-er -ic c-- ccc ccd cce cci ccn cco ccp ccr cdc cdd cde cdi cdn cdo cdp cdr ce- cec ced cee cei cen ceo cep cer ci- cic cid cie cii cin cio cip cir cn- cnc cnd cne cni cnn cno cnp cnr co- coc cod coe coi con coo cop cor cpc cpd cpe cpi cpn cpo cpp cpr crc crd cre cri crn cro crp crr dcc dcd dce dci dcn dco dcp dcr ddc ddd dde ddi ddn ddo ddp ddr de- dec ded dee dei den deo dep der di- dic did die dii din dio dip dir dnc dnd dne dni dnn dno dnp dnr doc dod doe doi don doo dop dor dpc dpd dpe dpi dpn dpo dpp dpr drc drd dre dri drn dro drp drr ec- ecc ecd ece eci ecn eco ecr ed- edc edd ede edi edn edo edp edr eec eed eee een eeo eep eer eic eid eie eii ein eio eip eir en- enc end ene eni enn eno enp enr eo- eoc eod eoe eoi eon eoo eop eor ep- epc epd epe epi epn epo epp epr erc erd ere eri ern ero erp err i-d icc icd ice ici icn ico icp icr idc idd ide idi idn ido idp idr ie- iec ied iee iei ien iep ier iic iid iie iii iin iio iip iir in- inc ind ine ini inn ino inp inr io- ioc iod ioe ioi ion ioo iop ior ipc ipd ipe ipi ipn ipo ipp ipr ir- irc ird ire iri irn iro irp irr n-i ncc ncd nce nci ncn nco ncp ncr ndc ndd nde ndi ndn ndo ndp ndr ne- nec ned nee nei nen neo nep ner nic nid nie nii nin nio nip nir nnc nne nni nnn nno nnp no- noc nod noe noi non noo nop nor npc npd npe npi npn npo npp npr nrc nrd nre nri nrn nro nrp nrr o-i oc- occ ocd oci ocn oco ocp ocr odc odd ode odi odn odo odp odr oec oed oee oei oen oeo oep oer oic oid oie oii oin oio oip oir on- onc ond one oni onn ono onp onr oo- ooc ood ooi oon ooo oop oor op- opc opd ope opi opn opo opp opr or- orc ord ore ori orn oro orp orr p-p pcc pcd pce pci pcn pco pcp pcr pdc pdd pde pdi pdn pdo pdp pdr pec ped pee pei pen peo pep per pic pid pie pii pin pio pip pir pn- pnc pnd pne pni pnn pno pnp pnr poc pod poe poi pon poo pop por ppc ppd ppe ppi ppn ppo ppp ppr prc prd pre pri prn pro prp prr rcc rcd rce rci rcn rco rcp rcr rdc rdd rde rdi rdn rdo rdp rdr re- rec red ree rei ren reo rep rer ric rid rie rii rin rio rip rir rnc rnd rni rnn rno rnp rnr roc rod roe roi ron roo rop ror rpc rpd rpe rpi rpn rpo rpp rpr rrc rrd rri rrn rrp rrr