rfi rfl rfn rfr rfs rft rgb rgd rge rgf rgg rgi rgn rgr rgs rgt rib rid rie rif rig rii ril rin rir ris rit rld rle rlf rlg rli rll rln rlr rls rlt rnb rnd rng rni rnn rnr rns rnt rrb rrd rrf rrg rri rrl rrn rrr rrs rrt rsb rsd rse rsf rsg rsi rsl rsn rsr rss rst rtb rtd rte rtf rtg rti rtl rtn rtr rts rtt sbb sbd sbe sbf sbg sbi sbl sbn sbr sbs sbt sdb sdd sde sdf sdg sdi sdl sdn sdr sds sdt se- seb sed see sef seg sei sel sen ser ses set sfb sfd sfe sff sfg sfi sfl sfn sfr sfs sft sgb sgd sge sgf sgg sgi sgl sgn sgr sgs sgt sib sid sie sif sig sii sil sin sir sis sit slb sld sle slf slg sli sll sln slr sls slt snb snd sne snf sng sni snl snn snr sns snt sr- srb srd sre srf srg sri srl srn srr srs srt ss- ssb ssd sse ssf ssg ssi ssl ssn ssr sss sst stb std ste stf stg sti stl stn str sts stt tbb tbd tbe tbf tbg tbi tbl tbn tbr tbs tbt tdb tdd tde tdf tdg tdi tdl tdn tdr tds tdt te- teb ted tee tef teg tei tel ten ter tes tet tfb tfd tfe tff tfg tfi tfl tfn tfr tfs tft tgb tge tgf tgg tgi tgl tgn tgr tgs tgt tib tid tie tif tig tii til tin tir tis tit tld tle tlf tlg tli tll tln tlr tls tlt tnb tnd tne tnf tng tni tnl tnn tnr tns tnt trb trd tre trf trg tri trl trn trr trs trt tsb tsd tse tsf tsg tsi tsl tsn tsr tss tst ttb ttd tte ttf ttg tti ttl ttn ttr tts ttt