c-- ccc cce ccl ccn ccv ce- cec cee cel cen cev cl- clc cle cll cln clv cn- cnc cne cnl cnn cnv cvc cve cvl cvn cvv ec- ecc ece ecl ecn ecv eec eee eel een eev elc ele ell eln elv en- enc ene enl enn env evc eve evl evn evv lcc lce lcl lcn lcv lec lee lel len lev llc lle lll lln llv lnc lne lnl lnn lvc lve lvl lvn lvv ncc nce ncl ncn ncv ne- nec nee nel nen nev nlc nle nll nln nlv nnc nne nnl nnn nnv nvc nve nvl nvn nvv v-e vcc vce vcl vcn vec vee vel ven vl- vlc vle vll vlv vn- vnl vnv vvc vvv