-al -ol -th a-a a-b a-c a-t aaa aab aac aah aal aao aar aas aat ab- aba abb abc abh abl abo abr abs abt ac- aca acb acc ach acl aco acr acs act aha ahb ahc ahh ahl aho ahr ahs aht al- ala alb alc alh all alo alr als alt aoa aob aoc aoh aol aoo aor aos aot ar- ara arb arc arh arl aro arr ars art as- asa asb asc ash asl aso asr ass ast at- ata atb atc ath atl ato atr ats att baa bab bac bah bal bao bar bas bat bba bbb bbc bbh bbl bbo bbr bbs bbt bca bcb bcc bch bcl bco bcr bcs bct bha bhb bhc bhh bhl bho bhr bhs bht bla blb blc blh bll blo blr bls blt boa bob boc boh bol boo bor bos bot bra brb brh brl bro brr brs brt bsa bsb bsc bsh bsl bso bsr bss bst bta btb btc bth btl bto btr bts btt c-- caa cab cac cah cal cao car cas cat cba cbb cbc cbh cbl cbo cbr cbs cbt cca ccb ccc cch ccl cco ccr ccs cct ch- cha chb chc chh chl cho chr chs cht cl- cla clb clc clh cll clo clr cls clt co- coa cob coc coh col coo cor cos cot cra crb crc crh crl cro crr crs crt csa csb csc csh csl cso csr css cst cta ctb ctc cth ctl cto ctr cts ctt haa hab hac hah hal hao har has hat hba hbb hbc hbh hbl hbo hbr hbs hbt hca hcb hcc hch hcl hco hcr hcs hct hha hhb hhc hhh hhl hho hhr hhs hht hla hlb hlc hlh hll hlo hlr hls hlt hoa hob hoc hoh hol hoo hor hos hot hr- hra hrb hrc hrh hrl hro hrr hrs hrt hsa hsb hsc hsh hsl hsr hss hst hta htb htc hth htl hto htr hts htt la- laa lab lac lah lal lao lar las lat lba lbb lbc lbh lbl lbo lbr lbs lbt lca lcb lcc lch lcl lco lcr lcs lct lha lhb lhc lhh lho lhr lhs lht lla llb llc lll llo llr lls llt loa lob loc loh lol loo lor los lot lra lrb lrc lrh lro lrr lrs lrt lsa lsb lsc lsh lsl lso lsr lss lst lta ltb ltc lth ltl lto ltr lts ltt oaa oab oac oah oal oao oar oas oat ob- oba obb obc obh obl obo obr obs obt oc- oca ocb occ och ocl oco ocr ocs oct oha ohc ohh ohl oho ohr ohs oht ola olb olc oll olo ols olt oo- ooa oob ooc ooh ool ooo oor oos oot or- ora orb orc orh orl oro orr ors ort os- osa osb osc osh osl oso osr oss ost ot- ota otb otc oth otl oto otr ots ott ra- raa rab rac rah ral rao rar ras rat rba rbb rbc rbh rbl rbo rbr rbs rbt rca rcb rcc rch rcl rco rcr rcs rct rh- rha rhb rhc rhh rhl rho rhr rhs rht rla rlc rlh rll rlo rlr rls rlt roa rob roc roh rol roo ror ros rot rra rrb rrc rrh rrl rrr rrs rrt rsa rsb rsc rsh rsl rso rsr rss rst rta rtb rtc rtl rto rtr rts rtt saa sab sac sah sal sao sar sas sat sba sbb sbc sbh sbl sbo sbr sbs sbt sca scb scc sch scl sco scr scs sct sh- sha shb shc shh shl sho shr shs sht sla slb slc slh sll slo slr sls slt soa sob soc soh sol soo sor sos sot sr- sra srb src srh srl sro srr srs srt ss- ssa ssb ssc ssh ssl sso ssr sss sst sta stb stc sth stl sto str sts stt taa tab tac tah tal tao tar tas tat tba tbb tbc tbh tbl tbo tbr tbs tbt tca tcb tcc tch tcl tco tcr tcs tct th- tha thb thc thh thl tho thr ths tht tla tlc tlh tll tlo tlr tls tlt to- toa tob toc toh tol too tor tos tot tra trb trc trh trl tro trr trs trt tsa tsb tsc tsh tsl tso tsr tss tst tta ttb ttc tth ttl tto ttr tts ttt

a-ha aaaa aaab aaac aaah aaal aaar aaas aaba aabb aabc aabh aabl aabt aaca aacb aacc aach aacl aaco aacr aacs aact aaha aahl aahs aala aalc aall aalo aals aaoo aara aarc aaro aars aart aasa aasc aass aast aata aatc aatt abaa abab abac abal abar abas abat abb- abba abbb abbo abbr abbs abbt abca abcb abcc abch abcl abcr abcs abct abha abho abhr abhs abla ablo abls aboa abob aboh abol aboo abor abos abot abra abrc abro abrs abs- absa absl abss abta abts ac-t acaa acab acac acar acas acat acba acbl acca accc acch acco accs acct acha achh achl acho achr achs acht acla aclc aclr acls acoa acoh acol acor acos acot acr- acra acrc acro acrr acrs acsa acsc acsl acss acst acta actc acth actl acto acts actt ahab ahac ahah ahal ahar ahas ahat ahha ahhs ahla ahoa ahor ahot ahra ahrc ahrr ahrs ahsa ahso ahss ahta ahto ahts alaa alac alal alao alar alas alat alb- alba albc albo albs alca alcc alco alcs alha alhs all- alla allh alll allo allr alls aloa aloc aloh alol aloo alor alos alot alro alsa alsc also alst alta alto alts aoah aoba aoca aocs aola aora aorb aors aort aoss aotc arab arac arah aral arar aras arat arba arbh arbs arc- arca arch arco arcs arct arh- arhs arla arlo aroa arob aroo aror aros arr- arra arrc arrh arro arrr arrs arrt ars- arsa