a-a a-c a-t aaa aac aad aae aaf aao aap aas aat ac- aca acc acd ace acf aco acp acs act ad- ada adc add ade adf ado adp ads adt aea aec aed aee aef aeo aep aes aet af- afa afc afd afe aff afo afp afs aft aoa aoc aod aoe aof aoo aop aos aot ap- apa apc apd ape apf apo app aps apt as- asa asc asd ase asf aso asp ass ast at- ata atc atd ate atf ato atp ats att c-- caa cac cad cae caf cao cap cas cat cca ccc ccd cce ccf cco ccp ccs cct cda cdc cdd cde cdf cdo cdp cds cdt ce- cea cec ced cee cef ceo cep ces cet cfa cfc cfd cfe cff cfo cfp cfs cft co- coa coc cod coe cof coo cop cos cot cpa cpc cpd cpe cpf cpo cpp cps cpt csa csc csd cse csf cso csp css cst cta ctc ctd cte ctf cto ctp cts ctt daa dac dad dae daf dao dap das dat dca dcc dcd dce dcf dco dcp dcs dct dda ddc ddd dde ddf ddo ddp dds ddt de- dea dec ded dee def deo dep des det dfa dfc dfd dfe dff dfo dfp dfs dft doa doc dod doe dof doo dop dos dot dpa dpc dpd dpe dpf dpo dpp dps dpt dsa dsc dsd dse dsf dso dsp dss dst dta dtc dtd dte dtf dto dtp dts dtt eaa eac ead eae eaf eao eap eas eat ec- eca ecc ecd ece ecf eco ecs ect ed- eda edc edd ede edf edo edp eds edt eea eec eed eee eef eeo eep ees eet ef- efa efc efd efe eff efo efp efs eft eo- eoa eoc eod eoe eof eoo eop eos eot ep- epa epc epd epe epf epo epp eps ept es- esa esc esd ese esf eso esp ess est eta etc etd ete etf eto etp ets ett faa fac fad fae faf fao fap fas fat fca fcc fcd fce fcf fco fcp fcs fct fda fdc fdd fde fdf fdo fdp fds fdt fea fec fed fee fef feo fep fes fet ffa ffc ffd ffe fff ffo ffp ffs fft foa foc foe fof foo fop fos fot fpa fpc fpd fpe fpo fpp fps fpt fsa fsc fsd fse fsf fso fsp fss fst fta ftc ftd fte ftf fto ftp fts ftt oaa oac oad oae oaf oao oap oas oat oc- oca occ ocd ocf oco ocp ocs oct oda odc odd ode odf odo odp ods odt oea oec oed oee oef oeo oep oes oet of- ofa ofc ofd ofe off ofo ofp ofs oft oo- ooa ooc ood oof ooo oop oos oot op- opa opc opd ope opf opo opp ops opt os- osa osc osd ose osf oso osp oss ost ot- ota otc otd ote otf oto otp ots ott p-p paa pac pad pae paf pao pap pas pat pca pcc pcd pce pcf pco pcp pcs pct pda pdc pdd pde pdf pdo pdp pds pdt pea pec ped pee pef peo pep pes pet pfa pfc pfd pfe pff pfo pfp pfs pft poa poc pod poe pof poo pop pos pot ppa ppc ppd ppe ppf ppo ppp pps ppt ps- psa psc psd pse psf pso psp pss pst pt- pta ptc ptd pte ptf pto ptp pts ptt saa sac sad sae saf sao sap sas sat sca scc scd sce scf sco scp scs sct sda sdc sdd sde sdf sdo sdp sds sdt se- sea sec sed see sef seo sep ses set sfa sfc sfd sfe sff sfo sfp sfs sft soa soc sod soe sof soo sop sos sot spa spc spd spe spf spo spp sps spt ss- ssa ssc ssd sse ssf sso ssp sss sst sta stc std ste stf sto stp sts stt taa tac tad tae taf tao tap tas tat tca tcc tcd tce tcf tco tcp tcs tct tda tdc tdd tde tdf tdo tdp tds tdt te- tea tec ted tee tef teo tep tes tet tfa tfc tfd tfe tff tfo tfp tfs tft to- toa toc tod toe tof too top tos tot tpa tpc tpd tpe tpf tpo tpp tps tpt tsa tsc tsd tse tsf tso tsp tss tst tta ttc ttd tte ttf tto ttp tts ttt