-ic c-- ccc ccd cci cck ccr cdc cdd cdi cdk cdr ci- cic cid cii cik cir ckc ckd cki crc crd cri crk crr dcc dcd dci dck dcr ddc ddd ddi ddk ddr di- dic did dii dik dir dkc dki dkk dkr drc drd dri drk drr i-d icc icd ici ick icr idc idd idi idk idr iic iid iii iir ikc iki ikk ikr ir- irc ird iri irk irr kcc kcd kci kck kcr kdc kdk kdr kic kid kii kik kir kkc kki kkk kkr krc krd kri krk krr rcc rcd rci rcr rdc rdd rdi rdr ric rid rii rik rir rkc rkk rrc rrd rri rrk rrr