ddd ddf ddi ddo ddp ddr dds ddt dfd dff dfi dfo dfp dfr dfs dft di- did dif dii dio dip dir dis dit dod dof doi doo dop dor dos dot dpd dpf dpi dpo dpp dpr dps dpt drd dri dro drp drr drs drt dsd dsf dsi dso dsp dsr dss dst dtd dtf dti dto dtp dtr dts dtt fdd fdf fdi fdo fdp fdr fds fdt ffd fff ffi ffo ffp ffr ffs fft fid fif fii fip fir fis fit fof foi foo fop for fos fot fpd fpi fpo fpp fpr fps fpt frd frf fri fro frp frr frs frt fsd fsf fsi fso fsp fsr fss fst ftd ftf fti fto ftp ftr fts ftt i-d i-f idd idf idi ido idp idr ids idt ifd iff ifi ifo ifp ifr ifs ift iid iif iii iio iip iir iis iit io- iod iof ioi ioo iop ior ios iot ipd ipf ipi ipo ipp ipr ips ipt ir- ird irf iri iro irp irr irs irt is- isd isf isi iso isp isr iss ist itd itf iti ito itp its itt o-i odd odf odi odo odp odr ods odt of- ofd off ofi ofo ofp ofr ofs oft oid oif oii oio oip oir ois oit oo- ood oof ooi ooo oop oor oos oot op- opd opf opi opo opp opr ops opt or- ord orf ori oro orp orr ors ort os- osd osf osi oso osp osr oss ost ot- otd otf oti oto otp otr ots ott p-p pdd pdf pdi pdo pdp pdr pds pdt pfd pff pfi pfo pfp pfr pfs pft pid pif pii pio pip pir pis pit pod pof poi poo pop por pos pot ppd ppf ppi ppo ppp ppr pps ppt prd prf pri pro prp prr prs prt ps- psd psf psi pso psp psr pss pst pt- ptd ptf pti pto ptp ptr pts ptt rdd rdf rdi rdo rdp rdr rds rdt rfd rff rfi rfo rfp rfr rfs rft rid rif rii rio rip rir ris rit rod rof roi roo rop ror ros rot rpd rpf rpi rpo rpp rpr rps rpt rrd rrf rri rrp rrr rrs rrt rsd rsf rsi rso rsp rsr rss rst rtd rtf rti rto rtp rtr rts rtt sdd sdf sdi sdo sdp sdr sds sdt sfd sff sfi sfo sfp sfr sfs sft sid sif sii sio sip sir sis sit sod sof soi soo sop sor sos sot spd spf spi spo spp spr sps spt sr- srd srf sri sro srp srr srs srt ss- ssd ssf ssi sso ssp ssr sss sst std stf sti sto stp str sts stt tdd tdf tdi tdo tdp tdr tds tdt tfd tff tfi tfo tfp tfr tfs tft tid tif tii tio tip tir tis tit to- tod tof toi too top tor tos tot tpd tpf tpi tpo tpp tpr tps tpt trd trf tri tro trp trr trs trt tsd tsf tsi tso tsp tsr tss tst ttd ttf tti tto ttp ttr tts ttt