-er a-a a-b a-c aaa aab aac aad aae aah aak aar aas ab- aba abb abc abd abe abh abk abr abs ac- aca acb acc acd ace ach ack acr acs ad- ada adb adc add ade adh adk adr ads aea aeb aec aed aee aeh aek aer aes aha ahb ahc ahd ahe ahh ahk ahr ahs aka akb akc akd ake akh akk akr aks ar- ara arb arc ard are arh ark arr ars as- asa asb asc asd ase ash ask asr ass baa bab bac bad bae bah bak bar bas bba bbb bbc bbd bbe bbh bbk bbr bbs bca bcb bcc bcd bce bch bck bcr bcs bda bdb bdc bdd bde bdh bdk bdr bds be- bea beb bec bed bee beh bek ber bes bha bhb bhc bhd bhe bhh bhk bhr bhs bka bkb bkc bke bkk bkr bks bra brb brd bre brh brk brr brs bsa bsb bsc bsd bse bsh bsk bsr bss c-- caa cab cac cad cae cah cak car cas cba cbb cbc cbd cbe cbh cbk cbr cbs cca ccb ccc ccd cce cch cck ccr ccs cda cdb cdc cdd cde cdh cdk cdr cds ce- cea ceb cec ced cee ceh cek cer ces ch- cha chb chc chd che chh chk chr chs cka ckb ckc ckd ckh cks cra crb crc crd cre crh crk crr crs csa csb csc csd cse csh csk csr css daa dab dac dad dae dah dak dar das dba dbb dbc dbd dbe dbh dbk dbr dbs dca dcb dcc dcd dce dck dcr dcs dda ddb ddc ddd dde ddh ddk ddr dds de- dea deb dec ded dee deh dek der des dh- dha dhb dhc dhd dhe dhh dhk dhr dhs dka dkb dkc dke dkk dkr dks dra drb drc drd dre drk drr drs dsa dsb dsc dsd dse dsh dsk dsr dss eaa eab eac ead eae eah eak ear eas eba ebb ebc ebd ebe ebh ebk ebr ebs ec- eca ecb ecc ecd ece ech eck ecr ecs ed- eda edb edc edd ede edh edk edr eds eea eeb eec eed eee eek eer ees eha ehb ehc ehd ehe ehh ehr ehs eka ekb ekc ekd eke ekh ekr eks era erb erc erd ere erh erk err ers es- esa esb esc esd ese esh esk esr ess haa hab hac had hae hah hak har has hba hbb hbc hbd hbe hbh hbk hbr hbs hca hcb hcc hcd hce hch hck hcr hcs hda hdb hdc hdd hde hdh hdk hdr hds he- hea heb hec hed hee heh hek her hes hha hhb hhc hhd hhe hhh hhk hhr hhs hka hkb hkd hkh hkk hkr hks hr- hra hrb hrc hrd hre hrh hrk hrr hrs hsa hsb hsc hsd hse hsh hsk hsr hss ka- kaa kab kac kad kae kah kak kar kas kba kbb kbc kbd kbe kbh kbk kbr kbs kca kcb kcc kcd kce kch kck kcr kcs kda kdb kdc kde kdh kdk kdr kds ke- kea keb kec ked kee keh kek ker kes kha khe khh khk khr khs kkb kkc kke kkh kkk kkr kks kra krc krd krk krr krs ksa ksb ksc ksd kse ksh ksk ksr kss ra- raa rab rac rad rae rah rak rar ras rba rbb rbc rbd rbe rbh rbk rbr rbs rca rcb rcc rcd rce rch rcr rcs rda rdb rdc rdd rde rdh rdr rds re- rea reb rec red ree reh rek rer res rh- rha rhb rhc rhd rhe rhh rhr rhs rkb rkc rke rkk rks rra rrb rrc rrd rrh rrk rrr rrs rsa rsb rsc rsd rse rsh rsk rsr rss saa sab sac sad sae sah sak sar sas sba sbb sbc sbd sbe sbh sbk sbr sbs sca scb scc scd sce sch sck scr scs sda sdb sdc sdd sde sdh sdk sdr sds se- sea seb sec sed see seh sek ser ses sh- sha shb shc shd she shh shk shr shs sk- ska skb skc skd ske skh skk skr sks sr- sra srb src srd sre srh srk srr srs ss- ssa ssb ssc ssd sse ssh ssk ssr sss

-ase a-ak a-be a-ha aaaa aaab aaac aaad aaae aaah aaar aaas aaba aabb aabc aabd aabh aaca aacb aacc aacd aace aach aack aacr aacs aada aadc aade aads aaea aaec aaes aaha aahk aahs aaka aake aara aarc aard aare aars aasa aasc aasd aase aass abaa abab abac abad abae abak abar abas abb- abba abbb abbe abbr abbs abca abcb abcc abcd abch abcr abcs abda abec abed abee aber abes abha abhr abhs abra abrc abrs abs- absa absd abse abss acaa acab acac acad acae acar acas acba acca accc accd acce acch accs acda acdb acdc acde acds ace- acea acec aced aceh acek acer aces acha ache achh achr achs ackd acke acks acr- acra acrc acre acrr acrs acsa acsc acsd acse acss adaa adab adac adad adae adah adak adar adas adba adbc adcc adcs adda addc addd adde addr adds adea adeb adee adeh ader ades adha adhd adhs adra adre adrs adsa adsr adss aeac aeas aebs aecb aede aeer aeka aer- aera aerc aerd aers aesc aesd aess ahab ahac ahad ahah ahar ahas ahed ahha ahhs ahra ahrc ahre ahrr ahrs ahsa ahse ahss akaa akae akah akar akas akca aked akee aker akes akha akhs akka akr- akra akre aksa arab arac arad arae arah arak arar aras arba arbe arbh arbs arc- arca arce arch arcs arda ardc arde ards area arec ared aree areh arek ares arh- arhs arka arke arkh arks arr- arra arrc arre arrh arrk arrr arrs ars- arsa arsc arsd arse arsk asaa asab asac asad asae asah asak asar asas asba