-al -ol -th a-a a-b a-c a-t aaa aab aac aah aal aao aar aat ab- aba abb abc abh abl abo abr abt ac- aca acb acc ach acl aco acr act aha ahb ahc ahh ahl aho ahr aht al- ala alb alc alh all alo alr alt aoa aob aoc aoh aol aoo aor aot ar- ara arb arc arh arl aro arr art at- ata atb atc ath atl ato atr att baa bab bac bah bal bao bar bat bba bbb bbc bbh bbl bbo bbr bbt bca bcb bcc bch bcl bco bcr bct bha bhb bhc bhh bhl bho bhr bht bla blb blc blh bll blo blr blt boa bob boc boh bol boo bor bot bra brb brh brl bro brr brt bta btb btc bth btl bto btr btt c-- caa cab cac cah cal cao car cat cba cbb cbc cbh cbl cbo cbr cbt cca ccb ccc cch ccl cco ccr cct ch- cha chb chc chh chl cho chr cht cl- cla clb clc clh cll clo clr clt co- coa cob coc coh col coo cor cot cra crb crc crh crl cro crr crt cta ctb ctc cth ctl cto ctr ctt haa hab hac hah hal hao har hat hba hbb hbc hbh hbl hbo hbr hbt hca hcb hcc hch hcl hco hcr hct hha hhb hhc hhh hhl hho hhr hht hla hlb hlc hlh hll hlo hlr hlt hoa hob hoc hoh hol hoo hor hot hr- hra hrb hrc hrh hrl hro hrr hrt hta htb htc hth htl hto htr htt la- laa lab lac lah lal lao lar lat lba lbb lbc lbh lbl lbo lbr lbt lca lcb lcc lch lcl lco lcr lct lha lhb lhc lhh lho lhr lht lla llb llc lll llo llr llt loa lob loc loh lol loo lor lot lra lrb lrc lrh lro lrr lrt lta ltb ltc lth ltl lto ltr ltt oaa oab oac oah oal oao oar oat ob- oba obb obc obh obl obo obr obt oc- oca ocb occ och ocl oco ocr oct oha ohc ohh ohl oho ohr oht ola olb olc oll olo olt oo- ooa oob ooc ooh ool ooo oor oot or- ora orb orc orh orl oro orr ort ot- ota otb otc oth otl oto otr ott ra- raa rab rac rah ral rao rar rat rba rbb rbc rbh rbl rbo rbr rbt rca rcb rcc rch rcl rco rcr rct rh- rha rhb rhc rhh rhl rho rhr rht rla rlc rlh rll rlo rlr rlt roa rob roc roh rol roo ror rot rra rrb rrc rrh rrl rrr rrt rta rtb rtc rtl rto rtr rtt taa tab tac tah tal tao tar tat tba tbb tbc tbh tbl tbo tbr tbt tca tcb tcc tch tcl tco tcr tct th- tha thb thc thh thl tho thr tht tla tlc tlh tll tlo tlr tlt to- toa tob toc toh tol too tor tot tra trb trc trh trl tro trr trt tta ttb ttc tth ttl tto ttr ttt

a-ha aaaa aaab aaac aaah aaal aaar aaba aabb aabc aabh aabl aabt aaca aacb aacc aach aacl aaco aacr aact aaha aahl aala aalc aall aalo aaoo aara aarc aaro aart aata aatc aatt abaa abab abac abal abar abat abb- abba abbb abbo abbr abbt abca abcb abcc abch abcl abcr abct abha abho abhr abla ablo aboa abob aboh abol aboo abor abot abra abrc abro abta ac-t acaa acab acac acar acat acba acbl acca accc acch acco acct acha achh achl acho achr acht acla aclc aclr acoa acoh acol acor acot acr- acra acrc acro acrr acta actc acth actl acto actt ahab ahac ahah ahal ahar ahat ahha ahla ahoa ahor ahot ahra ahrc ahrr ahta ahto alaa alac alal alao alar alat alb- alba albc albo alca alcc alco alha all- alla allh alll allo allr aloa aloc aloh alol aloo alor alot alro alta alto aoah aoba aoca aola aora aorb aort aotc arab arac arah aral arar arat arba arbh arc- arca arch arco arct arh- arla arlo aroa arob aroo aror arr- arra arrc arrh arro arrr arrt arta artc arth arto artr at-l at-t ataa atab atac atal atar atat atca atcc atch atcl atco atcr atha athl atho atla atlo atob atoc atol ator atot atra atrc atro atta atto attr baaa baah baal baar baat baba babb babo babr bac- baca bacc bach baco bact baha bahl baho bahr baht bala balc ball balo balt baoh baol bar- bara barb barc barh baro barr bart bata batc bath bato batt bbbb bbch bblb bbrc bcaa bcar bcat bcbc bcca bccc bccl bcor bcra bctc bhao bhar bhat bhca bhcc bhor bhot bhra bhrt blaa blab blac blah blat blbt blob bloc bloo blot blrc boab boac boal boar boat boba bobb bobo boca boch boco boha bohl boho bohr boht bola boll bolo bolt boob booc booh bool boor boot bor- bora borh boro borr bort bota botb both boto bott brab brac brah brao brat brca brcb broa brob broc broh brol broo bror brot brrr brtc btaa btcc btcl btla btob btor btrc btrt bttb c-bo caaa caab caac caah caal caat caba cabo cac- caca cacc cach caco cacr caha cahl caht cala calc call calo calt caol caor cara carb carc carl caro carr cart cat- cata catb catc cath cato catt cbac cbal cbar cbat cbbc cbca cbcc cbcl cbcr cbct cbha cbhl cblb cblc cbol cbot cbrh cbrl cbrt cbta cbtc cbtl ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc cccl ccha cchl cchr ccla cclc ccob ccoc ccra ccrc ccrl ccrt cctb cctc cctl cctt chaa chab chac chah chal chao char chat chca chch chha chlc chlr chlt choc choh chol choo chor chra chrb chrc chro chrr