rcc rcd rce rcf rch rci rcn rcr rcs rct rda rdc rdd rde rdf rdh rdi rdn rdr rds rdt re- rea rec red ree ref reh rei ren rer res ret rfa rfc rfd rfe rff rfh rfi rfn rfr rfs rft rh- rha rhc rhd rhe rhf rhh rhi rhn rhr rhs rht ria ric rid rie rif rih rii rin rir ris rit rna rnc rnd rnh rni rnn rnr rns rnt rra rrc rrd rrf rrh rri rrn rrr rrs rrt rsa rsc rsd rse rsf rsh rsi rsn rsr rss rst rta rtc rtd rte rtf rti rtn rtr rts rtt saa sac sad sae saf sah sai san sar sas sat sca scc scd sce scf sch sci scn scr scs sct sda sdc sdd sde sdf sdh sdi sdn sdr sds sdt se- sea sec sed see sef seh sei sen ser ses set sfa sfc sfd sfe sff sfh sfi sfn sfr sfs sft sh- sha shc shd she shf shh shi shn shr shs sht sia sic sid sie sif sih sii sin sir sis sit sna snc snd sne snf sni snn snr sns snt sr- sra src srd sre srf srh sri srn srr srs srt ss- ssa ssc ssd sse ssf ssh ssi ssn ssr sss sst sta stc std ste stf sth sti stn str sts stt taa tac tad tae taf tah tai tan tar tas tat tca tcc tcd tce tcf tch tci tcn tcr tcs tct tda tdc tdd tde tdf tdh tdi tdn tdr tds tdt te- tea tec ted tee tef teh tei ten ter tes tet tfa tfc tfd tfe tff tfh tfi tfn tfr tfs tft th- tha thc thd the thf thh thi thn thr ths tht tia tic tid tie tif tih tii tin tir tis tit tna tnc tnd tne tnf tnh tni tnn tnr tns tnt tra trc trd tre trf trh tri trn trr trs trt tsa tsc tsd tse tsf tsh tsi tsn tsr tss tst tta ttc ttd tte ttf tth tti ttn ttr tts ttt