rat rca rcc rcd rcf rch rci rcl rco rcr rcs rct rda rdc rdd rdf rdh rdi rdl rdo rdr rds rdt rfa rfc rfd rff rfh rfi rfl rfo rfr rfs rft rh- rha rhc rhd rhf rhh rhi rhl rho rhr rhs rht ria ric rid rif rih rii ril rio rir ris rit rla rlc rld rlf rlh rli rll rlo rlr rls rlt roa roc rod rof roh roi rol roo ror ros rot rra rrc rrd rrf rrh rri rrl rrr rrs rrt rsa rsc rsd rsf rsh rsi rsl rso rsr rss rst rta rtc rtd rtf rti rtl rto rtr rts rtt saa sac sad saf sah sai sal sao sar sas sat sca scc scd scf sch sci scl sco scr scs sct sda sdc sdd sdf sdh sdi sdl sdo sdr sds sdt sfa sfc sfd sff sfh sfi sfl sfo sfr sfs sft sh- sha shc shd shf shh shi shl sho shr shs sht sia sic sid sif sih sii sil sio sir sis sit sla slc sld slf slh sli sll slo slr sls slt soa soc sod sof soh soi sol soo sor sos sot sr- sra src srd srf srh sri srl sro srr srs srt ss- ssa ssc ssd ssf ssh ssi ssl sso ssr sss sst sta stc std stf sth sti stl sto str sts stt taa tac tad taf tah tai tal tao tar tas tat tca tcc tcd tcf tch tci tcl tco tcr tcs tct tda tdc tdd tdf tdh tdi tdl tdo tdr tds tdt tfa tfc tfd tff tfh tfi tfl tfo tfr tfs tft th- tha thc thd thf thh thi thl tho thr ths tht tia tic tid tif tih tii til tio tir tis tit tla tlc tld tlf tlh tli tll tlo tlr tls tlt to- toa toc tod tof toh toi tol too tor tos tot tra trc trd trf trh tri trl tro trr trs trt tsa tsc tsd tsf tsh tsi tsl tso tsr tss tst tta ttc ttd ttf tth tti ttl tto ttr tts ttt