-ic c-- ccc cce cci ccn ccp cct ccx ce- cec cee cei cen cep cet cex ci- cic cie cii cin cip cit cix cn- cnc cne cni cnn cnp cnt cnx cpc cpe cpi cpn cpp cpt cpx ctc cte cti ctn ctp ctt ctx cxc cxi cxp cxt cxx ec- ecc ece eci ecn ect ecx eec eee een eep eet eex eic eie eii ein eip eit eix en- enc ene eni enn enp ent ep- epc epe epi epn epp ept epx etc ete eti etn etp ett etx ex- exc exe exi exp ext exx icc ice ici icn icp ict ie- iec iee iei ien iep iet iex iic iie iii iin iip iit iix in- inc ine ini inn inp int inx ipc ipe ipi ipn ipp ipt ipx itc ite iti itn itp itt itx ixc ixe ixi ixn n-i ncc nce nci ncn ncp nct ncx ne- nec nee nei nen nep net nex nic nie nii nin nip nit nix nnc nne nni nnn nnp nnt npc npe npi npn npp npt ntc nte nti ntn ntp ntt ntx nxc nxt p-p pcc pce pci pcn pcp pct pcx pec pee pei pen pep pet pex pic pie pii pin pip pit pix pn- pnc pne pni pnn pnp pnt pnx ppc ppe ppi ppn ppp ppt ppx pt- ptc pte pti ptn ptp ptt ptx pxc pxe pxt t-x tcc tce tci tcn tcp tct tcx te- tec tee tei ten tep tet tex tic tie tii tin tip tit tix tnc tne tni tnn tnp tnt tnx tpc tpe tpi tpn tpp tpt tpx ttc tte tti ttn ttp ttt ttx txe txi txn txt xci xcp xcx xee xen xep xet xex xic xie xii xin xit xix xnc xpc xpe xpn xpp xpt xtc xti xtp xtx xxi xxp xxx