ddd ddi ddk ddr dds di- did dii dik dir dis dki dkk dkr dks drd dri drk drr drs dsd dsi dsk dsr dss i-d idd idi idk idr ids iid iii iir iis iki ikk ikr iks ir- ird iri irk irr irs is- isd isi isk isr iss kdk kdr kds kid kii kik kir kis kki kkk kkr kks krd kri krk krr krs ksd ksi ksk ksr kss rdd rdi rdr rds rid rii rik rir ris rkk rks rrd rri rrk rrr rrs rsd rsi rsk rsr rss sdd sdi sdk sdr sds sid sii sik sir sis sk- skd ski skk skr sks sr- srd sri srk srr srs ss- ssd ssi ssk ssr sss