-ic c-- ccc cce ccg cci ccn ccx ce- cec cee ceg cei cen cex cgc cge cgg cgi cgn ci- cic cie cig cii cin cix cn- cnc cne cng cni cnn cnx cxc cxi cxx ec- ecc ece ecg eci ecn ecx eec eee eeg een eex egc ege egg egi egn egx eic eie eig eii ein eix en- enc ene eng eni enn ex- exc exe exi exx gcc gce gcg gci gcn ge- gec gee geg gei gen gex ggc ggg ggi ggn gic gie gig gii gin gnc gne gni gnn icc ice icg ici icn ie- iec iee ieg iei ien iex igc ige igg igi ign iic iie iii iin iix in- inc ine ing ini inn inx ixc ixe ixi ixn n-i ncc nce ncg nci ncn ncx ne- nec nee neg nei nen nex ngc nge ngg ngi ngn nic nie nig nii nin nix nnc nne nng nni nnn nxc xci xcx xee xeg xen xex xge xgi xic xie xii xin xix xnc xxi xxx