-er -ic c-- ccc ccd cce cci ccr ccu ccv cdc cdd cde cdi cdr cdu cdv ce- cec ced cee cei cer ceu cev ci- cic cid cie cii cir ciu civ crc crd cre cri crr cru crv cuc cud cue cui cur cuu cuv cvc cvd cve cvi cvr cvu cvv dcc dcd dce dci dcr dcu dcv ddc ddd dde ddi ddr ddu de- dec ded dee dei der deu dev di- dic did die dii dir diu div drc drd dre dri drr dru drv duc dud due dui dur duv dvc dvd dve dvi dvr dvu ec- ecc ecd ece eci ecr ecu ecv ed- edc edd ede edi edr edu eec eed eee eer eev eic eid eie eii eir eiu eiv erc erd ere eri err eru erv eu- euc eud eue eui eur euv evc evd eve evi evr evv i-d i-v icc icd ice ici icr icu icv idc idd ide idi idr idu idv ie- iec ied iee iei ier iev iic iid iie iii iir iiu ir- irc ird ire iri irr iru irv iu- iuc iud iue iui iur ivc ivd ive ivi ivr ivu ivv rcc rcd rce rci rcr rcu rcv rdc rdd rde rdi rdr rdu rdv re- rec red ree rei rer reu rev ric rid rie rii rir riv rrc rrd rri rrr rru ruc rud rue rui rur ruu ruv rvc rvd rve rvi rvr rvu rvv ucc ucd uce uci ucr ucu ucv udc udd ude udi udr udu udv uec ued uee uei uer uic uid uie uii uir uiu ur- urc urd ure uri urr uru uuc uue uur uuu uvc uve uvu uvv v-e vcc vcd vce vci vcr vcu vdc vdd vde vdi vdr vdu vdv vec ved vee vei ver veu vi- vic vid vie vii vir viu viv vrc vrd vre vri vrr vru vue vur vuv vvc vvi vvr vvv