c-- c-j ccc cce ccj ccm ccn cct ce- cec cee cej cem cen cet cjc cmc cme cmj cmm cmn cmt cn- cnc cne cnj cnm cnn cnt ctc cte ctm ctn ctt ec- ecc ece ecj ecm ecn ect eec eee eem een eet ejc ejt em- emc eme emm emn emt en- enc ene enm enn ent etc ete etj etm etn ett jcc jce jcm jct jec jee jej jem jen jet jjc jjj jmc jme jmj jmm jmn jmt jnc jne jnj jnn jnt jtc jte jtm jtn jtt mc- mcc mce mcm mcn mct mec mee mej mem men met mjc mje mjj mjm mjt mmc mme mmj mmm mmn mmt mnc mne mnj mnm mnn mnt mtc mte mtj mtm mtn mtt ncc nce ncm ncn nct ne- nec nee nej nem nen net njc nje njm njn nmc nme nmm nmn nmt nnc nne nnm nnn nnt ntc nte ntm ntn ntt tcc tce tcj tcm tcn tct te- tec tee tej tem ten tet tjc tje tjm tmc tme tmj tmm tmn tmt tnc tne tnm tnn tnt ttc tte ttm ttn ttt