-al -er -ic a-a a-b a-c a-i a-t aaa aab aac aae aaf aag aai aal aan aar aat ab- aba abb abc abe abf abg abi abl abn abr abt ac- aca acb acc ace acf acg aci acl acn acr act aea aeb aec aee aef aeg aei ael aen aer aet af- afa afb afc afe aff afg afi afl afn afr aft ag- aga agb agc age agf agg agi agl agn agr agt ai- aia aib aic aie aif aig aii ail ain air ait al- ala alb alc ale alf alg ali all aln alr alt an- ana anb anc ane anf ang ani anl ann anr ant ar- ara arb arc are arf arg ari arl arn arr art at- ata atb atc ate atf atg ati atl atn atr att baa bab bac bae baf bag bai bal ban bar bat bba bbb bbc bbe bbf bbg bbi bbl bbn bbr bbt bca bcb bcc bce bcf bcg bci bcl bcn bcr bct be- bea beb bec bee bef beg bei bel ben ber bet bfa bfb bfc bfe bff bfg bfi bfl bfn bfr bft bga bgb bgc bge bgf bgg bgi bgl bgn bgr bgt bi- bia bib bic bie bif big bii bil bin bir bit bla blb blc ble blf blg bli bll bln blr blt bna bnb bnc bne bnf bng bni bnl bnn bnr bnt bra brb bre brf brg bri brl brn brr brt bta btb btc bte btf btg bti btl btn btr btt c-- caa cab cac cae caf cag cai cal can car cat cba cbb cbc cbe cbf cbg cbi cbl cbn cbr cbt cca ccb ccc cce ccf ccg cci ccl ccn ccr cct ce- cea ceb cec cee cef ceg cei cel cen cer cet cfa cfb cfc cfe cff cfg cfi cfl cfn cfr cft cga cgb cgc cge cgg cgi cgl cgn cgr cgt ci- cia cib cic cie cif cig cii cil cin cir cit cl- cla clb clc cle clf clg cli cll cln clr clt cn- cna cnb cnc cne cnf cng cni cnl cnn cnr cnt cra crb crc cre crf crg cri crl crn crr crt cta ctb ctc cte ctf ctg cti ctl ctn ctr ctt eaa eab eac eae eaf eag eai eal ean ear eat eba ebb ebc ebe ebf ebg ebi ebl ebn ebr ebt ec- eca ecb ecc ece ecf ecg eci ecl ecn ecr ect eea eeb eec eee eef eeg eel een eer eet ef- efa efb efc efe eff efg efi efl efr eft ega egb egc ege egf egg egi egl egn egr egt eia eib eic eie eif eig eii eil ein eir eit ela elb elc ele elf elg eli ell eln elr elt en- ena enb enc ene enf eng eni enl enn enr ent era erb erc ere erf erg eri erl ern err ert eta etb etc ete etf etg eti etl etn etr ett faa fab fac fae faf fag fai fal fan far fat fba fbb fbc fbe fbf fbg fbi fbl fbn fbr fbt fca fcb fcc fce fcf fcg fci fcl fcn fcr fct fea feb fec fee fef feg fei fel fen fer fet ffa ffc ffe fff ffg ffi ffl ffn ffr fft fga fgb fgc fge fgf fgg fgi fgl fgn fgr fgt fia fib fic fie fif fig fii fil fin fir fit fla flb flc fle flf flg fli fll fln flr flt fna fnb fnc fne fnf fng fni fnl fnn fnr fnt fra frb frc fre frf frg fri frl frn frr frt fta ftb ftc fte ftf ftg fti ftl ftn ftr ftt gaa gab gac gae gaf gag gai gal gan gar gat gba gbc gbe gbf gbg gbi gbl gbn gbr gbt gca gcb gcc gce gcf gcg gci gcl gcn gcr gct ge- gea geb gec gee gef geg gei gel gen ger get gfa gfb gfc gfe gff gfi gfl gfr gft gga ggb ggc ggg ggi ggn ggr ggt gia gib gic gie gif gig gii gil gin gir git gla glb glc gle glf glg gli gll gln glr glt gna gnb gnc gne gnf gni gnl gnn gnr gnt gra grb grc gre grf grg gri grl grn grr grt gta gtb gtc gte gtf gtg gti gtl gtn gtr gtt i-f ia- iaa iab iac iae iaf iag iai ial ian iar iat iba ibb ibc ibe ibf ibg ibi ibl ibn ibr ibt ica icb icc ice icf icg ici icl icn icr ict ie- iea iec iee ief ieg iei iel ien ier iet ifa ifb ifc ife iff ifg ifi ifl ifn ifr ift iga igb igc ige igf igg igi igl ign igr igt iia iib iic iie iif iii iil iin iir iit il- ila ilb ilc ile ilf ilg ili ill iln ilr ilt in- ina inb inc ine inf ing ini inl inn inr int ir- ira irb irc ire irf irg iri irl irn irr irt ita itb itc ite itf itg iti itl itn itt la- laa lab lac lae laf lag lai lal lan lar lat lba lbb lbc lbe lbf lbg lbi lbl lbr lbt lca lcb lcc lce lcf lcg lci lcl lcn lcr lct lea leb lec lee lef leg lei lel len ler let lfa lfb lfc lfe lff lfg lfi lfl lfn lfr lft lga lgb lgc lge lgf lgg lgi lgl lgn lgr lgt lia lib lic lie lif lig lii lil lin lir lit lla llb llc lle llf llg lli lll lln llr llt lna lnb lnc lne lng lni lnl lnn lnr lnt lra lrb lrc lrf lrg lri lrn lrr lrt lta ltb ltc lte ltf ltg lti ltl ltr ltt n-i naa nab nac nae naf nag nai nal nan nar nat nba nbb nbc nbe nbf