-ic c-- ccc cce cci ccn ccs cct ccx ce- cec cee cei cen ces cet cex ci- cic cie cii cin cis cit cix cn- cnc cne cni cnn cns cnt cnx csc cse csi csn css cst csx ctc cte cti ctn cts ctt ctx cxc cxi cxs cxt cxx ec- ecc ece eci ecn ecs ect ecx eec eee een ees eet eex eic eie eii ein eis eit eix en- enc ene eni enn ens ent es- esc ese esi esn ess est esx etc ete eti etn ets ett etx ex- exc exe exi exs ext exx icc ice ici icn ics ict ie- iec iee iei ien ies iet iex iic iie iii iin iis iit iix in- inc ine ini inn ins int inx is- isc ise isi isn iss ist itc ite iti itn its itt itx ixc ixe ixi ixn n-i ncc nce nci ncn ncs nct ncx ne- nec nee nei nen nes net nex nic nie nii nin nis nit nix nnc nne nni nnn nns nnt nsc nse nsi nsn nss nst nsx ntc nte nti ntn nts ntt ntx nxc nxt scc sce sci scn scs sct scx se- sec see sei sen ses set sex sic sie sii sin sis sit six snc sne sni snn sns snt ss- ssc sse ssi ssn sss sst ssx stc ste sti stn sts stt stx sxc sxi sxn sxs sxt t-x tcc tce tci tcn tcs tct tcx te- tec tee tei ten tes tet tex tic tie tii tin tis tit tix tnc tne tni tnn tns tnt tnx tsc tse tsi tsn tss tst tsx ttc tte tti ttn tts ttt ttx txe txi txn txs txt xci xcx xee xen xes xet xex xic xie xii xin xis xit xix xnc xns xsc xsi xss xst xtc xti xts xtx xxi xxx