-er -ic c-- ccc ccd cce cci ccn cco ccr ccu cdc cdd cde cdi cdn cdo cdr cdu ce- cec ced cee cei cen ceo cer ceu ci- cic cid cie cii cin cio cir ciu cn- cnc cnd cne cni cnn cno cnr cnu co- coc cod coe coi con coo cor cou crc crd cre cri crn cro crr cru cuc cud cue cui cun cuo cur cuu dcc dcd dce dci dcn dco dcr dcu ddc ddd dde ddi ddn ddo ddr ddu de- dec ded dee dei den deo der deu di- dic did die dii din dio dir diu dnc dnd dne dni dnn dno dnr doc dod doe doi don doo dor dou drc drd dre dri drn dro drr dru duc dud due dui dun duo dur ec- ecc ecd ece eci ecn eco ecr ecu ed- edc edd ede edi edn edo edr edu eec eed eee een eeo eer eic eid eie eii ein eio eir eiu en- enc end ene eni enn eno enr enu eo- eoc eod eoe eoi eon eoo eor eou erc erd ere eri ern ero err eru eu- euc eud eue eui eun eur i-d icc icd ice ici icn ico icr icu idc idd ide idi idn ido idr idu ie- iec ied iee iei ien ier iic iid iie iii iin iio iir iiu in- inc ind ine ini inn ino inr inu io- ioc iod ioe ioi ion ioo ior iou ir- irc ird ire iri irn iro irr iru iu- iuc iud iue iui iur n-i ncc ncd nce nci ncn nco ncr ncu ndc ndd nde ndi ndn ndo ndr ndu ne- nec ned nee nei nen neo ner neu nic nid nie nii nin nio nir niu nnc nne nni nnn nno nnu no- noc nod noe noi non noo nor nou nrc nrd nre nri nrn nro nrr nru nuc nud nue nui nun nuo nur nuu o-i oc- occ ocd oci ocn oco ocr ocu odc odd ode odi odn odo odr odu oec oed oee oei oen oeo oer oic oid oie oii oin oio oir oiu on- onc ond one oni onn ono onr onu oo- ooc ood ooi oon ooo oor or- orc ord ore ori orn oro orr oru ou- ouc oud oue oui oun ouo our rcc rcd rce rci rcn rco rcr rcu rdc rdd rde rdi rdn rdo rdr rdu re- rec red ree rei ren reo rer reu ric rid rie rii rin rio rir rnc rnd rni rnn rno rnr rnu roc rod roe roi ron roo ror rou rrc rrd rri rrn rrr rru ruc rud rue rui run ruo rur ruu ucc ucd uce uci ucn uco ucr ucu udc udd ude udi udn udo udr udu uec ued uee uei uen uer uic uid uie uii uin uio uir uiu un- unc und une uni unn uno unr unu uoc uod uoe uon uoo uor ur- urc urd ure uri urn uro urr uru uuc uue uun uur uuu