-er -ic c-- ccc ccd cce cci cco ccr cct ccv cdc cdd cde cdi cdo cdr cdt cdv ce- cec ced cee cei ceo cer cet cev ci- cic cid cie cii cio cir cit civ co- coc cod coe coi coo cor cot cov crc crd cre cri cro crr crt crv ctc ctd cte cti cto ctr ctt ctv cvc cvd cve cvi cvo cvr cvt cvv dcc dcd dce dci dco dcr dct dcv ddc ddd dde ddi ddo ddr ddt de- dec ded dee dei deo der det dev di- dic did die dii dio dir dit div doc dod doe doi doo dor dot dov drc drd dre dri dro drr drt drv dtc dtd dte dti dto dtr dtt dtv dvc dvd dve dvi dvr dvt ec- ecc ecd ece eci eco ecr ect ecv ed- edc edd ede edi edo edr edt eec eed eee eeo eer eet eev eic eid eie eii eio eir eit eiv eo- eoc eod eoe eoi eoo eor eot erc erd ere eri ero err ert erv etc etd ete eti eto etr ett etv evc evd eve evi evo evr evt evv i-d i-v icc icd ice ici ico icr ict icv idc idd ide idi ido idr idt idv ie- iec ied iee iei ier iet iev iic iid iie iii iio iir iit io- ioc iod ioe ioi ioo ior iot iov ir- irc ird ire iri iro irr irt irv itc itd ite iti ito itt itv ivc ivd ive ivi ivo ivr ivt ivv o-i oc- occ ocd oci oco ocr oct ocv odc odd ode odi odo odr odt odv oec oed oee oei oeo oer oet oic oid oie oii oio oir oit oiv oo- ooc ood ooi ooo oor oot oov or- orc ord ore ori oro orr ort orv ot- otc otd ote oti oto otr ott otv ov- ovc ovd ove ovi ovo ovv rcc rcd rce rci rco rcr rct rcv rdc rdd rde rdi rdo rdr rdt rdv re- rec red ree rei reo rer ret rev ric rid rie rii rio rir rit riv roc rod roe roi roo ror rot rov rrc rrd rri rrr rrt rtc rtd rte rti rto rtr rtt rtv rvc rvd rve rvi rvo rvr rvt rvv tcc tcd tce tci tco tcr tct tcv tdc tdd tde tdi tdo tdr tdt tdv te- tec ted tee tei teo ter tet tev tic tid tie tii tio tir tit tiv to- toc tod toe toi too tor tot tov trc trd tre tri tro trr trt trv ttc ttd tte tti tto ttr ttt ttv tvc tvd tve tvi tvo tvr tvt v-e vcc vcd vce vci vco vcr vct vdc vdd vde vdi vdo vdr vdt vdv vec ved vee vei veo ver vet vi- vic vid vie vii vio vir vit viv voc vod voe voi voo vor vot vov vrc vrd vre vri vrr vrt vtc vte vti vto vtr vtt vtv vvc vvi vvo vvr vvt vvv