-er c-- ccc cce cch ccn cco ccp ccr ce- cec cee ceh cen ceo cep cer ch- chc che chh chn cho chp chr cn- cnc cne cnh cnn cno cnp cnr co- coc coe coh con coo cop cor cpc cpe cph cpn cpo cpp cpr crc cre crh crn cro crp crr ec- ecc ece ech ecn eco ecr eec eee een eeo eep eer ehc ehe ehh ehn eho ehp ehr en- enc ene enh enn eno enp enr eo- eoc eoe eoh eon eoo eop eor ep- epc epe eph epn epo epp epr erc ere erh ern ero erp err hcc hce hch hcn hco hcp hcr he- hec hee heh hen heo hep her hhc hhe hhh hhn hho hhp hhr hnc hne hnh hnn hno hoc hoe hoh hon hoo hop hor hpc hpe hph hpn hpo hpp hpr hr- hrc hre hrh hrn hro hrp hrr ncc nce nch ncn nco ncp ncr ne- nec nee neh nen neo nep ner nhc nhe nhh nhn nhp nhr nnc nne nnh nnn nno nnp no- noc noe noh non noo nop nor npc npe nph npn npo npp npr nrc nre nrn nro nrp nrr oc- occ och ocn oco ocp ocr oec oee oeh oen oeo oep oer ohc ohe ohh ohn oho ohp ohr on- onc one onh onn ono onp onr oo- ooc ooh oon ooo oop oor op- opc ope oph opn opo opp opr or- orc ore orh orn oro orp orr p-p pcc pce pch pcn pco pcp pcr pec pee peh pen peo pep per phc phe phn pho php phr pn- pnc pne pnh pnn pno pnp pnr poc poe poh pon poo pop por ppc ppe pph ppn ppo ppp ppr prc pre prh prn pro prp prr rcc rce rch rcn rco rcp rcr re- rec ree reh ren reo rep rer rh- rhc rhe rhh rhn rho rhp rhr rnc rnh rnn rno rnp rnr roc roe roh ron roo rop ror rpc rpe rph rpn rpo rpp rpr rrc rrh rrn rrp rrr