-al -er -ol a-a a-b a-c aaa aab aac aae aah aal aao aar aax ab- aba abb abc abe abh abl abo abr abx ac- aca acb acc ace ach acl aco acr acx aea aeb aec aee aeh ael aeo aer aex aha ahb ahc ahe ahh ahl aho ahr ahx al- ala alb alc ale alh all alo alr alx aoa aob aoc aoe aoh aol aoo aor aox ar- ara arb arc are arh arl aro arr arx ax- axa axe axh axl axo axr axx baa bab bac bae bah bal bao bar bax bba bbb bbc bbe bbh bbl bbo bbr bbx bca bcb bcc bce bch bcl bco bcr bcx be- bea beb bec bee beh bel beo ber bex bha bhb bhc bhe bhh bhl bho bhr bhx bla blb blc ble blh bll blo blr blx boa bob boc boe boh bol boo bor box bra brb bre brh brl bro brr brx bxb bxl bxo bxx c-- caa cab cac cae cah cal cao car cax cba cbb cbc cbe cbh cbl cbo cbr cbx cca ccb ccc cce cch ccl cco ccr ccx ce- cea ceb cec cee ceh cel ceo cer cex ch- cha chb chc che chh chl cho chr chx cl- cla clb clc cle clh cll clo clr clx co- coa cob coc coe coh col coo cor cox cra crb crc cre crh crl cro crr crx cxc cxh cxl cxo cxr cxx eaa eab eac eae eah eal eao ear eax eba ebb ebc ebe ebh ebl ebo ebr ebx ec- eca ecb ecc ece ech ecl eco ecr ecx eea eeb eec eee eel eeo eer eex eha ehb ehc ehe ehh ehl eho ehr ela elb elc ele elh ell elo elr elx eo- eoa eob eoc eoe eoh eol eoo eor era erb erc ere erh erl ero err ex- exa exc exe exh exl exo exr exx haa hab hac hae hah hal hao har hax hba hbb hbc hbe hbh hbl hbo hbr hbx hca hcb hcc hce hch hcl hco hcr he- hea heb hec hee heh hel heo her hex hha hhb hhc hhe hhh hhl hho hhr hla hlb hlc hle hlh hll hlo hlr hlx hoa hob hoc hoe hoh hol hoo hor hox hr- hra hrb hrc hre hrh hrl hro hrr hxc hxl la- laa lab lac lae lah lal lao lar lax lba lbb lbc lbe lbh lbl lbo lbr lbx lca lcb lcc lce lch lcl lco lcr lcx lea leb lec lee leh lel leo ler lex lha lhb lhc lhh lho lhr lhx lla llb llc lle lll llo llr loa lob loc loe loh lol loo lor lox lra lrb lrc lrh lro lrr lxc lxo lxr lxx oaa oab oac oae oah oal oao oar oax ob- oba obb obc obe obh obl obo obr obx oc- oca ocb occ och ocl oco ocr ocx oea oeb oec oee oeh oel oeo oer oex oha ohc ohe ohh ohl oho ohr ola olb olc ole oll olo oo- ooa oob ooc ooh ool ooo oor oox or- ora orb orc ore orh orl oro orr orx ox- oxa oxb oxc oxo oxx ra- raa rab rac rae rah ral rao rar rax rba rbb rbc rbe rbh rbl rbo rbr rbx rca rcb rcc rce rch rcl rco rcr rcx re- rea reb rec ree reh rel reo rer rex rh- rha rhb rhc rhe rhh rhl rho rhr rla rlc rle rlh rll rlo rlr roa rob roc roe roh rol roo ror rox rra rrb rrc rrh rrl rrr rxr xaa xac xal xar xbc xbe xbl xbr xbx xcb xch xcl xcr xcx xee xel xer xex xla xlb xlr xoa xoc xoo xor xox xrc xrx xxl xxo xxx

a-be a-ha aaaa aaab aaac aaae aaah aaal aaar aaba aabb aabc aabh aabl aaca aacb aacc aace aach aacl aaco aacr aaea aaec aaha aahl aala aalc aale aall aalo aaoe aaoo aara aarc aare aaro abaa abab abac abae abal abar abax abb- abba abbb abbe abbo abbr abca abcb abcc abch abcl abcr abec abee abel aber abha abho abhr abla able ablo aboa abob aboh abol aboo abor abox abra abrc abro acaa acab acac acae acar acba acbl acca accc acce acch acco ace- acea acec aceh acel acer acha ache achh achl acho achr acla aclc acle aclr acoa acoe acoh acol acor acr- acra acrc acre acro acrr aeac aecb aecl aeer aela aelc aer- aera aerc aero ahab ahac ahah ahal ahar ahel ahex ahha ahla ahle ahoa ahoe ahor ahra ahrc ahre ahrr alaa alac alae alal alao alar alb- alba albc albe albo alca alcc alce alco alea alec alee aleh aleo aler alex alha all- alla alle allh alll allo allr aloa aloc aloe aloh alol aloo alor alro alxa aoah aoba aoca aoce aola aole aora aorb arab arac arae arah aral arar arax arba arbe arbh arc- arca arce arch arco area arec aree areh arel areo arex arh- arla arle arlo aroa arob aroe aroo aror arr- arra arrc arre arrh arro arrr axal axar axce axel axer axle axo- axoa axxo ba-x baaa baah baal baar baba babb babe babo babr bac- baca bacc bace bach baco bael baer baha bahl baho bahr bala balc bale ball balo baoh baol bar- bara barb barc bare barh baro barr barx bbbb bbch bbeb bblb bbox bbrc bcaa bcar bcbc bcca bccc bccl bcec bcer bche bcor bcra beah beal bear beba bebb bebe bebo beca bech beeb beel beer behr bela bele bell belo beo- beor bera berc bere bero berr bhao bhar bhca bhcc bhel bher bhor bhra blaa blab blac blae blah blea bleb blee bleh bleo blob bloc bloo blrc boab boac boal boar boba bobb bobe bobo boca boce boch boco boea boec boee boel