c-- ccc ccd cce ccf ccm cco ccs cct cdc cdd cde cdf cdm cdo cds cdt ce- cec ced cee cef cem ceo ces cet cfc cfd cfe cff cfm cfo cfs cft cmc cmd cme cmf cmm cmo cms cmt co- coc cod coe cof com coo cos cot csc csd cse csf csm cso css cst ctc ctd cte ctf ctm cto cts ctt dcc dcd dce dcf dcm dco dcs dct ddc ddd dde ddf ddm ddo dds ddt de- dec ded dee def dem deo des det dfc dfd dfe dff dfm dfo dfs dft dmc dmd dme dmf dmm dmo dms dmt doc dod doe dof dom doo dos dot dsc dsd dse dsf dsm dso dss dst dtc dtd dte dtf dtm dto dts dtt ec- ecc ecd ece ecf ecm eco ecs ect ed- edc edd ede edf edm edo eds edt eec eed eee eef eem eeo ees eet ef- efc efd efe eff efm efo efs eft em- emc emd eme emf emm emo ems emt eo- eoc eod eoe eof eom eoo eos eot es- esc esd ese esf esm eso ess est etc etd ete etf etm eto ets ett fcc fcd fce fcf fcm fco fcs fct fdc fdd fde fdf fdm fdo fds fdt fec fed fee fef fem feo fes fet ffc ffd ffe fff ffm ffo ffs fft fmc fmd fme fmf fmm fmo fms fmt foc foe fof fom foo fos fot fsc fsd fse fsf fsm fso fss fst ftc ftd fte ftf ftm fto fts ftt m-f m-o mc- mcc mcd mce mcf mcm mco mcs mct mdc mdd mde mdf mdm mdo mds mdt mec med mee mef mem meo mes met mfc mfd mfe mff mfm mfo mfs mft mmc mmd mme mmf mmm mmo mms mmt moc mod moe mof mom moo mos mot msc msd mse msf msm mso mss mst mtc mtd mte mtf mtm mto mts mtt oc- occ ocd ocf ocm oco ocs oct odc odd ode odf odm odo ods odt oec oed oee oef oem oeo oes oet of- ofc ofd ofe off ofm ofo ofs oft om- omc omd ome omf omm omo oms omt oo- ooc ood oof oom ooo oos oot os- osc osd ose osf osm oso oss ost ot- otc otd ote otf otm oto ots ott scc scd sce scf scm sco scs sct sdc sdd sde sdf sdm sdo sds sdt se- sec sed see sef sem seo ses set sfc sfd sfe sff sfm sfo sfs sft smc smd sme smf smm smo sms smt soc sod soe sof som soo sos sot ss- ssc ssd sse ssf ssm sso sss sst stc std ste stf stm sto sts stt tcc tcd tce tcf tcm tco tcs tct tdc tdd tde tdf tdm tdo tds tdt te- tec ted tee tef tem teo tes tet tfc tfd tfe tff tfm tfo tfs tft tmc tmd tme tmf tmm tmo tms tmt to- toc tod toe tof tom too tos tot tsc tsd tse tsf tsm tso tss tst ttc ttd tte ttf ttm tto tts ttt