ddd ddi ddm ddo ddp ddr dds di- did dii dim dio dip dir dis dmd dmi dmm dmo dmp dmr dms dod doi dom doo dop dor dos dpd dpi dpm dpo dpp dpr dps drd dri drm dro drp drr drs dsd dsi dsm dso dsp dsr dss i-d idd idi idm ido idp idr ids iid iii iim iio iip iir iis im- imd imi imm imo imp ims io- iod ioi iom ioo iop ior ios ipd ipi ipm ipo ipp ipr ips ir- ird iri irm iro irp irr irs is- isd isi ism iso isp isr iss m-o m-r mdd mdi mdm mdo mdp mdr mds mi- mid mii mim mio mip mir mis mmd mmi mmm mmo mmp mmr mms mod moi mom moo mop mor mos mpd mpi mpm mpo mpp mpr mps mrd mri mrm mro mrp mrr mrs msd msi msm mso msp msr mss o-i odd odi odm odo odp odr ods oid oii oim oio oip oir ois om- omd omi omm omo omp omr oms oo- ood ooi oom ooo oop oor oos op- opd opi opm opo opp opr ops or- ord ori orm oro orp orr ors os- osd osi osm oso osp osr oss p-p pdd pdi pdm pdo pdp pdr pds pid pii pim pio pip pir pis pmd pmi pmm pmo pmp pmr pms pod poi pom poo pop por pos ppd ppi ppm ppo ppp ppr pps prd pri prm pro prp prr prs ps- psd psi psm pso psp psr pss rdd rdi rdm rdo rdp rdr rds rid rii rim rio rip rir ris rmd rmi rmm rmo rmp rmr rms rod roi rom roo rop ror ros rpd rpi rpm rpo rpp rpr rps rrd rri rrm rrp rrr rrs rsd rsi rsm rso rsp rsr rss sdd sdi sdm sdo sdp sdr sds sid sii sim sio sip sir sis smd smi smm smo smp smr sms sod soi som soo sop sor sos spd spi spm spo spp spr sps sr- srd sri srm sro srp srr srs ss- ssd ssi ssm sso ssp ssr sss