-ic c-- ccc ccd cci ccn ccr cdc cdd cdi cdn cdr ci- cic cid cii cin cir cn- cnc cnd cni cnn cnr crc crd cri crn crr dcc dcd dci dcn dcr ddc ddd ddi ddn ddr di- dic did dii din dir dnc dnd dni dnn dnr drc drd dri drn drr i-d icc icd ici icn icr idc idd idi idn idr iic iid iii iin iir in- inc ind ini inn inr ir- irc ird iri irn irr n-i ncc ncd nci ncn ncr ndc ndd ndi ndn ndr nic nid nii nin nir nnc nni nnn nrc nrd nri nrn nrr rcc rcd rci rcn rcr rdc rdd rdi rdn rdr ric rid rii rin rir rnc rnd rni rnn rnr rrc rrd rri rrn rrr