a-a a-c a-t aaa aac aae aaf aam aao aas aat ac- aca acc ace acf acm aco acs act aea aec aee aef aem aeo aes aet af- afa afc afe aff afm afo afs aft ama amc ame amf amm amo ams amt aoa aoc aoe aof aom aoo aos aot as- asa asc ase asf asm aso ass ast at- ata atc ate atf atm ato ats att c-- caa cac cae caf cam cao cas cat cca ccc cce ccf ccm cco ccs cct ce- cea cec cee cef cem ceo ces cet cfa cfc cfe cff cfm cfo cfs cft cma cmc cme cmf cmm cmo cms cmt co- coa coc coe cof com coo cos cot csa csc cse csf csm cso css cst cta ctc cte ctf ctm cto cts ctt eaa eac eae eaf eam eao eas eat ec- eca ecc ece ecf ecm eco ecs ect eea eec eee eef eem eeo ees eet ef- efa efc efe eff efm efo efs eft em- ema emc eme emf emm emo ems emt eo- eoa eoc eoe eof eom eoo eos eot es- esa esc ese esf esm eso ess est eta etc ete etf etm eto ets ett faa fac fae faf fam fao fas fat fca fcc fce fcf fcm fco fcs fct fea fec fee fef fem feo fes fet ffa ffc ffe fff ffm ffo ffs fft fma fmc fme fmf fmm fmo fms fmt foa foc foe fof fom foo fos fot fsa fsc fse fsf fsm fso fss fst fta ftc fte ftf ftm fto fts ftt m-f m-o maa mac mae maf mam mao mas mat mc- mca mcc mce mcf mcm mco mcs mct mea mec mee mef mem meo mes met mfa mfc mfe mff mfm mfo mfs mft mma mmc mme mmf mmm mmo mms mmt moa moc moe mof mom moo mos mot msa msc mse msf msm mso mss mst mta mtc mte mtf mtm mto mts mtt oaa oac oae oaf oam oao oas oat oc- oca occ ocf ocm oco ocs oct oea oec oee oef oem oeo oes oet of- ofa ofc ofe off ofm ofo ofs oft om- oma omc ome omf omm omo oms omt oo- ooa ooc oof oom ooo oos oot os- osa osc ose osf osm oso oss ost ot- ota otc ote otf otm oto ots ott saa sac sae saf sam sao sas sat sca scc sce scf scm sco scs sct se- sea sec see sef sem seo ses set sfa sfc sfe sff sfm sfo sfs sft sma smc sme smf smm smo sms smt soa soc soe sof som soo sos sot ss- ssa ssc sse ssf ssm sso sss sst sta stc ste stf stm sto sts stt taa tac tae taf tam tao tas tat tca tcc tce tcf tcm tco tcs tct te- tea tec tee tef tem teo tes tet tfa tfc tfe tff tfm tfo tfs tft tma tmc tme tmf tmm tmo tms tmt to- toa toc toe tof tom too tos tot tsa tsc tse tsf tsm tso tss tst tta ttc tte ttf ttm tto tts ttt