-al -ol -th a-a a-b a-c a-t aaa aab aac aaf aah aal aao aat ab- aba abb abc abf abh abl abo abt ac- aca acb acc acf ach acl aco act af- afa afb afc aff afh afl afo aft aha ahb ahc ahf ahh ahl aho aht al- ala alb alc alf alh all alo alt aoa aob aoc aof aoh aol aoo aot at- ata atb atc atf ath atl ato att baa bab bac baf bah bal bao bat bba bbb bbc bbf bbh bbl bbo bbt bca bcb bcc bcf bch bcl bco bct bfa bfb bfc bff bfh bfl bfo bft bha bhb bhc bhf bhh bhl bho bht bla blb blc blf blh bll blo blt boa bob boc bof boh bol boo bot bta btb btc btf bth btl bto btt c-- caa cab cac caf cah cal cao cat cba cbb cbc cbf cbh cbl cbo cbt cca ccb ccc ccf cch ccl cco cct cfa cfb cfc cff cfh cfl cfo cft ch- cha chb chc chf chh chl cho cht cl- cla clb clc clf clh cll clo clt co- coa cob coc cof coh col coo cot cta ctb ctc ctf cth ctl cto ctt faa fab fac faf fah fal fao fat fba fbb fbc fbf fbh fbl fbo fbt fca fcb fcc fcf fcl fco fct ffa ffc fff ffh ffl ffo fft fha fhb fhc fhf fhh fhl fho fla flb flc flf fll flo flt foa fob foc fof foh fol foo fot fta ftb ftc ftf fth ftl fto ftt haa hab hac haf hah hal hao hat hba hbb hbc hbf hbh hbl hbo hbt hca hcb hcc hcf hch hcl hco hct hfa hfb hfc hff hfh hfl hfo hft hha hhb hhc hhf hhh hhl hho hht hla hlb hlc hlf hlh hll hlo hlt hoa hob hoc hof hoh hol hoo hot hta htb htc htf hth htl hto htt la- laa lab lac laf lah lal lao lat lba lbb lbc lbf lbh lbl lbo lbt lca lcb lcc lcf lch lcl lco lct lfa lfb lfc lff lfh lfl lfo lft lha lhb lhc lhf lhh lho lht lla llb llc llf lll llo llt loa lob loc lof loh lol loo lot lta ltb ltc ltf lth ltl lto ltt oaa oab oac oaf oah oal oao oat ob- oba obb obc obf obh obl obo obt oc- oca ocb occ ocf och ocl oco oct of- ofa ofb ofc off ofl ofo oft oha ohc ohf ohh ohl oho oht ola olb olc olf oll olo olt oo- ooa oob ooc oof ooh ool ooo oot ot- ota otb otc otf oth otl oto ott taa tab tac taf tah tal tao tat tba tbb tbc tbf tbh tbl tbo tbt tca tcb tcc tcf tch tcl tco tct tfa tfb tfc tff tfh tfl tfo tft th- tha thb thc thf thh thl tho tht tla tlc tlf tlh tll tlo tlt to- toa tob toc tof toh tol too tot tta ttb ttc ttf tth ttl tto ttt

a-ha aaaa aaab aaac aaaf aaah aaal aaba aabb aabc aabh aabl aabt aaca aacb aacc aacf aach aacl aaco aact aafa aafb aafc aaff aafl aaha aahl aala aalc aall aalo aaoo aata aatc aatf aatt abaa abab abac abaf abal abat abb- abba abbb abbo abbt abca abcb abcc abcf abch abcl abct abff abha abho abla ablo aboa abob abof aboh abol aboo abot abta ac-t acaa acab acac acat acba acbl acca accc accf acch acco acct acfc acfl acft acha achh achl acho acht acla aclc acoa acoh acol acot acta actc actf acth actl acto actt afaa afao afat afca afcb afcc afch affa affc affo afft afla aflc afoa afol afoo afta aftc ahab ahac ahah ahal ahat ahfa ahha ahla ahoa ahot ahta ahto alaa alac alal alao alat alb- alba albc albo alca alcc alco alfa alha all- alla allh alll allo aloa aloc alof aloh alol aloo alot alta alto aoah aoba aoca aola aotc aotf at-l at-t ataa atab atac atal atat atca atcc atcf atch atcl atco atfb atfc atha athl atho atla atlo atob atoc atof atol atot atta atto baaa baaf baah baal baat baba babb babo bac- baca bacc bach baco bact bafc baff bafo baft baha bahl baho baht bala balc balf ball balo balt baoh baol bata batc batf bath bato batt bbbb bbch bbfc bblb bcaa bcat bcbc bcca bccc bccl bcfc bcof bctc bfca bffl bfta bftt bhao bhat bhca bhcc bhff bhot blaa blab blac blah blat blbt blfc blob bloc bloo blot boab boac boal boat boba bobb bobo boca boch boco bofa boff bofh boha bohl boho boht bola boll bolo bolt boob booc boof booh bool boot bota botb both boto bott btaa btaf btcc btcl btfc btla btob bttb c-bo caaa caab caac caaf caah caal caat caba cabf cabo cac- caca cacc cach caco cafa cafb cafc caff cafl caha cahl caht cala calc calf call calo calt caol cat- cata catb catc catf cath cato catt cbac cbal cbat cbbc cbca cbcc cbcl cbct cbfb cbfc cbha cbhl cblb cblc cbol cbot cbta cbtc cbtf cbtl ccaa ccab ccac ccaf ccat ccba ccbc ccca cccb cccc cccf cccl ccfa ccfc ccff ccfl ccha cchl ccla cclc ccob ccoc cctb cctc cctl cctt cfaa cfab cfac cfao cfbc cfbt cfca cfcb cfcf cfcl cfco cffb cfoa cfta cftc cfth cftl chaa chab chac chaf chah chal chao chat chca chch chfa chfc chha chlc chlt choc choh chol choo chto chtt clab claf clat clob clof cloo clot cltb cltc coal coat coba cobb cobh cobo coca coch coco coct cofc coff coft coha coho col- cola colb coll colo colt coob coof cooh cool coot cota cotb cotc coth coto cott ctab ctal ctba ctca ctcf ctfc ctfo