-er a-a a-b a-c aaa aab aac aad aae aah aam aao aar ab- aba abb abc abd abe abh abm abo abr ac- aca acb acc acd ace ach acm aco acr ad- ada adb adc add ade adh adm ado adr aea aeb aec aed aee aeh aem aeo aer aha ahb ahc ahd ahe ahh ahm aho ahr ama amb amc amd ame amh amm amo amr aoa aob aoc aod aoe aoh aom aoo aor ar- ara arb arc ard are arh arm aro arr baa bab bac bad bae bah bam bao bar bba bbb bbc bbd bbe bbh bbm bbo bbr bca bcb bcc bcd bce bch bcm bco bcr bda bdb bdc bdd bde bdh bdm bdo bdr be- bea beb bec bed bee beh bem beo ber bha bhb bhc bhd bhe bhh bhm bho bhr bma bmb bmc bmd bme bmh bmm bmo bmr boa bob boc bod boe boh bom boo bor bra brb brd bre brh brm bro brr c-- caa cab cac cad cae cah cam cao car cba cbb cbc cbd cbe cbh cbm cbo cbr cca ccb ccc ccd cce cch ccm cco ccr cda cdb cdc cdd cde cdh cdm cdo cdr ce- cea ceb cec ced cee ceh cem ceo cer ch- cha chb chc chd che chh chm cho chr cma cmb cmc cmd cme cmh cmm cmo cmr co- coa cob coc cod coe coh com coo cor cra crb crc crd cre crh crm cro crr daa dab dac dad dae dah dam dao dar dba dbb dbc dbd dbe dbh dbm dbo dbr dca dcb dcc dcd dce dcm dco dcr dda ddb ddc ddd dde ddh ddm ddo ddr de- dea deb dec ded dee deh dem deo der dh- dha dhb dhc dhd dhe dhh dhm dho dhr dma dmb dmc dmd dme dmh dmm dmo dmr doa dob doc dod doe doh dom doo dor dra drb drc drd dre drm dro drr eaa eab eac ead eae eah eam eao ear eba ebb ebc ebd ebe ebh ebm ebo ebr ec- eca ecb ecc ecd ece ech ecm eco ecr ed- eda edb edc edd ede edh edm edo edr eea eeb eec eed eee eem eeo eer eha ehb ehc ehd ehe ehh ehm eho ehr em- ema emb emc emd eme emh emm emo emr eo- eoa eob eoc eod eoe eoh eom eoo eor era erb erc erd ere erh erm ero err haa hab hac had hae hah ham hao har hba hbb hbc hbd hbe hbh hbm hbo hbr hca hcb hcc hcd hce hch hcm hco hcr hda hdb hdc hdd hde hdh hdm hdo hdr he- hea heb hec hed hee heh hem heo her hha hhb hhc hhd hhe hhh hhm hho hhr hma hmb hmc hmd hme hmh hmm hmo hmr hoa hob hoc hod hoe hoh hom hoo hor hr- hra hrb hrc hrd hre hrh hrm hro hrr m-o m-r maa mab mac mad mae mah mam mao mar mba mbb mbc mbd mbe mbh mbm mbo mbr mc- mca mcb mcc mcd mce mch mcm mco mcr mda mdb mdc mdd mde mdh mdm mdo mdr mea meb mec med mee meh mem meo mer mha mhc mhd mhh mhm mho mhr mma mmb mmc mmd mme mmh mmm mmo mmr moa mob moc mod moe moh mom moo mor mra mrb mrc mrd mre mrh mrm mro mrr oaa oab oac oad oae oah oam oao oar ob- oba obb obc obd obe obh obm obo obr oc- oca ocb occ ocd och ocm oco ocr oda odb odc odd ode odh odm odo odr oea oeb oec oed oee oeh oem oeo oer oha ohc ohd ohe ohh ohm oho ohr om- oma omb omc omd ome omh omm omo omr oo- ooa oob ooc ood ooh oom ooo oor or- ora orb orc ord ore orh orm oro orr ra- raa rab rac rad rae rah ram rao rar rba rbb rbc rbd rbe rbh rbm rbo rbr rca rcb rcc rcd rce rch rcm rco rcr rda rdb rdc rdd rde rdh rdm rdo rdr re- rea reb rec red ree reh rem reo rer rh- rha rhb rhc rhd rhe rhh rhm rho rhr rma rmb rmc rmd rme rmh rmm rmo rmr roa rob roc rod roe roh rom roo ror rra rrb rrc rrd rrh rrm rrr

a-be a-do a-ha aaaa aaab aaac aaad aaae aaah aaam aaar aaba aabb aabc aabd aabh aabm aaca aacb aacc aacd aace aach aacm aaco aacr aada aadc aade aaea aaec aaem aaha aama aamb aamc aamd aame aamo aamr aaoe aaoo aara aarc aard aare aarm aaro abaa abab abac abad abae abam abar abb- abba abbb abbe abbo abbr abca abcb abcc abcd abch abcr abda abdo abec abed abee aber abha abhm abho abhr abma abmb abmc aboa abob abod aboh aboo abor abra abrc abro acaa acab acac acad acae acar acba acca accc accd acce acch accm acco acda acdb acdc acde acdm ace- acea acec aced aceh acem acer acha ache achh acho achr acma acmc acme acmh acoa acod acoe acoh acom acor acr- acra acrc acre acrm acro acrr adaa adab adac adad adae adah adam adao adar adba adbc adcc adda addc addd adde addo addr adea adeb adee adeh adem adeo ader adha adhd adho adma admb adme admr adob adoc adod adoe adoo ador adra adre adro aeac aecb aede aeer aeom aer- aera aerc aerd aero ahab ahac ahad ahah aham ahar ahed ahem ahha ahmc ahme ahoa ahod ahoe ahom ahor ahra ahrc ahre ahrr amaa amac amad amae amah amam amar amb- amba ambe ambo ambr amca amcc amco amda amdh amdo amec amed amee amer amm- amma amme ammo amob amoc amod amoo amor amra amrc amro aoah aoba aoca aoce aodh aoma aora aorb