-er -ic c-- ccc ccd cce ccf cci cco ccr ccu cdc cdd cde cdf cdi cdo cdr cdu ce- cec ced cee cef cei ceo cer ceu cfc cfd cfe cff cfi cfo cfr cfu ci- cic cid cie cif cii cio cir ciu co- coc cod coe cof coi coo cor cou crc crd cre crf cri cro crr cru cuc cud cue cuf cui cuo cur cuu dcc dcd dce dcf dci dco dcr dcu ddc ddd dde ddf ddi ddo ddr ddu de- dec ded dee def dei deo der deu dfc dfd dfe dff dfi dfo dfr dfu di- dic did die dif dii dio dir diu doc dod doe dof doi doo dor dou drc drd dre dri dro drr dru duc dud due duf dui duo dur ec- ecc ecd ece ecf eci eco ecr ecu ed- edc edd ede edf edi edo edr edu eec eed eee eef eeo eer ef- efc efd efe eff efi efo efr eic eid eie eif eii eio eir eiu eo- eoc eod eoe eof eoi eoo eor eou erc erd ere erf eri ero err eru eu- euc eud eue euf eui eur fcc fcd fce fcf fci fco fcr fcu fdc fdd fde fdf fdi fdo fdr fdu fec fed fee fef fei feo fer feu ffc ffd ffe fff ffi ffo ffr ffu fic fid fie fif fii fir fiu foc foe fof foi foo for fou frc frd fre frf fri fro frr fru fud fue fuf fui fuo fur fuu i-d i-f icc icd ice icf ici ico icr icu idc idd ide idf idi ido idr idu ie- iec ied iee ief iei ier ifc ifd ife iff ifi ifo ifr ifu iic iid iie iif iii iio iir iiu io- ioc iod ioe iof ioi ioo ior iou ir- irc ird ire irf iri iro irr iru iu- iuc iud iue iui iur o-i oc- occ ocd ocf oci oco ocr ocu odc odd ode odf odi odo odr odu oec oed oee oef oei oeo oer of- ofc ofd ofe off ofi ofo ofr ofu oic oid oie oif oii oio oir oiu oo- ooc ood oof ooi ooo oor or- orc ord ore orf ori oro orr oru ou- ouc oud oue ouf oui ouo our rcc rcd rce rcf rci rco rcr rcu rdc rdd rde rdf rdi rdo rdr rdu re- rec red ree ref rei reo rer reu rfc rfd rfe rff rfi rfo rfr rfu ric rid rie rif rii rio rir roc rod roe rof roi roo ror rou rrc rrd rrf rri rrr rru ruc rud rue ruf rui ruo rur ruu ucc ucd uce ucf uci uco ucr ucu udc udd ude udf udi udo udr udu uec ued uee uef uei uer ufc ufd ufe uff ufi ufo ufr ufu uic uid uie uif uii uio uir uiu uoc uod uoe uoo uor ur- urc urd ure urf uri uro urr uru uuc uue uur uuu