-al a-a a-b a-c a-t aaa aab aac aad aae aal aan aat aau ab- aba abb abc abd abe abl abn abt abu ac- aca acb acc acd ace acl acn act acu ad- ada adb adc add ade adl adn adt adu aea aeb aec aed aee ael aen aet aeu al- ala alb alc ald ale all aln alt alu an- ana anb anc and ane anl ann ant anu at- ata atb atc atd ate atl atn att atu au- aua aub auc aud aue aul aun aut b-u baa bab bac bad bae bal ban bat bau bba bbb bbc bbd bbe bbl bbn bbt bbu bca bcb bcc bcd bce bcl bcn bct bcu bda bdb bdc bdd bde bdl bdt bdu be- bea beb bec bed bee bel ben bet beu bla blb blc bld ble bll bln blt blu bna bnb bnc bnd bne bnl bnn bnt bnu bta btb btc btd bte btl btn btt btu bua bub buc bud bue bul bun but buu c-- caa cab cac cad cae cal can cat cau cba cbb cbc cbd cbe cbl cbn cbt cbu cca ccb ccc ccd cce ccl ccn cct ccu cda cdb cdc cdd cde cdl cdn cdt cdu ce- cea ceb cec ced cee cel cen cet ceu cl- cla clb clc cld cle cll cln clt clu cn- cna cnb cnc cnd cne cnl cnn cnt cnu cta ctb ctc ctd cte ctl ctn ctt ctu cua cub cuc cud cue cul cun cut cuu daa dab dac dad dae dal dan dat dau dba dbb dbc dbd dbe dbl dbn dbt dbu dca dcb dcc dcd dce dcl dcn dct dcu dda ddb ddc ddd dde ddl ddn ddt ddu de- dea deb dec ded dee del den det deu dl- dla dlb dlc dld dle dll dlt dlu dna dnb dnc dnd dne dnl dnn dnt dta dtb dtc dtd dte dtl dtn dtt dtu dua dub duc dud due dul dun dut eaa eab eac ead eae eal ean eat eau eba ebb ebc ebd ebe ebl ebn ebt ebu ec- eca ecb ecc ecd ece ecl ecn ect ecu ed- eda edb edc edd ede edl edn edt edu eea eeb eec eed eee eel een eet ela elb elc eld ele ell eln elt elu en- ena enb enc end ene enl enn ent enu eta etb etc etd ete etl etn ett etu eu- eua eub euc eud eue eul eun eut la- laa lab lac lad lae lal lan lat lau lba lbb lbc lbd lbe lbl lbt lbu lca lcb lcc lcd lce lcl lcn lct lcu lda ldb ldc ldd lde ldl ldn ldt ldu lea leb lec led lee lel len let leu lla llb llc lld lle lll lln llt llu lna lnb lnc lnd lne lnl lnn lnt lnu lta ltb ltc ltd lte ltl ltt ltu lua lub luc lud lue lul lun lut luu naa nab nac nad nae nal nan nat nau nba nbb nbc nbd nbe nbl nbn nbt nbu nca ncb ncc ncd nce ncl ncn nct ncu nda ndb ndc ndd nde ndl ndn ndt ndu ne- nea neb nec ned nee nel nen net neu nla nlb nlc nld nle nll nln nlt nlu nna nnb nnc nne nnl nnn nnt nnu nta ntb ntc ntd nte ntn ntt ntu nua nub nuc nud nue nul nun nut nuu taa tab tac tad tae tal tan tat tau tba tbb tbc tbd tbe tbl tbn tbt tbu tca tcb tcc tcd tce tcl tcn tct tcu tda tdb tdc tdd tde tdl tdn tdt tdu te- tea teb tec ted tee tel ten tet teu tla tlc tld tle tll tln tlt tlu tna tnb tnc tnd tne tnl tnn tnt tta ttb ttc ttd tte ttl ttn ttt ttu tua tub tuc tud tue tul tun tut tuu ua- uaa uab uac uad uae ual uan uat uau uba ubb ubc ube ubl ubn ubt ubu uca ucb ucc ucd uce ucl ucn uct ucu uda udb udc udd ude udl udn udt udu uea ueb uec ued uee uel uen uet ula ulb ulc uld ule ull uln ult ulu un- una unb unc und une unl unn unt unu uta utb utc utd ute utl utn utt utu uua uuc uue uun uut uuu