-er a-a a-b a-c aaa aab aac aae aag aah aao aar ab- aba abb abc abe abg abh abo abr ac- aca acb acc ace acg ach aco acr aea aeb aec aee aeg aeh aeo aer ag- aga agb agc age agg agh ago agr aha ahb ahc ahe ahg ahh aho ahr aoa aob aoc aoe aog aoh aoo aor ar- ara arb arc are arg arh aro arr baa bab bac bae bag bah bao bar bba bbb bbc bbe bbg bbh bbo bbr bca bcb bcc bce bcg bch bco bcr be- bea beb bec bee beg beh beo ber bga bgb bgc bge bgg bgh bgo bgr bha bhb bhc bhe bhg bhh bho bhr boa bob boc boe bog boh boo bor bra brb bre brg brh bro brr c-- caa cab cac cae cag cah cao car cba cbb cbc cbe cbg cbh cbo cbr cca ccb ccc cce ccg cch cco ccr ce- cea ceb cec cee ceg ceh ceo cer cga cgb cgc cge cgg cgh cgo cgr ch- cha chb chc che chg chh cho chr co- coa cob coc coe cog coh coo cor cra crb crc cre crg crh cro crr eaa eab eac eae eag eah eao ear eba ebb ebc ebe ebg ebh ebo ebr ec- eca ecb ecc ece ecg ech eco ecr eea eeb eec eee eeg eeo eer ega egb egc ege egg egh ego egr 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 gaa gab gac gae gag gah gao gar gba gbc gbe gbg gbh gbo gbr gca gcb gcc gce gcg gch gco gcr ge- gea geb gec gee geg geh geo ger gga ggb ggc ggg ggh ggo ggr gha ghb ghc ghe ghg ghh gho ghr goa gob goc goe gog goh goo gor gra grb grc gre grg grh gro grr haa hab hac hae hag hah hao har hba hbb hbc hbe hbg hbh hbo hbr hca hcb hcc hce hcg hch hco hcr he- hea heb hec hee heg heh heo her hga hgb hgc hge hgg hgh hgo hgr hha hhb hhc hhe hhg hhh hho hhr hoa hob hoc hoe hog hoh hoo hor hr- hra hrb hrc hre hrg hrh hro hrr oaa oab oac oae oag oah oao oar ob- oba obb obc obe obg obh obo obr oc- oca ocb occ ocg och oco ocr oea oeb oec oee oeg oeh oeo oer oga ogc oge ogg ogh ogo oha ohc ohe ohg ohh oho ohr oo- ooa oob ooc oog ooh ooo oor or- ora orb orc ore org orh oro orr ra- raa rab rac rae rag rah rao rar rba rbb rbc rbe rbg rbh rbo rbr rca rcb rcc rce rcg rch rco rcr re- rea reb rec ree reg reh reo rer rga rgb rgc rge rgg rgh rgo rgr rh- rha rhb rhc rhe rhg rhh rho rhr roa rob roc roe rog roh roo ror rra rrb rrc rrg rrh rrr

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 abb- abba abbb abbe abbo abbr abca abcb abcc abch abcr abec abee aber abha abho abhr aboa abob aboh aboo abor 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 ahha ahoa ahoe ahog ahor ahra ahrc ahre ahrr aoah aoba aoca aoce aora aorb arab arac arae arag arah arar arba arbe arbh arc- arca arce arch arco area arec aree areg areh areo arga argb arge argh argo arh- aroa arob aroe aroo aror arr- arra arrc arre arrg arrh arro arrr 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 bbbb bbch bbeb bbga 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 bor- bora bore borg borh boro borr brab brac brae brag brah brao brca brcb brce brea breb brec bree breg breo brer broa brob broc broe brog broh broo bror brrr c-bo caaa caab caac caah caba cabe cabg cabo cac- caca cacc cace cach caco cacr caec caer caga cage cagg cago cagr caha cahe caor cara carb carc care caro carr cbac cbar cbbc cbca cbcc cbce cbcr cbea cbec cbee cber cbga cbgb cbha cbre cbrh ccaa ccab ccac ccag ccar ccba ccbc ccca cccb cccc ccee ccga ccgc ccha cche cchr ccob ccoc ccra ccrc ccre ccrg ceac cear ceba cec- ceca cece ceco ceeb ceec cege cego ceor cer- cera cerc cere cero cgac cgcc cgcg cger cgro chaa chab chac chae chag chah chao char chca chce chch chea cheb chec chee cheh cher chgb chge chha choc choh choo chor chra chrb chrc chro chrr coag coba cobb cobe cobh cobo coca coce coch coco cogh cogo coha coho coob cooh cor- cora corb corc