-er -ic c-- ccc ccd cce ccf cci ccr cct ccu cdc cdd cde cdf cdi cdr cdt cdu ce- cec ced cee cef cei cer cet ceu cfc cfd cfe cff cfi cfr cft cfu ci- cic cid cie cif cii cir cit ciu crc crd cre crf cri crr crt cru ctc ctd cte ctf cti ctr ctt ctu cuc cud cue cuf cui cur cut cuu dcc dcd dce dcf dci dcr dct dcu ddc ddd dde ddf ddi ddr ddt ddu de- dec ded dee def dei der det deu dfc dfd dfe dff dfi dfr dft dfu di- dic did die dif dii dir dit diu drc drd dre dri drr drt dru dtc dtd dte dtf dti dtr dtt dtu duc dud due duf dui dur dut ec- ecc ecd ece ecf eci ecr ect ecu ed- edc edd ede edf edi edr edt edu eec eed eee eef eer eet ef- efc efd efe eff efi efr eft eic eid eie eif eii eir eit eiu erc erd ere erf eri err ert eru etc etd ete etf eti etr ett etu eu- euc eud eue euf eui eur eut fcc fcd fce fcf fci fcr fct fcu fdc fdd fde fdf fdi fdr fdt fdu fec fed fee fef fei fer fet feu ffc ffd ffe fff ffi ffr fft ffu fic fid fie fif fii fir fit fiu frc frd fre frf fri frr frt fru ftc ftd fte ftf fti ftr ftt ftu fud fue fuf fui fur fut fuu i-d i-f icc icd ice icf ici icr ict icu idc idd ide idf idi idr idt idu ie- iec ied iee ief iei ier iet ifc ifd ife iff ifi ifr ift ifu iic iid iie iif iii iir iit iiu ir- irc ird ire irf iri irr irt iru itc itd ite itf iti itt itu iu- iuc iud iue iui iur iut rcc rcd rce rcf rci rcr rct rcu rdc rdd rde rdf rdi rdr rdt rdu re- rec red ree ref rei rer ret reu rfc rfd rfe rff rfi rfr rft rfu ric rid rie rif rii rir rit rrc rrd rrf rri rrr rrt rru rtc rtd rte rtf rti rtr rtt rtu ruc rud rue ruf rui rur rut ruu tcc tcd tce tcf tci tcr tct tcu tdc tdd tde tdf tdi tdr tdt tdu te- tec ted tee tef tei ter tet teu tfc tfd tfe tff tfi tfr tft tfu tic tid tie tif tii tir tit tiu trc trd tre trf tri trr trt tru ttc ttd tte ttf tti ttr ttt ttu tuc tud tue tuf tui tur tut tuu ucc ucd uce ucf uci ucr uct ucu udc udd ude udf udi udr udt udu uec ued uee uef uei uer uet ufc ufd ufe uff ufi ufr uft ufu uic uid uie uif uii uir uit uiu ur- urc urd ure urf uri urr urt uru utc utd ute utf uti utr utt utu uuc uue uur uut uuu