-th a-a a-b a-c a-t aaa aab aac aag aah aao aar aat ab- aba abb abc abg abh abo abr abt ac- aca acb acc acg ach aco acr act ag- aga agb agc agg agh ago agr agt aha ahb ahc ahg ahh aho ahr aht aoa aob aoc aog aoh aoo aor aot ar- ara arb arc arg arh aro arr art at- ata atb atc atg ath ato atr att baa bab bac bag bah bao bar bat bba bbb bbc bbg bbh bbo bbr bbt bca bcb bcc bcg bch bco bcr bct bga bgb bgc bgg bgh bgo bgr bgt bha bhb bhc bhg bhh bho bhr bht boa bob boc bog boh boo bor bot bra brb brg brh bro brr brt bta btb btc btg bth bto btr btt c-- caa cab cac cag cah cao car cat cba cbb cbc cbg cbh cbo cbr cbt cca ccb ccc ccg cch cco ccr cct cga cgb cgc cgg cgh cgo cgr cgt ch- cha chb chc chg chh cho chr cht co- coa cob coc cog coh coo cor cot cra crb crc crg crh cro crr crt cta ctb ctc ctg cth cto ctr ctt gaa gab gac gag gah gao gar gat gba gbc gbg gbh gbo gbr gbt gca gcb gcc gcg gch gco gcr gct gga ggb ggc ggg ggh ggo ggr ggt gha ghb ghc ghg ghh gho ghr ght goa gob goc gog goh goo gor got gra grb grc grg grh gro grr grt gta gtb gtc gtg gth gto gtr gtt haa hab hac hag hah hao har hat hba hbb hbc hbg hbh hbo hbr hbt hca hcb hcc hcg hch hco hcr hct hga hgb hgc hgg hgh hgo hgr hgt hha hhb hhc hhg hhh hho hhr hht hoa hob hoc hog hoh hoo hor hot hr- hra hrb hrc hrg hrh hro hrr hrt hta htb htc htg hth hto htr htt oaa oab oac oag oah oao oar oat ob- oba obb obc obg obh obo obr obt oc- oca ocb occ ocg och oco ocr oct oga ogc ogg ogh ogo ogt oha ohc ohg ohh oho ohr oht oo- ooa oob ooc oog ooh ooo oor oot or- ora orb orc org orh oro orr ort ot- ota otb otc otg oth oto otr ott ra- raa rab rac rag rah rao rar rat rba rbb rbc rbg rbh rbo rbr rbt rca rcb rcc rcg rch rco rcr rct rga rgb rgc rgg rgh rgo rgr rgt rh- rha rhb rhc rhg rhh rho rhr rht roa rob roc rog roh roo ror rot rra rrb rrc rrg rrh rrr rrt rta rtb rtc rtg rto rtr rtt taa tab tac tag tah tao tar tat tba tbb tbc tbg tbh tbo tbr tbt tca tcb tcc tcg tch tco tcr tct tga tgb tgc tgg tgh tgo tgr tgt th- tha thb thc thg thh tho thr tht to- toa tob toc tog toh too tor tot tra trb trc trg trh tro trr trt tta ttb ttc ttg tth tto ttr ttt

a-ha aaaa aaab aaac aaah aaar aaba aabb aabc aabh aabt aaca aacb aacc aach aaco aacr aact aagh aaha aaoo aara aarc aaro aart aata aatc aatt abaa abab abac abag abar abat abb- abba abbb abbo abbr abbt abca abcb abcc abch abcr abct abha abho abhr aboa abob aboh aboo abor abot abra abrc abro abta ac-t acaa acab acac acag acar acat acba acca accc acch acco acct acga acgr acha achh acho achr acht acoa acog acoh acor acot acr- acra acrc acro acrr acta actc actg acth acto actt ag-o agac agag agao agar agat agba agbo agca agcc agco agct agga agha aght agob agog agoo agot agra agro agta agtr ahab ahac ahah ahar ahat ahha ahoa ahog ahor ahot ahra ahrc ahrr ahta ahto aoah aoba aoca aora aorb aort aotc arab arac arag arah arar arat arba arbh arc- arca arch arco arct arga argb argh argo arh- aroa arob aroo aror arr- arra arrc arrg arrh arro arrr arrt arta artc arth arto artr at-t ataa atab atac atar atat atca atcc atch atco atcr atgo atha atho atob atoc ator atot atra atrc atro atta atto attr baaa baah baar baat baba babb babo babr bac- baca bacc bach baco bact baga bagg bagh bago bagt baha baho bahr baht baoh bar- bara barb barc barg barh baro barr bart bata batc bath bato batt bbbb bbch bbga bbrc bbrg bcaa bcar bcat bcbc bcbg bcca bccc bcor bcra bctc bgca bght bhag bhao bhar bhat bhca bhcc bhog bhor bhot bhra bhrt boab boac boag boar boat boba bobb bobo boca boch boco boga bogg bogh bogo bogt boha boho bohr boht boob booc boog booh boor boot bor- bora borg borh boro borr bort bota botb both boto bott brab brac brag brah brao brat brca brcb broa brob broc brog broh broo bror brot brrr brtc btaa btcc btob btor btrc btrt bttb c-bo caaa caab caac caah caat caba cabg cabo cac- caca cacc cach caco cacr caga cagg cago cagr caha caht caor cara carb carc caro carr cart cat- cata catb catc cath cato catt cbac cbar cbat cbbc cbca cbcc cbcr cbct cbga cbgb cbha cbot cbrh cbrt cbta cbtc ccaa ccab ccac ccag ccar ccat ccba ccbc ccca cccb cccc ccga ccgc ccgt ccha cchr ccob ccoc ccra ccrc ccrg ccrt cctb cctc cctt cgac cgcc cgcg cgro chaa chab chac chag chah chao char chat chca chch chgb chha choc choh choo chor chra chrb chrc chro chrr chrt chto chtr chtt coag coat coba cobb cobh cobo coca coch coco coct cogh cogo coha coho coob cooh coot cor- cora corb corc corg coro corr cort cota cotb cotc coth coto cott crab crac crag crar crat crbc crca crcc