-al -er a-a a-b a-i a-t aaa aab aae aaf aag aai aal aan aar aas aat ab- aba abb abe abf abg abi abl abn abr abs abt aea aeb aee aef aeg aei ael aen aer aes aet af- afa afb afe aff afg afi afl afn afr afs aft ag- aga agb age agf agg agi agl agn agr ags agt ai- aia aib aie aif aig aii ail ain air ais ait al- ala alb ale alf alg ali all aln alr als alt an- ana anb ane anf ang ani anl ann anr ans ant ar- ara arb are arf arg ari arl arn arr ars art as- asa asb ase asf asg asi asl asn asr ass ast at- ata atb ate atf atg ati atl atn atr ats att baa bab bae baf bag bai bal ban bar bas bat bba bbb bbe bbf bbg bbi bbl bbn bbr bbs bbt be- bea beb bee bef beg bei bel ben ber bes bet bfa bfb bfe bff bfg bfi bfl bfn bfr bfs bft bga bgb bge bgf bgg bgi bgl bgn bgr bgs bgt bi- bia bib bie bif big bii bil bin bir bis bit bla blb ble blf blg bli bll bln blr bls blt bna bnb bne bnf bng bni bnl bnn bnr bns bnt bra brb bre brf brg bri brl brn brr brs brt bsa bsb bse bsf bsg bsi bsl bsn bsr bss bst bta btb bte btf btg bti btl btn btr bts btt eaa eab eae eaf eag eai eal ean ear eas eat eba ebb ebe ebf ebg ebi ebl ebn ebr ebs ebt eea eeb eee eef eeg eel een eer ees eet ef- efa efb efe eff efg efi efl efr efs eft ega egb ege egf egg egi egl egn egr egs egt eia eib eie eif eig eii eil ein eir eis eit ela elb ele elf elg eli ell eln elr els elt en- ena enb ene enf eng eni enl enn enr ens ent era erb ere erf erg eri erl ern err ers ert es- esa esb ese esf esg esi esl esn esr ess est eta etb ete etf etg eti etl etn etr ets ett faa fab fae faf fag fai fal fan far fas fat fba fbb fbe fbf fbg fbi fbl fbn fbr fbs fbt fea feb fee fef feg fei fel fen fer fes fet ffa ffe fff ffg ffi ffl ffn ffr ffs fft fga fgb fge fgf fgg fgi fgl fgn fgr fgs fgt fia fib fie fif fig fii fil fin fir fis fit fla flb fle flf flg fli fll fln flr fls flt fna fnb fne fnf fng fni fnl fnn fnr fns fnt fra frb fre frf frg fri frl frn frr frs frt fsa fsb fse fsf fsg fsi fsl fsn fsr fss fst fta ftb fte ftf ftg fti ftl ftn ftr fts ftt gaa gab gae gaf gag gai gal gan gar gas gat gba gbe gbf gbg gbi gbl gbn gbr gbs gbt ge- gea geb gee gef geg gei gel gen ger ges get gfa gfb gfe gff gfi gfl gfr gfs gft gga ggb ggg ggi ggn ggr ggs ggt gia gib gie gif gig gii gil gin gir gis git gla glb gle glf glg gli gll gln glr gls glt gna gnb gne gnf gni gnl gnn gnr gns gnt gra grb gre grf grg gri grl grn grr grs grt gsa gsb gse gsf gsg gsi gsl gsn gsr gss gst gta gtb gte gtf gtg gti gtl gtn gtr gts gtt i-f ia- iaa iab iae iaf iag iai ial ian iar ias iat iba ibb ibe ibf ibg ibi ibl ibn ibr ibs ibt ie- iea iee ief ieg iei iel ien ier ies iet ifa ifb ife iff ifg ifi ifl ifn ifr ifs ift iga igb ige igf igg igi igl ign igr igs igt iia iib iie iif iii iil iin iir iis iit il- ila ilb ile ilf ilg ili ill iln ilr ils ilt in- ina inb ine inf ing ini inl inn inr ins int ir- ira irb ire irf irg iri irl irn irr irs irt is- isa isb ise isf isg isi isl isn isr iss ist ita itb ite itf itg iti itl itn its itt la- laa lab lae laf lag lai lal lan lar las lat lba lbb lbe lbf lbg lbi lbl lbr lbs lbt lea leb lee lef leg lei lel len ler les let lfa lfb lfe lff lfg lfi lfl lfn lfr lfs lft lga lgb lge lgf lgg lgi lgl lgn lgr lgs lgt lia lib lie lif lig lii lil lin lir lis lit lla llb lle llf llg lli lll lln llr lls llt lna lnb lne lng lni lnl lnn lnr lns lnt lra lrb lrf lrg lri lrn lrr lrs lrt lsa lsb lse lsf lsg lsi lsl lsn lsr lss lst lta ltb lte ltf ltg lti ltl ltr lts ltt n-i naa nab nae naf nag nai nal nan nar nas nat nba nbb nbe nbf nbg nbi nbl nbn nbr nbs nbt ne- nea neb nee nef neg nei nel nen ner nes net nfa nfb nfe nff nfi nfl nfn nfr nfs nft nga ngb nge ngf ngg ngi ngl ngn ngs ngt nia nib nie nif nig nii nil nin nir nis nit nla nlb nle nlf nlg nli nll nln nlr nls nlt nna nnb nne nnf nng nni nnl nnn nns nnt nra nrb nre nrf nrg nri nrl nrn nrr nrs nrt nsa nsb nse nsf nsg nsi nsl nsn nsr nss nst nta ntb nte ntf ntg nti ntn ntr nts ntt ra- raa rab rae raf rag rai ral ran rar ras rat rba rbb rbe rbf rbg rbi rbl rbn rbr rbs rbt