-al a-a a-c a-t aaa aac aad aae aaf aal aas aat ac- aca acc acd ace acf acl acs act ad- ada adc add ade adf adl ads adt aea aec aed aee aef ael aes aet af- afa afc afd afe aff afl afs aft al- ala alc ald ale alf all als alt as- asa asc asd ase asf asl ass ast at- ata atc atd ate atf atl ats att c-- caa cac cad cae caf cal cas cat cca ccc ccd cce ccf ccl ccs cct cda cdc cdd cde cdf cdl cds cdt ce- cea cec ced cee cef cel ces cet cfa cfc cfd cfe cff cfl cfs cft cl- cla clc cld cle clf cll cls clt csa csc csd cse csf csl css cst cta ctc ctd cte ctf ctl cts ctt daa dac dad dae daf dal das dat dca dcc dcd dce dcf dcl dcs dct dda ddc ddd dde ddf ddl dds ddt de- dea dec ded dee def del des det dfa dfc dfd dfe dff dfl dfs dft dl- dla dlc dld dle dlf dll dls dlt dsa dsc dsd dse dsf dsl dss dst dta dtc dtd dte dtf dtl dts dtt eaa eac ead eae eaf eal eas eat ec- eca ecc ecd ece ecf ecl ecs ect ed- eda edc edd ede edf edl eds edt eea eec eed eee eef eel ees eet ef- efa efc efd efe eff efl efs eft ela elc eld ele elf ell els elt es- esa esc esd ese esf esl ess est eta etc etd ete etf etl ets ett faa fac fad fae faf fal fas fat fca fcc fcd fce fcf fcl fcs fct fda fdc fdd fde fdf fdl fds fdt fea fec fed fee fef fel fes fet ffa ffc ffd ffe fff ffl ffs fft fla flc fld fle flf fll fls flt fsa fsc fsd fse fsf fsl fss fst fta ftc ftd fte ftf ftl fts ftt la- laa lac lad lae laf lal las lat lca lcc lcd lce lcf lcl lcs lct lda ldc ldd lde ldf ldl lds ldt lea lec led lee lef lel les let lfa lfc lfd lfe lff lfl lfs lft lla llc lld lle llf lll lls llt lsa lsc lsd lse lsf lsl lss lst lta ltc ltd lte ltf ltl lts ltt saa sac sad sae saf sal sas sat sca scc scd sce scf scl scs sct sda sdc sdd sde sdf sdl sds sdt se- sea sec sed see sef sel ses set sfa sfc sfd sfe sff sfl sfs sft sla slc sld sle slf sll sls slt ss- ssa ssc ssd sse ssf ssl sss sst sta stc std ste stf stl sts stt taa tac tad tae taf tal tas tat tca tcc tcd tce tcf tcl tcs tct tda tdc tdd tde tdf tdl tds tdt te- tea tec ted tee tef tel tes tet tfa tfc tfd tfe tff tfl tfs tft tla tlc tld tle tlf tll tls tlt tsa tsc tsd tse tsf tsl tss tst tta ttc ttd tte ttf ttl tts ttt