-er -ic c-- ccc ccd cce cci ccn ccr ccu cdc cdd cde cdi cdn cdr cdu ce- cec ced cee cei cen cer ceu ci- cic cid cie cii cin cir ciu cn- cnc cnd cne cni cnn cnr cnu crc crd cre cri crn crr cru cuc cud cue cui cun cur cuu dcc dcd dce dci dcn dcr dcu ddc ddd dde ddi ddn ddr ddu de- dec ded dee dei den der deu di- dic did die dii din dir diu dnc dnd dne dni dnn dnr drc drd dre dri drn drr dru duc dud due dui dun dur ec- ecc ecd ece eci ecn ecr ecu ed- edc edd ede edi edn edr edu eec eed eee een eer eic eid eie eii ein eir eiu en- enc end ene eni enn enr enu erc erd ere eri ern err eru eu- euc eud eue eui eun eur i-d icc icd ice ici icn icr icu idc idd ide idi idn idr idu ie- iec ied iee iei ien ier iic iid iie iii iin iir iiu in- inc ind ine ini inn inr inu ir- irc ird ire iri irn irr iru iu- iuc iud iue iui iur n-i ncc ncd nce nci ncn ncr ncu ndc ndd nde ndi ndn ndr ndu ne- nec ned nee nei nen ner neu nic nid nie nii nin nir niu nnc nne nni nnn nnu nrc nrd nre nri nrn nrr nru nuc nud nue nui nun nur nuu rcc rcd rce rci rcn rcr rcu rdc rdd rde rdi rdn rdr rdu re- rec red ree rei ren rer reu ric rid rie rii rin rir rnc rnd rni rnn rnr rnu rrc rrd rri rrn rrr rru ruc rud rue rui run rur ruu ucc ucd uce uci ucn ucr ucu udc udd ude udi udn udr udu uec ued uee uei uen uer uic uid uie uii uin uir uiu un- unc und une uni unn unr unu ur- urc urd ure uri urn urr uru uuc uue uun uur uuu