-er a-a a-b a-c aaa aab aac aae aag aah aao aar aax ab- aba abb abc abe abg abh abo abr abx ac- aca acb acc ace acg ach aco acr acx aea aeb aec aee aeg aeh aeo aer aex ag- aga agb agc age agg agh ago agr agx aha ahb ahc ahe ahg ahh aho ahr ahx aoa aob aoc aoe aog aoh aoo aor aox ar- ara arb arc are arg arh aro arr arx ax- axa axe axh axo axr axx baa bab bac bae bag bah bao bar bax bba bbb bbc bbe bbg bbh bbo bbr bbx bca bcb bcc bce bcg bch bco bcr bcx be- bea beb bec bee beg beh beo ber bex bga bgb bgc bge bgg bgh bgo bgr bgx bha bhb bhc bhe bhg bhh bho bhr bhx boa bob boc boe bog boh boo bor box bra brb bre brg brh bro brr brx bxb bxo bxx c-- caa cab cac cae cag cah cao car cax cba cbb cbc cbe cbg cbh cbo cbr cbx cca ccb ccc cce ccg cch cco ccr ccx ce- cea ceb cec cee ceg ceh ceo cer cex cga cgb cgc cge cgg cgh cgo cgr ch- cha chb chc che chg chh cho chr chx co- coa cob coc coe cog coh coo cor cox cra crb crc cre crg crh cro crr crx cxc cxh cxo cxr cxx eaa eab eac eae eag eah eao ear eax eba ebb ebc ebe ebg ebh ebo ebr ebx ec- eca ecb ecc ece ecg ech eco ecr ecx eea eeb eec eee eeg eeo eer eex ega egb egc ege egg egh ego egr egx eha ehb ehc ehe ehg ehh eho ehr eo- eoa eob eoc eoe eog eoh eoo eor era erb erc ere erg erh ero err ex- exa exc exe exh exo exr exx gaa gab gac gae gag gah gao gar gba gbc gbe gbg gbh gbo gbr gbx gca gcb gcc gce gcg gch gco gcr ge- gea geb gec gee geg geh geo ger gex gga ggb ggc ggg ggh ggo ggr gha ghb ghc ghe ghg ghh gho ghr goa gob goc goe gog goh goo gor gox gra grb grc gre grg grh gro grr grx gxa haa hab hac hae hag hah hao har hax hba hbb hbc hbe hbg hbh hbo hbr hbx hca hcb hcc hce hcg hch hco hcr he- hea heb hec hee heg heh heo her hex hga hgb hgc hge hgg hgh hgo hgr hha hhb hhc hhe hhg hhh hho hhr hoa hob hoc hoe hog hoh hoo hor hox hr- hra hrb hrc hre hrg hrh hro hrr hxc oaa oab oac oae oag oah oao oar oax ob- oba obb obc obe obg obh obo obr obx oc- oca ocb occ ocg och oco ocr ocx oea oeb oec oee oeg oeh oeo oer oex oga ogc oge ogg ogh ogo ogx oha ohc ohe ohg ohh oho ohr oo- ooa oob ooc oog ooh ooo oor oox or- ora orb orc ore org orh oro orr orx ox- oxa oxb oxc oxo oxx ra- raa rab rac rae rag rah rao rar rax rba rbb rbc rbe rbg rbh rbo rbr rbx rca rcb rcc rce rcg rch rco rcr rcx re- rea reb rec ree reg reh reo rer rex rga rgb rgc rge rgg rgh rgo rgr rgx rh- rha rhb rhc rhe rhg rhh rho rhr roa rob roc roe rog roh roo ror rox rra rrb rrc rrg rrh rrr rxr xaa xac xag xar xbc xbe xbr xbx xcb xch xcr xcx xee xeg xer xex xge xoa xoc xog xoo xor xox xrc xrx xxo xxx

a-be a-ha aaaa aaab aaac aaae aaah aaar aaba aabb aabc aabh aaca aacb aacc aace aach aaco aacr aaea aaec aage aagh aaha aaoe aaoo aara aarc aare aaro abaa abab abac abae abag abar abax abb- abba abbb abbe abbo abbr abca abcb abcc abch abcr abec abee aber abha abho abhr aboa abob aboh aboo abor abox abra abrc abro acaa acab acac acae acag acar acba acca accc acce acch acco ace- acea acec aceh acer acga acgr acha ache achh acho achr acoa acoe acog acoh acor acr- acra acrc acre acro acrr aeac aecb aeer aega aer- aera aerc aero ag-o agac agag agao agar agba agbo agca agcc agce agco agea agee ager agga agge agha aghe agob agog agoo agra agre agro ahab ahac ahah ahar ahex ahha ahoa ahoe ahog ahor ahra ahrc ahre ahrr aoah aoba aoca aoce aora aorb arab arac arae arag arah arar arax arba arbe arbh arc- arca arce arch arco area arec aree areg areh areo arex arga argb arge argh argo arh- aroa arob aroe aroo aror arr- arra arrc arre arrg arrh arro arrr axar axce axer axo- axoa axxo ba-x baaa baah baar baba babb babe babo babr bac- baca bacc bace bach baco baer baga bage bagg bagh bago baha baho bahr baoh bar- bara barb barc bare barg barh baro barr barx bbbb bbch bbeb bbga bbox bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcec bcer bche bcor bcra beag beah bear beba bebb bebe bebo beca bech beeb beeg beer bega begg bego behr beo- beor bera berc bere berg bero berr bgca bhag bhao bhar bhca bhcc bher bhog bhor bhra boab boac boag boar boba bobb bobe bobo boca boce boch boco boea boec boee boeo boer boga boge bogg bogh bogo boha boho bohr boob booc booe boog booh boor boox bor- bora bore borg borh boro borr boxa brab brac brae brag brah brao brax brca brcb brce brea breb brec bree breg breo brer brex broa brob broc broe brog broh broo bror brox brrr c-bo caaa caab caac caah caba cabe cabg cabo cac- caca cacc cace cach