-al a-a a-c aaa aac aad aae aaf aag aal aas ac- aca acc acd ace acf acg acl acs ad- ada adc add ade adf adg adl ads aea aec aed aee aef aeg ael aes af- afa afc afd afe aff afg afl afs ag- aga agc agd age agf agg agl ags al- ala alc ald ale alf alg all als as- asa asc asd ase asf asg asl ass c-- caa cac cad cae caf cag cal cas cca ccc ccd cce ccf ccg ccl ccs cda cdc cdd cde cdf cdg cdl cds ce- cea cec ced cee cef ceg cel ces cfa cfc cfd cfe cff cfg cfl cfs cga cgc cgd cge cgg cgl cgs cl- cla clc cld cle clf clg cll cls csa csc csd cse csf csg csl css daa dac dad dae daf dag dal das dca dcc dcd dce dcf dcg dcl dcs dda ddc ddd dde ddf ddg ddl dds de- dea dec ded dee def deg del des dfa dfc dfd dfe dff dfg dfl dfs dga dgc dgd dge dgf dgg dgl dgs dl- dla dlc dld dle dlf dlg dll dls dsa dsc dsd dse dsf dsg dsl dss eaa eac ead eae eaf eag eal eas ec- eca ecc ecd ece ecf ecg ecl ecs ed- eda edc edd ede edf edg edl eds eea eec eed eee eef eeg eel ees ef- efa efc efd efe eff efg efl efs ega egc egd ege egf egg egl egs ela elc eld ele elf elg ell els es- esa esc esd ese esf esg esl ess faa fac fad fae faf fag fal fas fca fcc fcd fce fcf fcg fcl fcs fda fdc fdd fde fdf fdg fdl fds fea fec fed fee fef feg fel fes ffa ffc ffd ffe fff ffg ffl ffs fga fgc fgd fge fgf fgg fgl fgs fla flc fld fle flf flg fll fls fsa fsc fsd fse fsf fsg fsl fss g-d gaa gac gad gae gaf gag gal gas gca gcc gcd gce gcf gcg gcl gcs gda gdc gdd gde gdf gdl gds ge- gea gec ged gee gef geg gel ges gfa gfc gfd gfe gff gfl gfs gga ggc ggd ggg ggs gla glc gld gle glf glg gll gls gsa gsc gsd gse gsf gsg gsl gss la- laa lac lad lae laf lag lal las lca lcc lcd lce lcf lcg lcl lcs lda ldc ldd lde ldf ldg ldl lds lea lec led lee lef leg lel les lfa lfc lfd lfe lff lfg lfl lfs lga lgc lgd lge lgf lgg lgl lgs lla llc lld lle llf llg lll lls lsa lsc lsd lse lsf lsg lsl lss saa sac sad sae saf sag sal sas sca scc scd sce scf scg scl scs sda sdc sdd sde sdf sdg sdl sds se- sea sec sed see sef seg sel ses sfa sfc sfd sfe sff sfg sfl sfs sga sgc sgd sge sgf sgg sgl sgs sla slc sld sle slf slg sll sls ss- ssa ssc ssd sse ssf ssg ssl sss