-ic c-- ccc ccd cch cci ccr ccs cdc cdd cdh cdi cdr cds ch- chc chd chh chi chr chs ci- cic cid cih cii cir cis crc crd crh cri crr crs csc csd csh csi csr css dcc dcd dci dcr dcs ddc ddd ddh ddi ddr dds dh- dhc dhd dhh dhi dhr dhs di- dic did dih dii dir dis drc drd dri drr drs dsc dsd dsh dsi dsr dss h-i hcc hcd hch hci hcr hcs hdc hdd hdh hdi hdr hds hhc hhd hhh hhi hhr hhs hic hid hih hii hir his hr- hrc hrd hrh hri hrr hrs hsc hsd hsh hsi hsr hss i-d icc icd ich ici icr ics idc idd idh idi idr ids ihc ihd ihh ihi ihr ihs iic iid iih iii iir iis ir- irc ird iri irr irs is- isc isd ish isi isr iss rcc rcd rch rci rcr rcs rdc rdd rdh rdi rdr rds rh- rhc rhd rhh rhi rhr rhs ric rid rih rii rir ris rrc rrd rrh rri rrr rrs rsc rsd rsh rsi rsr rss scc scd sch sci scr scs sdc sdd sdh sdi sdr sds sh- shc shd shh shi shr shs sic sid sih sii sir sis sr- src srd srh sri srr srs ss- ssc ssd ssh ssi ssr sss