ddd ddi ddm ddr dds di- did dii dim dir dis dmd dmi dmm dmr dms drd dri drm drr drs dsd dsi dsm dsr dss i-d idd idi idm idr ids iid iii iim iir iis im- imd imi imm ims ir- ird iri irm irr irs is- isd isi ism isr iss m-r mdd mdi mdm mdr mds mi- mid mii mim mir mis mmd mmi mmm mmr mms mrd mri mrm mrr mrs msd msi msm msr mss rdd rdi rdm rdr rds rid rii rim rir ris rmd rmi rmm rmr rms rrd rri rrm rrr rrs rsd rsi rsm rsr rss sdd sdi sdm sdr sds sid sii sim sir sis smd smi smm smr sms sr- srd sri srm srr srs ss- ssd ssi ssm ssr sss