-ic c-- ccc ccd cci ccp ccr cdc cdd cdi cdp cdr cdy ci- cic cid cii cip cir cpc cpd cpi cpp cpr crc crd cri crp crr cry cyc cyd cyp cyr dcc dcd dci dcp dcr ddc ddd ddi ddp ddr ddy di- dic did dii dip dir diy dpc dpd dpi dpp dpr drc drd dri drp drr dry dy- dyc dyd dyp dyr dyy i-d icc icd ici icp icr icy idc idd idi idp idr idy iic iid iii iip iir ipc ipd ipi ipp ipr ipy ir- irc ird iri irp irr iry iyc iyr iyy p-p pcc pcd pci pcp pcr pdc pdd pdi pdp pdr pic pid pii pip pir ppc ppd ppi ppp ppr prc prd pri prp prr pry py- pyc pyd pyr rcc rcd rci rcp rcr rdc rdd rdi rdp rdr rdy ric rid rii rip rir riy rpc rpd rpi rpp rpr rrc rrd rri rrp rrr ry- ryc ryd ryr ryy ycc ycd yci ycp ycy ydy yid yii yip yir ypd yrc yrp yyc yyy