-er -ic c-- ccc ccd cce cci cco ccr cct ccu cdc cdd cde cdi cdo cdr cdt cdu ce- cec ced cee cei ceo cer cet ceu ci- cic cid cie cii cio cir cit ciu co- coc cod coe coi coo cor cot cou crc crd cre cri cro crr crt cru ctc ctd cte cti cto ctr ctt ctu cuc cud cue cui cuo cur cut cuu dcc dcd dce dci dco dcr dct dcu ddc ddd dde ddi ddo ddr ddt ddu de- dec ded dee dei deo der det deu di- dic did die dii dio dir dit diu doc dod doe doi doo dor dot dou drc drd dre dri dro drr drt dru dtc dtd dte dti dto dtr dtt dtu duc dud due dui duo dur dut ec- ecc ecd ece eci eco ecr ect ecu ed- edc edd ede edi edo edr edt edu eec eed eee eeo eer eet eic eid eie eii eio eir eit eiu eo- eoc eod eoe eoi eoo eor eot eou erc erd ere eri ero err ert eru etc etd ete eti eto etr ett etu eu- euc eud eue eui eur eut i-d icc icd ice ici ico icr ict icu idc idd ide idi ido idr idt idu ie- iec ied iee iei ier iet iic iid iie iii iio iir iit iiu io- ioc iod ioe ioi ioo ior iot iou ir- irc ird ire iri iro irr irt iru itc itd ite iti ito itt itu iu- iuc iud iue iui iur iut o-i oc- occ ocd oci oco ocr oct ocu odc odd ode odi odo odr odt odu oec oed oee oei oeo oer oet oic oid oie oii oio oir oit oiu oo- ooc ood ooi ooo oor oot or- orc ord ore ori oro orr ort oru ot- otc otd ote oti oto otr ott otu ou- ouc oud oue oui ouo our out rcc rcd rce rci rco rcr rct rcu rdc rdd rde rdi rdo rdr rdt rdu re- rec red ree rei reo rer ret reu ric rid rie rii rio rir rit roc rod roe roi roo ror rot rou rrc rrd rri rrr rrt rru rtc rtd rte rti rto rtr rtt rtu ruc rud rue rui ruo rur rut ruu tcc tcd tce tci tco tcr tct tcu tdc tdd tde tdi tdo tdr tdt tdu te- tec ted tee tei teo ter tet teu tic tid tie tii tio tir tit tiu to- toc tod toe toi too tor tot tou trc trd tre tri tro trr trt tru ttc ttd tte tti tto ttr ttt ttu tuc tud tue tui tuo tur tut tuu ucc ucd uce uci uco ucr uct ucu udc udd ude udi udo udr udt udu uec ued uee uei uer uet uic uid uie uii uio uir uit uiu uoc uod uoe uoo uor uot ur- urc urd ure uri uro urr urt uru utc utd ute uti uto utr utt utu uuc uue uur uut uuu