-er -ic c-- ccc ccd cce cci cco ccr cct ccu cdc cdd cde cdi cdo cdq cdr cdt cdu ce- cec ced cee cei ceo ceq cer cet ceu ci- cic cid cie cii cio ciq cir cit ciu co- coc cod coe coi coo coq cor cot cou cqc cqd cqi cqo cqt crc crd cre cri cro crq crr crt cru ctc ctd cte cti cto ctq ctr ctt ctu cuc cud cue cui cuo cuq cur cut cuu dcc dcd dce dci dco dcr dct dcu ddc ddd dde ddi ddo ddq ddr ddt ddu de- dec ded dee dei deo deq der det deu di- dic did die dii dio diq dir dit diu doc dod doe doi doo doq dor dot dou dqe drc drd dre dri dro drq drr drt dru dtc dtd dte dti dto dtr dtt dtu duc dud due dui duo dur dut ec- ecc ecd ece eci eco ecq 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 eoq eor eot eou eqe eqq eqt equ erc erd ere eri ero erq 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 icq icr ict icu idc idd ide idi ido idq 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 iqc iqd iqe iqt iqu ir- irc ird ire iri iro irq irr irt iru itc itd ite iti ito itq 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 oqo 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 qcc qcd qci qco qct qdr qdt qec qed qee qeo qet qic qid qie qio qir qit qiu qoi qoo qor qqq qqu qrc qre qri qrt qru qtc qtd qti qto qtq qtr qu- qud que qui quo qur qut rcc rcd rce rci rco rcr rct rcu rdc rdd rde rdi rdo rdr rdt rdu re- rec red ree rei reo req rer ret reu ric rid rie rii rio riq rir rit roc rod roe roi roo ror rot rou rqc rrc rrd rri rrq rrr rrt rru rtc rtd rte rti rto rtq 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 teq ter tet teu tic tid tie tii tio tir tit tiu to- toc tod toe toi too toq tor tot tou tqo trc trd tre tri tro trq 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 uiq 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