c-- ccc ccd cce ccn ccp ccs cct ccx cdc cdd cde cdn cdp cds cdt cdx ce- cec ced cee cen cep ces cet cex cn- cnc cnd cne cnn cnp cns cnt cnx cpc cpd cpe cpn cpp cps cpt cpx csc csd cse csn csp css cst csx ctc ctd cte ctn ctp cts ctt ctx cxc cxp cxs cxt cxx dcc dcd dce dcn dcp dcs dct dcx ddc ddd dde ddn ddp dds ddt ddx de- dec ded dee den dep des det dex dnc dnd dne dnn dnp dns dnt dpc dpd dpe dpn dpp dps dpt dsc dsd dse dsn dsp dss dst dsx dtc dtd dte dtn dtp dts dtt dtx dxc dxd dxn dxp dxs dxt dxx ec- ecc ecd ece ecn ecs ect ecx ed- edc edd ede edn edp eds edt edx eec eed eee een eep ees eet eex en- enc end ene enn enp ens ent ep- epc epd epe epn epp eps ept epx es- esc esd ese esn esp ess est esx etc etd ete etn etp ets ett etx ex- exc exd exe exp exs ext exx ncc ncd nce ncn ncp ncs nct ncx ndc ndd nde ndn ndp nds ndt ne- nec ned nee nen nep nes net nex nnc nne nnn nnp nns nnt npc npd npe npn npp nps npt nsc nsd nse nsn nsp nss nst nsx ntc ntd nte ntn ntp nts ntt ntx nxc nxd nxt p-p pcc pcd pce pcn pcp pcs pct pcx pdc pdd pde pdn pdp pds pdt pdx pec ped pee pen pep pes pet pex pn- pnc pnd pne pnn pnp pns pnt pnx ppc ppd ppe ppn ppp pps ppt ppx ps- psc psd pse psn psp pss pst psx pt- ptc ptd pte ptn ptp pts ptt ptx pxc pxe pxs pxt scc scd sce scn scp scs sct scx sdc sdd sde sdn sdp sds sdt se- sec sed see sen sep ses set sex snc snd sne snn snp sns snt spc spd spe spn spp sps spt spx ss- ssc ssd sse ssn ssp sss sst ssx stc std ste stn stp sts stt stx sxc sxn sxs sxt t-x tcc tcd tce tcn tcp tcs tct tcx tdc tdd tde tdn tdp tds tdt tdx te- tec ted tee ten tep tes tet tex tnc tnd tne tnn tnp tns tnt tnx tpc tpd tpe tpn tpp tps tpt tpx tsc tsd tse tsn tsp tss tst tsx ttc ttd tte ttn ttp tts ttt ttx txe txn txs txt xcd xcp xcx xdc xde xds xdt xed xee xen xep xes xet xex xnc xns xpc xpd xpe xpn xpp xps xpt xsc xsp xss xst xtc xtp xts xtx xxp xxx