c-- ccc cce cck ccl ccn ccu ce- cec cee cek cel cen ceu ckc cl- clc cle clk cll cln clu cn- cnc cne cnl cnn cnu cuc cue cuk cul cun cuu ec- ecc ece eck ecl ecn ecu eec eee eek eel een ekc eke ekl eku elc ele elk ell eln elu en- enc ene enk enl enn enu eu- euc eue eul eun kcc kce kck kcl kcn kcu ke- kec kee kek kel ken kkc kke kkk kkl kkn kku kl- klc klu kn- knc kne knk knl knn knu kuc kue kuk kul kun kuu lcc lce lck lcl lcn lcu lec lee lek lel len leu lkl llc lle llk lll lln llu lnc lne lnk lnl lnn lnu luc lue luk lul lun luu ncc nce nck ncl ncn ncu ne- nec nee nek nel nen neu nkc nke nkk nkn nku nlc nle nlk nll nln nlu nnc nne nnk nnl nnn nnu nuc nue nuk nul nun nuu ucc uce uck ucl ucn ucu uec uee uel uen ukc uke ukk ukl ukn uku ulc ule ulk ull uln ulu un- unc une unk unl unn unu uuc uue uun uuu