-al -ol a-a a-c a-t aaa aac aad aae aaf aag aal aao aas aat ac- aca acc acd ace acf acg acl aco acs act ad- ada adc add ade adf adg adl ado ads adt aea aec aed aee aef aeg ael aeo aes aet af- afa afc afd afe aff afg afl afo afs aft ag- aga agc agd age agf agg agl ago ags agt al- ala alc ald ale alf alg all alo als alt aoa aoc aod aoe aof aog aol aoo aos aot as- asa asc asd ase asf asg asl aso ass ast at- ata atc atd ate atf atg atl ato ats att c-- caa cac cad cae caf cag cal cao cas cat cca ccc ccd cce ccf ccg ccl cco ccs cct cda cdc cdd cde cdf cdg cdl cdo cds cdt ce- cea cec ced cee cef ceg cel ceo ces cet cfa cfc cfd cfe cff cfg cfl cfo cfs cft cga cgc cgd cge cgg cgl cgo cgs cgt cl- cla clc cld cle clf clg cll clo cls clt co- coa coc cod coe cof cog col coo cos cot csa csc csd cse csf csg csl cso css cst cta ctc ctd cte ctf ctg ctl cto cts ctt daa dac dad dae daf dag dal dao das dat dca dcc dcd dce dcf dcg dcl dco dcs dct dda ddc ddd dde ddf ddg ddl ddo dds ddt de- dea dec ded dee def deg del deo des det dfa dfc dfd dfe dff dfg dfl dfo dfs dft dga dgc dgd dge dgf dgg dgl dgs dgt dl- dla dlc dld dle dlf dlg dll dlo dls dlt doa doc dod doe dof dog dol doo dos dot dsa dsc dsd dse dsf dsg dsl dso dss dst dta dtc dtd dte dtf dtg dtl dto dts dtt eaa eac ead eae eaf eag eal eao eas eat ec- eca ecc ecd ece ecf ecg ecl eco ecs ect ed- eda edc edd ede edf edg edl edo eds edt eea eec eed eee eef eeg eel eeo ees eet ef- efa efc efd efe eff efg efl efo efs eft ega egc egd ege egf egg egl ego egs egt ela elc eld ele elf elg ell elo els elt eo- eoa eoc eod eoe eof eog eol eoo eos eot es- esa esc esd ese esf esg esl eso ess est eta etc etd ete etf etg etl eto ets ett faa fac fad fae faf fag fal fao fas fat fca fcc fcd fce fcf fcg fcl fco fcs fct fda fdc fdd fde fdf fdg fdl fdo fds fdt fea fec fed fee fef feg fel feo fes fet ffa ffc ffd ffe fff ffg ffl ffo ffs fft fga fgc fgd fge fgf fgg fgl fgs fgt fla flc fld fle flf flg fll flo fls flt foa foc foe fof fog fol foo fos fot fsa fsc fsd fse fsf fsg fsl fso fss fst fta ftc ftd fte ftf ftg ftl fto fts ftt g-d gaa gac gad gae gaf gag gal gao gas gat gca gcc gcd gce gcf gcg gcl gco gcs gct gda gdc gdd gde gdf gdl gdo gds gdt ge- gea gec ged gee gef geg gel geo ges get gfa gfc gfd gfe gff gfl gfo gfs gft gga ggc ggd ggg ggo ggs ggt gla glc gld gle glf glg gll glo gls glt goa goc god goe gof gog gol goo gos got gsa gsc gsd gse gsf gsg gsl gso gss gst gta gtc gtd gte gtf gtg gtl gto gts gtt la- laa lac lad lae laf lag lal lao las lat lca lcc lcd lce lcf lcg lcl lco lcs lct lda ldc ldd lde ldf ldg ldl ldo lds ldt lea lec led lee lef leg lel leo les let lfa lfc lfd lfe lff lfg lfl lfo lfs lft lga lgc lgd lge lgf lgg lgl lgo lgs lgt lla llc lld lle llf llg lll llo lls llt loa loc lod loe lof log lol loo los lot lsa lsc lsd lse lsf lsg lsl lso lss lst lta ltc ltd lte ltf ltg ltl lto lts ltt oaa oac oad oae oaf oag oal oao oas oat oc- oca occ ocd ocf ocg ocl oco ocs oct oda odc odd ode odf odg odl odo ods odt oea oec oed oee oef oeg oel oeo oes oet of- ofa ofc ofd ofe off ofg ofl ofo ofs oft oga ogc ogd oge ogf ogg ogl ogo ogs ogt ola olc old ole olf olg oll olo ols olt oo- ooa ooc ood oof oog ool ooo oos oot os- osa osc osd ose osf osg osl oso oss ost ot- ota otc otd ote otf otg otl oto ots ott saa sac sad sae saf sag sal sao sas sat sca scc scd sce scf scg scl sco scs sct sda sdc sdd sde sdf sdg sdl sdo sds sdt se- sea sec sed see sef seg sel seo ses set sfa sfc sfd sfe sff sfg sfl sfo sfs sft sga sgc sgd sge sgf sgg sgl sgo sgs sgt sla slc sld sle slf slg sll slo sls slt soa soc sod soe sof sog sol soo sos sot ss- ssa ssc ssd sse ssf ssg ssl sso sss sst sta stc std ste stf stg stl sto sts stt taa tac tad tae taf tag tal tao tas tat tca tcc tcd tce tcf tcg tcl tco tcs tct tda tdc tdd tde tdf tdg tdl tdo tds tdt te- tea tec ted tee tef teg tel teo tes tet tfa tfc tfd tfe tff tfg tfl tfo tfs tft tga tgc tge tgf tgg tgl tgo tgs tgt tla tlc tld tle tlf tlg tll tlo tls tlt to- toa toc tod toe tof tog tol