-al a-a a-b a-c a-t aaa aab aac aad aae aaf aal aan aat aau ab- aba abb abc abd abe abf abl abn abt abu ac- aca acb acc acd ace acf acl acn act acu ad- ada adb adc add ade adf adl adn adt adu aea aeb aec aed aee aef ael aen aet aeu af- afa afb afc afd afe aff afl afn aft afu al- ala alb alc ald ale alf all aln alt alu an- ana anb anc and ane anf anl ann ant anu at- ata atb atc atd ate atf atl atn att atu au- aua aub auc aud aue auf aul aun aut b-u baa bab bac bad bae baf bal ban bat bau bba bbb bbc bbd bbe bbf bbl bbn bbt bbu bca bcb bcc bcd bce bcf bcl bcn bct bcu bda bdb bdc bdd bde bdf bdl bdt bdu be- bea beb bec bed bee bef bel ben bet beu bfa bfb bfc bfd bfe bff bfl bfn bft bfu bla blb blc bld ble blf bll bln blt blu bna bnb bnc bnd bne bnf bnl bnn bnt bnu bta btb btc btd bte btf btl btn btt btu bua bub buc bud bue buf bul bun but buu c-- caa cab cac cad cae caf cal can cat cau cba cbb cbc cbd cbe cbf cbl cbn cbt cbu cca ccb ccc ccd cce ccf ccl ccn cct ccu cda cdb cdc cdd cde cdf cdl cdn cdt cdu ce- cea ceb cec ced cee cef cel cen cet ceu cfa cfb cfc cfd cfe cff cfl cfn cft cfu cl- cla clb clc cld cle clf cll cln clt clu cn- cna cnb cnc cnd cne cnf cnl cnn cnt cnu cta ctb ctc ctd cte ctf ctl ctn ctt ctu cua cub cuc cud cue cuf cul cun cut cuu daa dab dac dad dae daf dal dan dat dau dba dbb dbc dbd dbe dbf dbl dbn dbt dbu dca dcb dcc dcd dce dcf dcl dcn dct dcu dda ddb ddc ddd dde ddf ddl ddn ddt ddu de- dea deb dec ded dee def del den det deu dfa dfb dfc dfd dfe dff dfl dfn dft dfu dl- dla dlb dlc dld dle dlf dll dlt dlu dna dnb dnc dnd dne dnf dnl dnn dnt dta dtb dtc dtd dte dtf dtl dtn dtt dtu dua dub duc dud due duf dul dun dut eaa eab eac ead eae eaf eal ean eat eau eba ebb ebc ebd ebe ebf ebl ebn ebt ebu ec- eca ecb ecc ecd ece ecf ecl ecn ect ecu ed- eda edb edc edd ede edf edl edn edt edu eea eeb eec eed eee eef eel een eet ef- efa efb efc efd efe eff efl eft ela elb elc eld ele elf ell eln elt elu en- ena enb enc end ene enf enl enn ent enu eta etb etc etd ete etf etl etn ett etu eu- eua eub euc eud eue euf eul eun eut faa fab fac fad fae faf fal fan fat fau fba fbb fbc fbd fbe fbf fbl fbn fbt fbu fca fcb fcc fcd fce fcf fcl fcn fct fcu fda fdb fdc fdd fde fdf fdl fdn fdt fdu fea feb fec fed fee fef fel fen fet feu ffa ffc ffd ffe fff ffl ffn fft ffu fla flb flc fld fle flf fll fln flt flu fna fnb fnc fnd fne fnf fnl fnn fnt fnu fta ftb ftc ftd fte ftf ftl ftn ftt ftu fua fub fud fue fuf ful fun fut fuu la- laa lab lac lad lae laf lal lan lat lau lba lbb lbc lbd lbe lbf lbl lbt lbu lca lcb lcc lcd lce lcf lcl lcn lct lcu lda ldb ldc ldd lde ldf ldl ldn ldt ldu lea leb lec led lee lef lel len let leu lfa lfb lfc lfd lfe lff lfl lfn lft lfu lla llb llc lld lle llf lll lln llt llu lna lnb lnc lnd lne lnl lnn lnt lnu lta ltb ltc ltd lte ltf ltl ltt ltu lua lub luc lud lue luf lul lun lut luu naa nab nac nad nae naf nal nan nat nau nba nbb nbc nbd nbe nbf nbl nbn nbt nbu nca ncb ncc ncd nce ncf ncl ncn nct ncu nda ndb ndc ndd nde ndf ndl ndn ndt ndu ne- nea neb nec ned nee nef nel nen net neu nfa nfb nfc nfd nfe nff nfl nfn nft nfu nla nlb nlc nld nle nlf nll nln nlt nlu nna nnb nnc nne nnf nnl nnn nnt nnu nta ntb ntc ntd nte ntf ntn ntt ntu nua nub nuc nud nue nul nun nut nuu taa tab tac tad tae taf tal tan tat tau tba tbb tbc tbd tbe tbf tbl tbn tbt tbu tca tcb tcc tcd tce tcf tcl tcn tct tcu tda tdb tdc tdd tde tdf tdl tdn tdt tdu te- tea teb tec ted tee tef tel ten tet teu tfa tfb tfc tfd tfe tff tfl tfn tft tfu tla tlc tld tle tlf tll tln tlt tlu tna tnb tnc tnd tne tnf tnl tnn tnt tta ttb ttc ttd tte ttf ttl ttn ttt ttu tua tub tuc tud tue tuf tul tun tut tuu ua- uaa uab uac uad uae uaf ual uan uat uau uba ubb ubc ube ubf ubl ubn ubt ubu uca ucb ucc ucd uce ucf ucl ucn uct ucu uda udb udc udd ude udf udl udn udt udu uea ueb uec ued uee uef uel uen uet ufa ufc ufd ufe uff ufl ufn uft ufu ula ulb ulc uld ule ulf ull uln ult ulu un- una unb unc und une unf unl unn unt unu uta utb utc utd ute utf utl utn utt utu uua