhb rhc rhe rhh rhr rhs rra rrb rrc rrh rrr rrs rsa rsb rsc rse rsh rsr rss saa sab sac sae sah sar sas sba sbb sbc sbe sbh sbr sbs sca scb scc sce sch scr scs se- sea seb sec see seh ser ses sh- sha shb shc she shh shr shs sr- sra srb src sre srh srr srs ss- ssa ssb ssc sse 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 aaha aahs aara aarc aare aars aasa aasc aase aass abaa abab abac abae 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 acer aces acha ache achh achr achs acr- acra acrc acre acrr acrs acsa acsc acse acss aeac aeas aebs aecb aeer aer- aera aerc aers aesc aess ahab ahac ahah ahar ahas ahha ahhs ahra ahrc ahre ahrr ahrs ahsa ahse ahss arab arac arae arah arar aras arba arbe arbh arbs arc- arca arce arch arcs area arec aree areh ares arh- arhs arr- arra arrc arre arrh arrr arrs ars- arsa arsc arse asaa asab asac asae asah asar asas asba asc- asca ascb ascc asce asch ascr asea asec asee aseh aser ases asha ashe ashs asra asrc asrs assa assc asse assh assr asss baaa baah baar baas baba babb babe babr babs bac- baca bacc bace bach bacs baer baes baha bahr bahs bar- bara barb barc bare barh barr bars basa basc base bash 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 bear beas beba bebb bebe beca bech becs beeb beer bees behr behs bera berc bere berr bers bes- besa bese besh bess bhar bhca bhcc bher bhhs bhra brab brac brae brah bras brca brcb brce brea breb brec bree brer bres brhs 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 cacr caec caer caes 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 cbha cbhs 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 cer- cera cerc cere cers cesa cesc cese cesr cess chaa chab chac chae chah char chas chca chce chch chcs chea cheb chec chee cheh cher ches chha chhs chra chrb chrc chrr chrs chsc chse chsh chsr crab crac crar cras crbc crca crcc crce crcr cre- crea creb crec cree creh cres crhs crsa crss csaa csab csac csar csas cscb cscc csce csch cscr cscs csea csec csee cseh cser cshs csra csrc csrs cssa csse cssr eaba eabh eaca eacc each eaec eahs eara earb eare earh ears easa ease ebac ebba ebbc ebbr ebbs ebcc eber ebes ebhs ebsa ecaa ecac ecar ecbc ecbe ecca eccb eccc ecce eces echa eche echs ecra ecrc ecrr ecsa ecsc ecse ecss eeca eecs eeea eeee eees eehs eera eerc eers eese ehaa ehcc ehea eheh eher ehhs ehre eras erba erbb erbe erca ercc erce erch ereb erec erer eres erhc erhs erra errc erre errs ersa erse ersh esab esac esar esas esba esbs esca escb esce esch escr escs esea esee eser eses eshs esra essa esse essh haab haar haas haba habe habs hace hacs haec haes haha hahs hara harc hare harh harr hars hasa hasc hase hash hass hbar hbbs hbes hbhs hbrs hbss hcbc hcbs hcca hccb hccc hcch hccs hchs hcsa hcsc hcss heah hear heas hebb hebe hebr heca hech hecs heeb heer hees hehe