-al -er a-a a-c a-t aaa aac aad aae aaf aag aal aar aas aat ac- aca acc acd ace acf acg acl acr acs act ad- ada adc add ade adf adg adl adr ads adt aea aec aed aee aef aeg ael aer aes aet af- afa afc afd afe aff afg afl afr afs aft ag- aga agc agd age agf agg agl agr ags agt al- ala alc ald ale alf alg all alr als alt ar- ara arc ard are arf arg arl arr ars art as- asa asc asd ase asf asg asl asr ass ast at- ata atc atd ate atf atg atl atr ats att c-- caa cac cad cae caf cag cal car cas cat cca ccc ccd cce ccf ccg ccl ccr ccs cct cda cdc cdd cde cdf cdg cdl cdr cds cdt ce- cea cec ced cee cef ceg cel cer ces cet cfa cfc cfd cfe cff cfg cfl cfr cfs cft cga cgc cgd cge cgg cgl cgr cgs cgt cl- cla clc cld cle clf clg cll clr cls clt cra crc crd cre crf crg crl crr crs crt csa csc csd cse csf csg csl csr css cst cta ctc ctd cte ctf ctg ctl ctr cts ctt daa dac dad dae daf dag dal dar das dat dca dcc dcd dce dcf dcg dcl dcr dcs dct dda ddc ddd dde ddf ddg ddl ddr dds ddt de- dea dec ded dee def deg del der des det dfa dfc dfd dfe dff dfg dfl dfr dfs dft dga dgc dgd dge dgf dgg dgl dgr dgs dgt dl- dla dlc dld dle dlf dlg dll dlr dls dlt dra drc drd dre drg drl drr drs drt dsa dsc dsd dse dsf dsg dsl dsr dss dst dta dtc dtd dte dtf dtg dtl dtr dts dtt eaa eac ead eae eaf eag eal ear eas eat ec- eca ecc ecd ece ecf ecg ecl ecr ecs ect ed- eda edc edd ede edf edg edl edr eds edt eea eec eed eee eef eeg eel eer ees eet ef- efa efc efd efe eff efg efl efr efs eft ega egc egd ege egf egg egl egr egs egt ela elc eld ele elf elg ell elr els elt era erc erd ere erf erg erl err ers ert es- esa esc esd ese esf esg esl esr ess est eta etc etd ete etf etg etl etr ets ett faa fac fad fae faf fag fal far fas fat fca fcc fcd fce fcf fcg fcl fcr fcs fct fda fdc fdd fde fdf fdg fdl fdr fds fdt fea fec fed fee fef feg fel fer fes fet ffa ffc ffd ffe fff ffg ffl ffr ffs fft fga fgc fgd fge fgf fgg fgl fgr fgs fgt fla flc fld fle flf flg fll flr fls flt fra frc frd fre frf frg frl frr frs frt fsa fsc fsd fse fsf fsg fsl fsr fss fst fta ftc ftd fte ftf ftg ftl ftr fts ftt g-d gaa gac gad gae gaf gag gal gar gas gat gca gcc gcd gce gcf gcg gcl gcr gcs gct gda gdc gdd gde gdf gdl gdr gds gdt ge- gea gec ged gee gef geg gel ger ges get gfa gfc gfd gfe gff gfl gfr gfs gft gga ggc ggd ggg ggr ggs ggt gla glc gld gle glf glg gll glr gls glt gra grc grd gre grf grg grl grr grs grt gsa gsc gsd gse gsf gsg gsl gsr gss gst gta gtc gtd gte gtf gtg gtl gtr gts gtt la- laa lac lad lae laf lag lal lar las lat lca lcc lcd lce lcf lcg lcl lcr lcs lct lda ldc ldd lde ldf ldg ldl ldr lds ldt lea lec led lee lef leg lel ler les let lfa lfc lfd lfe lff lfg lfl lfr lfs lft lga lgc lgd lge lgf lgg lgl lgr lgs lgt lla llc lld lle llf llg lll llr lls llt lra lrc lrd lrf lrg lrr lrs lrt lsa lsc lsd lse lsf lsg lsl lsr lss lst lta ltc ltd lte ltf ltg ltl ltr lts ltt ra- raa rac rad rae raf rag ral rar ras rat rca rcc rcd rce rcf rcg rcl rcr rcs rct rda rdc rdd rde rdf rdg rdl rdr rds rdt re- rea rec red ree ref reg rel rer res ret rfa rfc rfd rfe rff rfg rfl rfr rfs rft rga rgc rgd rge rgf rgg rgr rgs rgt rla rlc rld rle rlf rlg rll rlr rls rlt rra rrc rrd rrf rrg rrl rrr rrs rrt rsa rsc rsd rse rsf rsg rsl rsr rss rst rta rtc rtd rte rtf rtg rtl rtr rts rtt saa sac sad sae saf sag sal sar sas sat sca scc scd sce scf scg scl scr scs sct sda sdc sdd sde sdf sdg sdl sdr sds sdt se- sea sec sed see sef seg sel ser ses set sfa sfc sfd sfe sff sfg sfl sfr sfs sft sga sgc sgd sge sgf sgg sgl sgr sgs sgt sla slc sld sle slf slg sll slr sls slt sr- sra src srd sre srf srg srl srr srs srt ss- ssa ssc ssd sse ssf ssg ssl ssr sss sst sta stc std ste stf stg stl str sts stt taa tac tad tae taf tag tal tar tas tat tca tcc tcd tce tcf tcg tcl tcr tcs tct tda tdc tdd tde tdf tdg tdl tdr tds tdt te- tea tec ted tee tef teg tel ter tes tet tfa tfc tfd tfe tff tfg tfl tfr tfs tft tga tgc tge tgf tgg tgl tgr tgs tgt tla tlc tld tle tlf tlg tll tlr tls tlt tra trc trd tre trf trg trl trr trs trt tsa