-al -er a-a a-b a-c aaa aab aac aae aah aak aal aar ab- aba abb abc abe abh abk abl abr ac- aca acb acc ace ach ack acl acr aea aeb aec aee aeh aek ael aer aha ahb ahc ahe ahh ahk ahl ahr aka akb akc ake akh akk akl akr al- ala alb alc ale alh alk all alr ar- ara arb arc are arh ark arl arr baa bab bac bae bah bak bal bar bba bbb bbc bbe bbh bbk bbl bbr bca bcb bcc bce bch bck bcl bcr be- bea beb bec bee beh bek bel ber bha bhb bhc bhe bhh bhk bhl bhr bka bkb bkc bke bkk bkl bkr bla blb blc ble blh blk bll blr bra brb bre brh brk brl brr c-- caa cab cac cae cah cak cal car cba cbb cbc cbe cbh cbk cbl cbr cca ccb ccc cce cch cck ccl ccr ce- cea ceb cec cee ceh cek cel cer ch- cha chb chc che chh chk chl chr cka ckb ckc ckh cl- cla clb clc cle clh clk cll clr cra crb crc cre crh crk crl crr eaa eab eac eae eah eak eal ear eba ebb ebc ebe ebh ebk ebl ebr ec- eca ecb ecc ece ech eck ecl ecr eea eeb eec eee eek eel eer eha ehb ehc ehe ehh ehl ehr eka ekb ekc eke ekh ekl ekr ela elb elc ele elh elk ell elr era erb erc ere erh erk erl err haa hab hac hae hah hak hal har hba hbb hbc hbe hbh hbk hbl hbr hca hcb hcc hce hch hck hcl hcr he- hea heb hec hee heh hek hel her hha hhb hhc hhe hhh hhk hhl hhr hka hkb hkh hkk hkl hkr hla hlb hlc hle hlh hll hlr hr- hra hrb hrc hre hrh hrk hrl hrr ka- kaa kab kac kae kah kak kal kar kba kbb kbc kbe kbh kbk kbl kbr kca kcb kcc kce kch kck kcl kcr ke- kea keb kec kee keh kek kel ker kha khe khh khk khr kkb kkc kke kkh kkk kkl kkr kl- kla klb klc klh klr kra krc krk krl krr la- laa lab lac lae lah lak lal lar lba lbb lbc lbe lbh lbk lbl lbr lca lcb lcc lce lch lck lcl lcr lea leb lec lee leh lek lel ler lha lhb lhc lhh lhk lhr lka lkb lkh lkl lkr lla llb llc lle llk lll llr lra lrb lrc lrh lrk lrr ra- raa rab rac rae rah rak ral rar rba rbb rbc rbe rbh rbk rbl rbr rca rcb rcc rce rch rcl rcr re- rea reb rec ree reh rek rel rer rh- rha rhb rhc rhe rhh rhl rhr rkb rkc rke rkk rla rlc rle rlh rll rlr rra rrb rrc rrh rrk rrl rrr

a-ak a-be a-ha aaaa aaab aaac aaae aaah aaal aaar aaba aabb aabc aabh aabl aaca aacb aacc aace aach aack aacl aacr aaea aaec aaha aahk aahl aaka aake aala aalc aale aall aara aarc aare abaa abab abac abae abak abal abar abb- abba abbb abbe abbr abca abcb abcc abch abcl abcr abec abee abel aber abha abhr abla able abra abrc acaa acab acac acae acar acba acbl acca accc acce acch ace- acea acec aceh acek acel acer acha ache achh achl achr acke acla aclc acle aclr acr- acra acrc acre acrr aeac aecb aecl aeer aeka aela aelc aer- aera aerc ahab ahac ahah ahal ahar ahel ahha ahla ahle ahra ahrc ahre ahrr akaa akae akah akal akar akca akee akel aker akha akka akle akr- akra akre alaa alac alae alak alal alar alb- alba albc albe alca alcc alce alea alec alee aleh alek aler alha alk- alka alkb alke all- alla alle allh alll allr arab arac arae arah arak aral arar arba arbe arbh arc- arca arce arch area arec aree areh arek arel arh- arka arke arkh arla arle arr- arra arrc arre arrh arrk arrr baaa baah baak baal baar baba babb babe babr bac- baca bacc bace bach back baek bael baer baha bahl bahr bak- baka bake bakh bakl bakr bala balc bale balk ball bar- bara barb barc bare barh bark barr bbbb bbch bbeb bblb bbrc bcaa bcar bcbc bcca bccc bccl bcec bcer bche bcra beah beak beal bear beba bebb bebe beca bech beck beeb beek beel beer behr beka beke bela bele belk bell bera berc bere berk berr bhar bhca bhcc bhel bher bhra blaa blab blac blae blah blak blea bleb blee bleh blek blkb blrc brab brac brae brah brak brca brcb brce brea breb brec bree brek brel brer brka brkb brrr caaa caab caac caah caal caba cabe cac- caca cacc cace cach cack cacr caec caer caha cahe cahl caka cake cala calc cale calk call cara carb carc care cark carl carr cbac cbal cbar cbbc cbca cbcc cbce cbcl cbcr cbea cbec cbee cber cbha cbhl cbka cbkl cbkr cblb cblc cbre cbrh cbrl ccaa ccab ccac ccar ccba ccbc ccca cccb cccc cccl ccee ccel ccha cche cchl cchr ccla cclc ccra ccrc ccre ccrl ceac ceal cear ceba cec- ceca cece ceeb ceec ceel cehl ceke cel- cela celc cele cell cer- cera cerc cere cerl chaa chab chac chae chah chak chal char chca chce chch chea cheb chec chee cheh chek chel cher chha chka chkb chlc chlr chra chrb chrc chrr ckac ckbc ckbe ckch ckck ckcl cker ckrc clab clar clea clec clee clek cler clra crab crac crar crbc crca crcc crce crcr cre- crea creb crec cree creh crkc crkl e-cl e-la eaba eabh eaca eacc each eaec eala ealc eale eara earb eare earh earl ebac ebal ebba ebbc ebbr ebcc ebel eber ebla ecaa