c-- ccc cce ccg ccl ccn ce- cec cee ceg cel cen cgc cge cgg cgl cgn cl- clc cle clg cll cln cn- cnc cne cng cnl cnn ec- ecc ece ecg ecl ecn eec eee eeg eel een egc ege egg egl egn elc ele elg ell eln en- enc ene eng enl enn gcc gce gcg gcl gcn ge- gec gee geg gel gen ggc ggg ggn glc gle glg gll gln gnc gne gnl gnn lcc lce lcg lcl lcn lec lee leg lel len lgc lge lgg lgl lgn llc lle llg lll lln lnc lne lng lnl lnn ncc nce ncg ncl ncn ne- nec nee neg nel nen ngc nge ngg ngl ngn nlc nle nlg nll nln nnc nne nng nnl nnn