-er -ic c-- ccc cce cch cci cco ccp ccr ccz ce- cec cee ceh cei ceo cep cer cez ch- chc che chh chi cho chp chr chz ci- cic cie cih cii cio cip cir co- coc coe coh coi coo cop cor coz cpc cpe cph cpi cpo cpp cpr cpz crc cre crh cri cro crp crr crz cz- czc cze czo ec- ecc ece ech eci eco ecr eec eee eeo eep eer ehc ehe ehh ehi eho ehp ehr eic eie eii eio eip eir eo- eoc eoe eoh eoi eoo eop eor ep- epc epe eph epi epo epp epr epz erc ere erh eri ero erp err erz eze ezh ezo ezr ezz h-i hcc hce hch hci hco hcp hcr he- hec hee heh hei heo hep her hez hhc hhe hhh hhi hho hhp hhr hhz hic hie hih hii hio hip hir hoc hoe hoh hoi hoo hop hor hpc hpe hph hpi hpo hpp hpr hr- hrc hre hrh hri hro hrp hrr hrz hze hzo hzp icc ice ich ici ico icp icr icz ie- iec iee iei iep ier ihc ihe ihh ihi iho ihp ihr iic iie iih iii iio iip iir io- ioc ioe ioh ioi ioo iop ior ipc ipe ipi ipo ipp ipr ir- irc ire iri iro irp irr ize izh izi izo izz o-i oc- occ och oci oco ocp ocr ocz oec oee oeh oei oeo oep oer ohc ohe ohh ohi oho ohp ohr oic oie oii oio oip oir oiz oo- ooc ooh ooi ooo oop oor op- opc ope oph opi opo opp opr or- orc ore orh ori oro orp orr orz oze ozo ozz p-p pcc pce pch pci pco pcp pcr pec pee peh pei peo pep per pez phc phe phi pho php phr pic pie pih pii pio pip pir piz poc poe poh poi poo pop por poz ppc ppe pph ppi ppo ppp ppr ppz prc pre prh pri pro prp prr prz pzc pzp rcc rce rch rci rco rcp rcr re- rec ree reh rei reo rep rer rez rh- rhc rhe rhh rhi rho rhp rhr ric rie rih rii rio rip rir riz roc roe roh roi roo rop ror roz rpc rpe rph rpi rpo rpp rpr rpz rrc rrh rri rrp rrr rze rzo zce zco zec zee zeh zeo zep zer zez zhc zhe zhi zho zhr zie zio zip zir ziz zo- zoc zoe zoi zoo zor zpc zpe zpi zpo zpp zpr zrh zro zrp zzr zzz