c-- ccc cce ccl ccm ccn ccv ce- cec cee cel cem cen cev cl- clc cle cll clm cln clv cmc cme cml cmm cmn cmv cn- cnc cne cnl cnm cnn cnv cvc cve cvl cvm cvn cvv ec- ecc ece ecl ecm ecn ecv eec eee eel eem een eev elc ele ell elm eln elv em- emc eme eml emm emn emv en- enc ene enl enm enn env evc eve evl evm evn evv lcc lce lcl lcm lcn lcv lec lee lel lem len lev llc lle lll llm lln llv lmc lme lml lmm lmn lmv lnc lne lnl lnm lnn lvc lve lvl lvm lvn lvv m-v mc- mcc mce mcl mcm mcn mcv mec mee mel mem men mev mlc mle mll mlm mln mlv mmc mme mml mmm mmn mmv mnc mne mnl mnm mnn mvc mve mvl mvm mvn mvv ncc nce ncl ncm ncn ncv ne- nec nee nel nem nen nev nlc nle nll nlm nln nlv nmc nme nml nmm nmn nnc nne nnl nnm nnn nnv nvc nve nvl nvm nvn nvv v-e vcc vce vcl vcm vcn vec vee vel vem ven vl- vlc vle vll vlm vlv vm- vmc vmm vmn vn- vnl vnm vnv vvc vvm vvv