-ic c-- ccc ccd cci ccp ccr ccs cdc cdd cdi cdp cdr cds cdy ci- cic cid cii cip cir cis cpc cpd cpi cpp cpr cps crc crd cri crp crr crs cry csc csd csi csp csr css csy cyc cyd cyp cyr cys dcc dcd dci dcp dcr dcs ddc ddd ddi ddp ddr dds ddy di- dic did dii dip dir dis diy dpc dpd dpi dpp dpr dps drc drd dri drp drr drs dry dsc dsd dsi dsp dsr dss dsy dy- dyc dyd dyp dyr dys dyy i-d icc icd ici icp icr ics icy idc idd idi idp idr ids idy iic iid iii iip iir iis ipc ipd ipi ipp ipr ips ipy ir- irc ird iri irp irr irs iry is- isc isd isi isp isr iss isy iyc iyr iys iyy p-p pcc pcd pci pcp pcr pcs pdc pdd pdi pdp pdr pds pic pid pii pip pir pis ppc ppd ppi ppp ppr pps prc prd pri prp prr prs pry ps- psc psd psi psp psr pss psy py- pyc pyd pyr pys rcc rcd rci rcp rcr rcs rdc rdd rdi rdp rdr rds rdy ric rid rii rip rir ris riy rpc rpd rpi rpp rpr rps rrc rrd rri rrp rrr rrs rsc rsd rsi rsp rsr rss ry- ryc ryd ryr rys ryy scc scd sci scp scr scs sdc sdd sdi sdp sdr sds sdy sic sid sii sip sir sis spc spd spi spp spr sps spy sr- src srd sri srp srr srs sry ss- ssc ssd ssi ssp ssr sss sy- syc syd syi syp syr sys ycc ycd yci ycp ycs ycy yds ydy yid yii yip yir yis ypd yps yrc yrp yrs ysc ysi ysp ysr yss ysy yyc yys yyy