-er a-a a-b a-c aaa aab aac aae aah aak aam aar ab- aba abb abc abe abh abk abm abr ac- aca acb acc ace ach ack acm acr aea aeb aec aee aeh aek aem aer aha ahb ahc ahe ahh ahk ahm ahr aka akb akc ake akh akk akm akr ama amb amc ame amh amk amm amr ar- ara arb arc are arh ark arm arr baa bab bac bae bah bak bam bar bba bbb bbc bbe bbh bbk bbm bbr bca bcb bcc bce bch bck bcm bcr be- bea beb bec bee beh bek bem ber bha bhb bhc bhe bhh bhk bhm bhr bka bkb bkc bke bkk bkm bkr bma bmb bmc bme bmh bmk bmm bmr bra brb bre brh brk brm brr c-- caa cab cac cae cah cak cam car cba cbb cbc cbe cbh cbk cbm cbr cca ccb ccc cce cch cck ccm ccr ce- cea ceb cec cee ceh cek cem cer ch- cha chb chc che chh chk chm chr cka ckb ckc ckh ckm cma cmb cmc cme cmh cmk cmm cmr cra crb crc cre crh crk crm crr eaa eab eac eae eah eak eam ear eba ebb ebc ebe ebh ebk ebm ebr ec- eca ecb ecc ece ech eck ecm ecr eea eeb eec eee eek eem eer eha ehb ehc ehe ehh ehm ehr eka ekb ekc eke ekh ekr em- ema emb emc eme emh emk emm emr era erb erc ere erh erk erm err haa hab hac hae hah hak ham har hba hbb hbc hbe hbh hbk hbm hbr hca hcb hcc hce hch hck hcm hcr he- hea heb hec hee heh hek hem her hha hhb hhc hhe hhh hhk hhm hhr hka hkb hkh hkk hkm hkr hma hmb hmc hme hmh hmk hmm hmr hr- hra hrb hrc hre hrh hrk hrm hrr ka- kaa kab kac kae kah kak kam kar kba kbb kbc kbe kbh kbk kbm kbr kca kcb kcc kce kch kck kcm kcr ke- kea keb kec kee keh kek kem ker kha khe khh khk khm khr kkb kkc kke kkh kkk kkm kkr kma kmb kmc kme kmh kmk kmm kra krc krk krr m-r maa mab mac mae mah mak mam mar mba mbb mbc mbe mbh mbk mbm mbr mc- mca mcb mcc mce mch mck mcm mcr mea meb mec mee meh mek mem mer mha mhc mhh mhk mhm mhr mka mkb mkc mke mkh mkk mkm mkr mma mmb mmc mme mmh mmk mmm mmr mra mrb mrc mre mrh mrk mrm mrr ra- raa rab rac rae rah rak ram rar rba rbb rbc rbe rbh rbk rbm rbr rca rcb rcc rce rch rcm rcr re- rea reb rec ree reh rek rem rer rh- rha rhb rhc rhe rhh rhm rhr rkb rkc rke rkk rkm rma rmb rmc rme rmh rmm rmr rra rrb rrc rrh rrk rrm rrr

a-ak a-be a-ha aaaa aaab aaac aaae aaah aaam aaar aaba aabb aabc aabh aabm aaca aacb aacc aace aach aack aacm aacr aaea aaec aaem aaha aahk aaka aake aama aamb aamc aame aamr aara aarc aare aarm abaa abab abac abae abak abam abar abb- abba abbb abbe abbr abca abcb abcc abch abcr abec abee aber abha abhm abhr abma abmb abmc abra abrc acaa acab acac acae acar acba acca accc acce acch accm ace- acea acec aceh acek acem acer acha ache achh achr acke acma acmc acme acmh acr- acra acrc acre acrm acrr aeac aecb aeer aeka aer- aera aerc ahab ahac ahah aham ahar ahem ahha ahmc ahme ahra ahrc ahre ahrr akaa akae akah akam akar akca akee aker akha akka akr- akra akre amaa amac amae amah amam amar amb- amba ambe ambr amca amcc amec amee amer amka amm- amma amme amra amrc arab arac arae arah arak aram arar arba arbe arbh arc- arca arce arch arcm area arec aree areh arek arem arh- arka arke arkh arma armc arme armh armm arr- arra arrc arre arrh arrk arrr baaa baah baak baam baar baba babb babe babm babr bac- baca bacc bace bach back baek baer baha bahr bak- baka bake bakh bakr bama bamb bamc bame bamm bar- bara barb barc bare barh bark barm barr bbbb bbch bbcm bbeb bbrc bcaa bcam bcar bcbc bcca bccc bccm bcec bcer bche bcma bcra beah beak beam bear beba bebb bebe beca bech beck beeb beek beem beer behm behr beka beke bema beme bera berc bere berk berm berr bhar bhca bhcc bher bhra bmaa bmce brab brac brae brah brak bram brca brcb brce brea breb brec bree brek brem brer brka brkb brmc brrm brrr caaa caab caac caah caam caba cabe cac- caca cacc cace cach cack cacm cacr caec caem caer caha cahe caka cake cama camb camc came camh camk camm cara carb carc care cark carm carr cbac cbar cbbc cbca cbcc cbce cbcm cbcr cbea cbec cbee cber cbha cbka cbkm cbkr cbme cbre cbrh cbrm ccaa ccab ccac ccam ccar ccba ccbc ccca cccb cccc cccm ccee ccha cche cchr cckm ccma ccmb ccmc ccmm ccra ccrc ccre ceac cear ceba cec- ceca cece cecm ceeb ceec ceem ceke cema cemb ceme cemm cemr cer- cera cerc cere chaa chab chac chae chah chak cham char chca chce chch chcm chea cheb chec chee cheh chek chem cher chha chka chkb chmb chmc chra chrb chrc chrr ckac ckbc ckbe ckch ckck ckcm ckem cker ckrc ckrm cmaa cmac cmah cmba cmbc cmcc cmea cmec cmha cmhc cmmb cmmc cmra cmrr crab crac cram crar crbc crca crcc crce crcr cre- crea creb crec cree creh crem crkc crmb eaba eabh eaca eacc each eaec eama eame eara earb eare earh ebac ebam ebba ebbc ebbr ebcc eber ecaa ecac ecam ecar