bbb bbd bbf bbi bbr bbs bbt bdb bdd bdf bdi bdr bds bdt bfb bfd bff bfi bfr bfs bft bi- bib bid bif bii bir bis bit brb brd brf bri brr brs brt bsb bsd bsf bsi bsr bss bst btb btd btf bti btr bts btt dbb dbd dbf dbi dbr dbs dbt ddb ddd ddf ddi ddr dds ddt dfb dfd dff dfi dfr dfs dft di- dib did dif dii dir dis dit drb drd dri drr drs drt dsb dsd dsf dsi dsr dss dst dtb dtd dtf dti dtr dts dtt fbb fbd fbf fbi fbr fbs fbt fdb fdd fdf fdi fdr fds fdt ffd fff ffi ffr ffs fft fib fid fif fii fir fis fit frb frd frf fri frr frs frt fsb fsd fsf fsi fsr fss fst ftb ftd ftf fti ftr fts ftt i-d i-f ibb ibd ibf ibi ibr ibs ibt idb idd idf idi idr ids idt ifb ifd iff ifi ifr ifs ift iib iid iif iii iir iis iit ir- irb ird irf iri irr irs irt is- isb isd isf isi isr iss ist itb itd itf iti its itt rbb rbd rbf rbi rbr rbs rbt rdb rdd rdf rdi rdr rds rdt rfb rfd rff rfi rfr rfs rft rib rid rif rii rir ris rit rrb rrd rrf rri rrr rrs rrt rsb rsd rsf rsi rsr rss rst rtb rtd rtf rti rtr rts rtt sbb sbd sbf sbi sbr sbs sbt sdb sdd sdf sdi sdr sds sdt sfb sfd sff sfi sfr sfs sft sib sid sif sii sir sis sit sr- srb srd srf sri srr srs srt ss- ssb ssd ssf ssi ssr sss sst stb std stf sti str sts stt tbb tbd tbf tbi tbr tbs tbt tdb tdd tdf tdi tdr tds tdt tfb tfd tff tfi tfr tfs tft tib tid tif tii tir tis tit trb trd trf tri trr trs trt tsb tsd tsf tsi tsr tss tst ttb ttd ttf tti ttr tts ttt