-al -ol a-a a-b a-c a-t aaa aab aac aae aaf aal aao aat ab- aba abb abc abe abf abl abo abt ac- aca acb acc ace acf acl aco act aea aeb aec aee aef ael aeo aet af- afa afb afc afe aff afl afo aft al- ala alb alc ale alf all alo alt aoa aob aoc aoe aof aol aoo aot at- ata atb atc ate atf atl ato att baa bab bac bae baf bal bao bat bba bbb bbc bbe bbf bbl bbo bbt bca bcb bcc bce bcf bcl bco bct be- bea beb bec bee bef bel beo bet bfa bfb bfc bfe bff bfl bfo bft bla blb blc ble blf bll blo blt boa bob boc boe bof bol boo bot bta btb btc bte btf btl bto btt c-- caa cab cac cae caf cal cao cat cba cbb cbc cbe cbf cbl cbo cbt cca ccb ccc cce ccf ccl cco cct ce- cea ceb cec cee cef cel ceo cet cfa cfb cfc cfe cff cfl cfo cft cl- cla clb clc cle clf cll clo clt co- coa cob coc coe cof col coo cot cta ctb ctc cte ctf ctl cto ctt eaa eab eac eae eaf eal eao eat eba ebb ebc ebe ebf ebl ebo ebt ec- eca ecb ecc ece ecf ecl eco ect eea eeb eec eee eef eel eeo eet ef- efa efb efc efe eff efl efo eft ela elb elc ele elf ell elo elt eo- eoa eob eoc eoe eof eol eoo eot eta etb etc ete etf etl eto ett faa fab fac fae faf fal fao fat fba fbb fbc fbe fbf fbl fbo fbt fca fcb fcc fce fcf fcl fco fct fea feb fec fee fef fel feo fet ffa ffc ffe fff ffl ffo fft fla flb flc fle flf fll flo flt foa fob foc foe fof fol foo fot fta ftb ftc fte ftf ftl fto ftt la- laa lab lac lae laf lal lao lat lba lbb lbc lbe lbf lbl lbo lbt lca lcb lcc lce lcf lcl lco lct lea leb lec lee lef lel leo let lfa lfb lfc lfe lff lfl lfo lft lla llb llc lle llf lll llo llt loa lob loc loe lof lol loo lot lta ltb ltc lte ltf ltl lto ltt oaa oab oac oae oaf oal oao oat ob- oba obb obc obe obf obl obo obt oc- oca ocb occ ocf ocl oco oct oea oeb oec oee oef oel oeo oet of- ofa ofb ofc ofe off ofl ofo oft ola olb olc ole olf oll olo olt oo- ooa oob ooc oof ool ooo oot ot- ota otb otc ote otf otl oto ott taa tab tac tae taf tal tao tat tba tbb tbc tbe tbf tbl tbo tbt tca tcb tcc tce tcf tcl tco tct te- tea teb tec tee tef tel teo tet tfa tfb tfc tfe tff tfl tfo tft tla tlc tle tlf tll tlo tlt to- toa tob toc toe tof tol too tot tta ttb ttc tte ttf ttl tto ttt

a-be aaaa aaab aaac aaae aaaf aaal aaba aabb aabc aabl aabt aaca aacb aacc aace aacf aacl aaco aact aaea aaec aafa aafb aafc aaff aafl aala aalc aale aall aalo aaoe aaoo aata aatc aatf aatt abaa abab abac abae abaf abal abat abb- abba abbb abbe abbo abbt abca abcb abcc abcf abcl abct abec abee abel abet abff abla able ablo aboa abob abof abol aboo abot abta ac-t acaa acab acac acae acat acba acbl acca accc acce accf acco acct ace- acea acec acel acet acfc acfe acfl acft acla aclc acle acoa acoe acol acot acta actc acte actf actl acto actt aeac aeaf aecb aecl aect aela aelc aeta aetc aetf aeto aett afaa afao afat afca afcb afcc afee afel afet affa affc affo afft afla aflc afle afoa afoe afol afoo afta aftc afte alaa alac alae alal alao alat alb- alba albc albe albo alca alcc alce alco alea alec alee alef aleo alet alfa alfe all- alla alle alll allo aloa aloc aloe alof alol aloo alot alta alte alto aoba aoca aoce aola aole aotc aotf at-l at-t ataa atab atac atae atal atat atca atcc atcf atcl atco atea atec atee atef atel ateo atfb atfc atfe atla atle atlo atob atoc atoe atof atol atot atta atte atto baaa baaf baal baat baba babb babe babo bac- baca bacc bace baco bact bael bafc baff bafo baft bala balc bale balf ball balo balt baol bata batc bate batf bato batt bbbb bbeb bbet bbfc bblb bcaa bcat bcbc bcca bccc bccl bcec bcet bcfc bcof bctc beaf beal beat beba bebb bebe bebo beca beeb beef beel beet befa befe beff befo beft bela bele bell belo belt beo- beof beot beta betc bete beto bett bfca bffl bfta bftt blaa blab blac blae blat blbt blea bleb blee bleo blet blfc blob bloc bloo blot boab boac boal boat boba bobb bobe bobo boca boce boco boea boec boee boef boel boeo boet bofa bofe boff bola bole boll bolo bolt boob booc booe boof bool boot bota botb bote boto bott btaa btaf btcc btcl btec btfc btla btob bttb c-bo caaa caab caac caaf caal caat caba cabe cabf cabo cac- caca cacc cace caco caec cafa cafb cafc cafe caff cafl cala calc cale calf call calo calt caol cat- cata catb catc cate catf cato catt cbac cbal cbat cbbc cbca cbcc cbce cbcl cbct cbea cbec cbee cbef cbet cbfb cbfc cblb cblc cbol cbot cbta cbtc cbtf cbtl ccaa ccab ccac ccaf ccat ccba ccbc ccca cccb cccc cccf cccl ccee ccel ccfa ccfc ccff ccfl ccla cclc ccob ccoc cctb cctc cctl cctt ceac ceal ceat ceba cec- ceca cece ceco