-ic c-- ccc ccd cci cco ccs ccv cdc cdd cdi cdo cds cdv ci- cic cid cii cio cis civ co- coc cod coi coo cos cov csc csd csi cso css csv cvc cvd cvi cvo cvs cvv dcc dcd dci dco dcs dcv ddc ddd ddi ddo dds di- dic did dii dio dis div doc dod doi doo dos dov dsc dsd dsi dso dss dsv dvc dvd dvi dvs i-d i-v icc icd ici ico ics icv idc idd idi ido ids idv iic iid iii iio iis io- ioc iod ioi ioo ios iov is- isc isd isi iso iss isv ivc ivd ivi ivo ivs ivv o-i oc- occ ocd oci oco ocs ocv odc odd odi odo ods odv oic oid oii oio ois oiv oo- ooc ood ooi ooo oos oov os- osc osd osi oso oss osv ov- ovc ovd ovi ovo ovs ovv scc scd sci sco scs scv sdc sdd sdi sdo sds sdv sic sid sii sio sis siv soc sod soi soo sos sov ss- ssc ssd ssi sso sss ssv svc svd svi svo svs svv vcc vcd vci vco vcs vdc vdd vdi vdo vds vdv vi- vic vid vii vio vis viv voc vod voi voo vos vov vsc vsd vsi vso vss vsv vvc vvi vvo vvs vvv