c-- ccc cce ccg ccl ccn ccs ce- cec cee ceg cel cen ces cgc cge cgg cgl cgn cgs cl- clc cle clg cll cln cls cn- cnc cne cng cnl cnn cns csc cse csg csl csn css ec- ecc ece ecg ecl ecn ecs eec eee eeg eel een ees egc ege egg egl egn egs elc ele elg ell eln els en- enc ene eng enl enn ens es- esc ese esg esl esn ess gcc gce gcg gcl gcn gcs ge- gec gee geg gel gen ges ggc ggg ggn ggs glc gle glg gll gln gls gnc gne gnl gnn gns gsc gse gsg gsl gsn gss lcc lce lcg lcl lcn lcs lec lee leg lel len les lgc lge lgg lgl lgn lgs llc lle llg lll lln lls lnc lne lng lnl lnn lns lsc lse lsg lsl lsn lss ncc nce ncg ncl ncn ncs ne- nec nee neg nel nen nes ngc nge ngg ngl ngn ngs nlc nle nlg nll nln nls nnc nne nng nnl nnn nns nsc nse nsg nsl nsn nss scc sce scg scl scn scs se- sec see seg sel sen ses sgc sge sgg sgl sgn sgs slc sle slg sll sln sls snc sne sng snl snn sns ss- ssc sse ssg ssl ssn sss