c-- ccc cce cch cck ccp ce- cec cee ceh cek cep ch- chc che chh chk chp ckc ckh cpc cpe cph cpk cpp ec- ecc ece ech eck eec eee eek eep ehc ehe ehh ehp ekc eke ekh ekp ep- epc epe eph epp hcc hce hch hck hcp he- hec hee heh hek hep hhc hhe hhh hhk hhp hkh hkk hkp hpc hpe hph hpk hpp kcc kce kch kck kcp ke- kec kee keh kek kep khe khh khk kkc kke kkh kkk kkp kpc kpe kph kpk kpp p-p pcc pce pch pck pcp pec pee peh pek pep phc phe phk php pkc pke pkp ppc ppe pph ppk ppp