ran rao rar ras rat rca rcc rcd rcg rci rcl rcn rco rcr rcs rct rda rdc rdd rdg rdi rdl rdn rdo rdr rds rdt rga rgc rgd rgg rgi rgn rgo rgr rgs rgt ria ric rid rig rii ril rin rio rir ris rit rla rlc rld rlg rli rll rln rlo rlr rls rlt rna rnc rnd rng rni rnn rno rnr rns rnt roa roc rod rog roi rol ron roo ror ros rot rra rrc rrd rrg rri rrl rrn rrr rrs rrt rsa rsc rsd rsg rsi rsl rsn rso rsr rss rst rta rtc rtd rtg rti rtl rtn rto rtr rts rtt saa sac sad sag sai sal san sao sar sas sat sca scc scd scg sci scl scn sco scr scs sct sda sdc sdd sdg sdi sdl sdn sdo sdr sds sdt sga sgc sgd sgg sgi sgl sgn sgo sgr sgs sgt sia sic sid sig sii sil sin sio sir sis sit sla slc sld slg sli sll sln slo slr sls slt sna snc snd sng sni snl snn sno snr sns snt soa soc sod sog soi sol son soo sor sos sot sr- sra src srd srg sri srl srn sro srr srs srt ss- ssa ssc ssd ssg ssi ssl ssn sso ssr sss sst sta stc std stg sti stl stn sto str sts stt taa tac tad tag tai tal tan tao tar tas tat tca tcc tcd tcg tci tcl tcn tco tcr tcs tct tda tdc tdd tdg tdi tdl tdn tdo tdr tds tdt tga tgc tgg tgi tgl tgn tgo tgr tgs tgt tia tic tid tig tii til tin tio tir tis tit tla tlc tld tlg tli tll tln tlo tlr tls tlt tna tnc tnd tng tni tnl tnn tno tnr tns tnt to- toa toc tod tog toi tol ton too tor tos tot tra trc trd trg tri trl trn tro trr trs trt tsa tsc tsd tsg tsi tsl tsn tso tsr tss tst tta ttc ttd ttg tti ttl ttn tto ttr tts ttt