-er -ic c-- ccc ccd cce cci ccn cco ccr cdc cdd cde cdi cdn cdo cdr ce- cec ced cee cei cen ceo cer ci- cic cid cie cii cin cio cir cn- cnc cnd cne cni cnn cno cnr co- coc cod coe coi con coo cor crc crd cre cri crn cro crr dcc dcd dce dci dcn dco dcr ddc ddd dde ddi ddn ddo ddr de- dec ded dee dei den deo der di- dic did die dii din dio dir dnc dnd dne dni dnn dno dnr doc dod doe doi don doo dor drc drd dre dri drn dro drr ec- ecc ecd ece eci ecn eco ecr ed- edc edd ede edi edn edo edr eec eed eee een eeo eer eic eid eie eii ein eio eir en- enc end ene eni enn eno enr eo- eoc eod eoe eoi eon eoo eor erc erd ere eri ern ero err i-d icc icd ice ici icn ico icr idc idd ide idi idn ido idr ie- iec ied iee iei ien ier iic iid iie iii iin iio iir in- inc ind ine ini inn ino inr io- ioc iod ioe ioi ion ioo ior ir- irc ird ire iri irn iro irr n-i ncc ncd nce nci ncn nco ncr ndc ndd nde ndi ndn ndo ndr ne- nec ned nee nei nen neo ner nic nid nie nii nin nio nir nnc nne nni nnn nno no- noc nod noe noi non noo nor nrc nrd nre nri nrn nro nrr o-i oc- occ ocd oci ocn oco ocr odc odd ode odi odn odo odr oec oed oee oei oen oeo oer oic oid oie oii oin oio oir on- onc ond one oni onn ono onr oo- ooc ood ooi oon ooo oor or- orc ord ore ori orn oro orr rcc rcd rce rci rcn rco rcr rdc rdd rde rdi rdn rdo rdr re- rec red ree rei ren reo rer ric rid rie rii rin rio rir rnc rnd rni rnn rno rnr roc rod roe roi ron roo ror rrc rrd rri rrn rrr