c-- ccc cce ccg ccl ccm ccs ce- cec cee ceg cel cem ces cgc cge cgg cgl cgm cgs cl- clc cle clg cll clm cls cmc cme cmg cml cmm cms csc cse csg csl csm css ec- ecc ece ecg ecl ecm ecs eec eee eeg eel eem ees egc ege egg egl egm egs elc ele elg ell elm els em- emc eme emg eml emm ems es- esc ese esg esl esm ess gcc gce gcg gcl gcm gcs ge- gec gee geg gel gem ges ggc ggg ggm ggs glc gle glg gll glm gls gmc gme gmg gml gmm gms gsc gse gsg gsl gsm gss lcc lce lcg lcl lcm lcs lec lee leg lel lem les lgc lge lgg lgl lgm lgs llc lle llg lll llm lls lmc lme lmg lml lmm lms lsc lse lsg lsl lsm lss mc- mcc mce mcg mcl mcm mcs mec mee meg mel mem mes mgc mge mgl mgm mgs mlc mle mlg mll mlm mls mmc mme mmg mml mmm mms msc mse msg msl msm mss scc sce scg scl scm scs se- sec see seg sel sem ses sgc sge sgg sgl sgm sgs slc sle slg sll slm sls smc sme smg sml smm sms ss- ssc sse ssg ssl ssm sss