ddd ddf ddi ddr dds ddt dfd dff dfi dfr dfs dft di- did dif dii dir dis dit drd dri drr drs drt dsd dsf dsi dsr dss dst dtd dtf dti dtr dts dtt fdd fdf fdi fdr fds fdt ffd fff ffi ffr ffs fft fid fif fii fir fis fit frd frf fri frr frs frt fsd fsf fsi fsr fss fst ftd ftf fti ftr fts ftt i-d i-f idd idf idi idr ids idt ifd iff ifi ifr ifs ift iid iif iii iir iis iit ir- ird irf iri irr irs irt is- isd isf isi isr iss ist itd itf iti its itt rdd rdf rdi rdr rds rdt rfd rff rfi rfr rfs rft rid rif rii rir ris rit rrd rrf rri rrr rrs rrt rsd rsf rsi rsr rss rst rtd rtf rti rtr rts rtt sdd sdf sdi sdr sds sdt sfd sff sfi sfr sfs sft sid sif sii sir sis sit sr- srd srf sri srr srs srt ss- ssd ssf ssi ssr sss sst std stf sti str sts stt tdd tdf tdi tdr tds tdt tfd tff tfi tfr tfs tft tid tif tii tir tis tit trd trf tri trr trs trt tsd tsf tsi tsr tss tst ttd ttf tti ttr tts ttt