-er -ic c-- ccc ccd cce cci ccr cct ccu cdc cdd cde cdi cdq cdr cdt cdu ce- cec ced cee cei ceq cer cet ceu ci- cic cid cie cii ciq cir cit ciu cqc cqd cqi cqt crc crd cre cri crq crr crt cru ctc ctd cte cti ctq ctr ctt ctu cuc cud cue cui cuq cur cut cuu dcc dcd dce dci dcr dct dcu ddc ddd dde ddi ddq ddr ddt ddu de- dec ded dee dei deq der det deu di- dic did die dii diq dir dit diu dqe drc drd dre dri drq drr drt dru dtc dtd dte dti dtr dtt dtu duc dud due dui dur dut ec- ecc ecd ece eci ecq ecr ect ecu ed- edc edd ede edi edr edt edu eec eed eee eer eet eic eid eie eii eir eit eiu eqe eqq eqt equ erc erd ere eri erq err ert eru etc etd ete eti etr ett etu eu- euc eud eue eui eur eut i-d icc icd ice ici icq icr ict icu idc idd ide idi idq idr idt idu ie- iec ied iee iei ier iet iic iid iie iii iir iit iiu iqc iqd iqe iqt iqu ir- irc ird ire iri irq irr irt iru itc itd ite iti itq itt itu iu- iuc iud iue iui iur iut qcc qcd qci qct qdr qdt qec qed qee qet qic qid qie qir qit qiu qqq qqu qrc qre qri qrt qru qtc qtd qti qtq qtr qu- qud que qui qur qut rcc rcd rce rci rcr rct rcu rdc rdd rde rdi rdr rdt rdu re- rec red ree rei req rer ret reu ric rid rie rii riq rir rit rqc rrc rrd rri rrq rrr rrt rru rtc rtd rte rti rtq rtr rtt rtu ruc rud rue rui rur rut ruu tcc tcd tce tci tcr tct tcu tdc tdd tde tdi tdr tdt tdu te- tec ted tee tei teq ter tet teu tic tid tie tii tir tit tiu trc trd tre tri trq trr trt tru ttc ttd tte tti ttr ttt ttu tuc tud tue tui tur tut tuu ucc ucd uce uci ucr uct ucu udc udd ude udi udr udt udu uec ued uee uei uer uet uic uid uie uii uiq uir uit uiu ur- urc urd ure uri urr urt uru utc utd ute uti utr utt utu uuc uue uur uut uuu