a-a a-c a-t aaa aac aad aae aam aao aas aat ac- aca acc acd ace acm aco acs act ad- ada adc add ade adm ado ads adt aea aec aed aee aem aeo aes aet ama amc amd ame amm amo ams amt aoa aoc aod aoe aom aoo aos aot as- asa asc asd ase asm aso ass ast at- ata atc atd ate atm ato ats att c-- caa cac cad cae cam cao cas cat cca ccc ccd cce ccm cco ccs cct cda cdc cdd cde cdm cdo cds cdt ce- cea cec ced cee cem ceo ces cet cma cmc cmd cme cmm cmo cms cmt co- coa coc cod coe com coo cos cot csa csc csd cse csm cso css cst cta ctc ctd cte ctm cto cts ctt daa dac dad dae dam dao das dat dca dcc dcd dce dcm dco dcs dct dda ddc ddd dde ddm ddo dds ddt de- dea dec ded dee dem deo des det dma dmc dmd dme dmm dmo dms dmt doa doc dod doe dom doo dos dot dsa dsc dsd dse dsm dso dss dst dta dtc dtd dte dtm dto dts dtt eaa eac ead eae eam eao eas eat ec- eca ecc ecd ece ecm eco ecs ect ed- eda edc edd ede edm edo eds edt eea eec eed eee eem eeo ees eet em- ema emc emd eme emm emo ems emt eo- eoa eoc eod eoe eom eoo eos eot es- esa esc esd ese esm eso ess est eta etc etd ete etm eto ets ett m-o maa mac mad mae mam mao mas mat mc- mca mcc mcd mce mcm mco mcs mct mda mdc mdd mde mdm mdo mds mdt mea mec med mee mem meo mes met mma mmc mmd mme mmm mmo mms mmt moa moc mod moe mom moo mos mot msa msc msd mse msm mso mss mst mta mtc mtd mte mtm mto mts mtt oaa oac oad oae oam oao oas oat oc- oca occ ocd ocm oco ocs oct oda odc odd ode odm odo ods odt oea oec oed oee oem oeo oes oet om- oma omc omd ome omm omo oms omt oo- ooa ooc ood oom ooo oos oot os- osa osc osd ose osm oso oss ost ot- ota otc otd ote otm oto ots ott saa sac sad sae sam sao sas sat sca scc scd sce scm sco scs sct sda sdc sdd sde sdm sdo sds sdt se- sea sec sed see sem seo ses set sma smc smd sme smm smo sms smt soa soc sod soe som soo sos sot ss- ssa ssc ssd sse ssm sso sss sst sta stc std ste stm sto sts stt taa tac tad tae tam tao tas tat tca tcc tcd tce tcm tco tcs tct tda tdc tdd tde tdm tdo tds tdt te- tea tec ted tee tem teo tes tet tma tmc tmd tme tmm tmo tms tmt to- toa toc tod toe tom too tos tot tsa tsc tsd tse tsm tso tss tst tta ttc ttd tte ttm tto tts ttt