-er -ic c-- ccc ccd cce cci ccr ccs cct ccu ccv cdc cdd cde cdi cdr cds cdt cdu cdv ce- cec ced cee cei cer ces cet ceu cev ci- cic cid cie cii cir cis cit ciu civ crc crd cre cri crr crs crt cru crv csc csd cse csi csr css cst csu csv ctc ctd cte cti ctr cts ctt ctu ctv cuc cud cue cui cur cus cut cuu cuv cvc cvd cve cvi cvr cvs cvt cvu cvv dcc dcd dce dci dcr dcs dct dcu dcv ddc ddd dde ddi ddr dds ddt ddu de- dec ded dee dei der des det deu dev di- dic did die dii dir dis dit diu div drc drd dre dri drr drs drt dru drv dsc dsd dse dsi dsr dss dst dsu dsv dtc dtd dte dti dtr dts dtt dtu dtv duc dud due dui dur dus dut duv dvc dvd dve dvi dvr dvs dvt dvu ec- ecc ecd ece eci ecr ecs ect ecu ecv ed- edc edd ede edi edr eds edt edu eec eed eee eer ees eet eev eic eid eie eii eir eis eit eiu eiv erc erd ere eri err ers ert eru erv es- esc esd ese esi esr ess est esu esv etc etd ete eti etr ets ett etu etv eu- euc eud eue eui eur eus eut euv evc evd eve evi evr evs evt evv i-d i-v icc icd ice ici icr ics ict icu icv idc idd ide idi idr ids idt idu idv ie- iec ied iee iei ier ies iet iev iic iid iie iii iir iis iit iiu ir- irc ird ire iri irr irs irt iru irv is- isc isd ise isi isr iss ist isu isv itc itd ite iti its itt itu itv iu- iuc iud iue iui iur ius iut ivc ivd ive ivi ivr ivs ivt ivu ivv rcc rcd rce rci rcr rcs rct rcu rcv rdc rdd rde rdi rdr rds rdt rdu rdv re- rec red ree rei rer res ret reu rev ric rid rie rii rir ris rit riv rrc rrd rri rrr rrs rrt rru rsc rsd rse rsi rsr rss rst rsu rsv rtc rtd rte rti rtr rts rtt rtu rtv ruc rud rue rui rur rus rut ruu ruv rvc rvd rve rvi rvr rvs rvt rvu rvv scc scd sce sci scr scs sct scu scv sdc sdd sde sdi sdr sds sdt sdu sdv se- sec sed see sei ser ses set seu sev sic sid sie sii sir sis sit siu siv sr- src srd sre sri srr srs srt srv ss- ssc ssd sse ssi ssr sss sst ssu ssv stc std ste sti str sts stt stu stv suc sud sue sui sur sus sut suu suv svc svd sve svi svr svs svt svu svv tcc tcd tce tci tcr tcs tct tcu tcv tdc tdd tde tdi tdr tds tdt tdu tdv te- tec ted tee tei ter tes tet teu tev tic tid tie tii tir tis tit tiu tiv trc trd tre tri trr trs trt tru trv tsc tsd tse tsi tsr tss tst tsu tsv ttc ttd tte tti ttr tts ttt ttu ttv tuc tud tue tui tur tus tut tuu tuv tvc tvd tve tvi tvr tvs tvt tvu ucc ucd uce uci ucr ucs uct ucu ucv udc udd ude udi udr uds udt udu udv uec ued uee uei uer ues uet uic uid uie uii uir uis uit uiu ur- urc urd ure uri urr urs urt uru usc usd use usi usr uss ust usu usv utc utd ute uti utr uts utt utu utv uuc uue uur uus uut uuu uvc uve uvs uvu uvv v-e vcc vcd vce vci vcr vcs vct vcu vdc vdd vde vdi vdr vds vdt vdu vdv vec ved vee vei ver ves vet veu vi- vic vid vie vii vir vis vit viu viv vrc vrd vre vri vrr vrs vrt vru vsc vsd vse vsi vsr vss vst vsu vsv vtc vte vti vtr vts vtt vtu vtv vue vur vus vut vuv vvc vvi vvr vvs vvt vvv