-er -ic c-- ccc ccd cce ccf cci ccn cco ccr cdc cdd cde cdf cdi cdn cdo cdr ce- cec ced cee cef cei cen ceo cer cfc cfd cfe cff cfi cfn cfo cfr ci- cic cid cie cif cii cin cio cir cn- cnc cnd cne cnf cni cnn cno cnr co- coc cod coe cof coi con coo cor crc crd cre crf cri crn cro crr dcc dcd dce dcf dci dcn dco dcr ddc ddd dde ddf ddi ddn ddo ddr de- dec ded dee def dei den deo der dfc dfd dfe dff dfi dfn dfo dfr di- dic did die dif dii din dio dir dnc dnd dne dnf dni dnn dno dnr doc dod doe dof doi don doo dor drc drd dre dri drn dro drr ec- ecc ecd ece ecf eci ecn eco ecr ed- edc edd ede edf edi edn edo edr eec eed eee eef een eeo eer ef- efc efd efe eff efi efo efr eic eid eie eif eii ein eio eir en- enc end ene enf eni enn eno enr eo- eoc eod eoe eof eoi eon eoo eor erc erd ere erf eri ern ero err fcc fcd fce fcf fci fcn fco fcr fdc fdd fde fdf fdi fdn fdo fdr fec fed fee fef fei fen feo fer ffc ffd ffe fff ffi ffn ffo ffr fic fid fie fif fii fin fir fnc fnd fne fnf fni fnn fnr foc foe fof foi fon foo for frc frd fre frf fri frn fro frr i-d i-f icc icd ice icf ici icn ico icr idc idd ide idf idi idn ido idr ie- iec ied iee ief iei ien ier ifc ifd ife iff ifi ifn ifo ifr iic iid iie iif iii iin iio iir in- inc ind ine inf ini inn ino inr io- ioc iod ioe iof ioi ion ioo ior ir- irc ird ire irf iri irn iro irr n-i ncc ncd nce ncf nci ncn nco ncr ndc ndd nde ndf ndi ndn ndo ndr ne- nec ned nee nef nei nen neo ner nfc nfd nfe nff nfi nfn nfo nfr nic nid nie nif nii nin nio nir nnc nne nnf nni nnn nno no- noc nod noe nof noi non noo nor nrc nrd nre nrf nri nrn nro nrr o-i oc- occ ocd ocf oci ocn oco ocr odc odd ode odf odi odn odo odr oec oed oee oef oei oen oeo oer of- ofc ofd ofe off ofi ofn ofo ofr oic oid oie oif oii oin oio oir on- onc ond one onf oni onn ono onr oo- ooc ood oof ooi oon ooo oor or- orc ord ore orf ori orn oro orr rcc rcd rce rcf rci rcn rco rcr rdc rdd rde rdf rdi rdn rdo rdr re- rec red ree ref rei ren reo rer rfc rfd rfe rff rfi rfn rfo rfr ric rid rie rif rii rin rio rir rnc rnd rni rnn rno rnr roc rod roe rof roi ron roo ror rrc rrd rrf rri rrn rrr