c-- ccc cce cch cck ccn ce- cec cee ceh cek cen ch- chc che chh chk chn ckc ckh cn- cnc cne cnh cnn ec- ecc ece ech eck ecn eec eee eek een ehc ehe ehh ehn ekc eke ekh en- enc ene enh enk enn hcc hce hch hck hcn he- hec hee heh hek hen hhc hhe hhh hhk hhn hkh hkk hkn hnc hne hnh hnk hnn kcc kce kch kck kcn ke- kec kee keh kek ken khe khh khk khn kkc kke kkh kkk kkn kn- knc kne knk knn ncc nce nch nck ncn ne- nec nee neh nek nen nhc nhe nhh nhk nhn nkc nke nkk nkn nnc nne nnh nnk nnn