rad rae rag rai ral ram rar ras rat rca rcc rcd rce rcg rci rcl rcm rcr rcs rct rda rdc rdd rde rdg rdi rdl rdm rdr rds rdt re- rea rec red ree reg rei rel rem rer res ret rga rgc rgd rge rgg rgi rgr rgs rgt ria ric rid rie rig rii ril rim rir ris rit rla rlc rld rle rlg rli rll rlm rlr rls rlt rma rmc rmd rme rmg rmi rml rmm rmr rms rmt rra rrc rrd rrg rri rrl rrm rrr rrs rrt rsa rsc rsd rse rsg rsi rsl rsm rsr rss rst rta rtc rtd rte rtg rti rtl rtm rtr rts rtt saa sac sad sae sag sai sal sam sar sas sat sca scc scd sce scg sci scl scm scr scs sct sda sdc sdd sde sdg sdi sdl sdm sdr sds sdt se- sea sec sed see seg sei sel sem ser ses set sga sgc sgd sge sgg sgi sgl sgm sgr sgs sgt sia sic sid sie sig sii sil sim sir sis sit sla slc sld sle slg sli sll slm slr sls slt sma smc smd sme smg smi sml smm smr sms smt sr- sra src srd sre srg sri srl srm srr srs srt ss- ssa ssc ssd sse ssg ssi ssl ssm ssr sss sst sta stc std ste stg sti stl stm str sts stt taa tac tad tae tag tai tal tam tar tas tat tca tcc tcd tce tcg tci tcl tcm tcr tcs tct tda tdc tdd tde tdg tdi tdl tdm tdr tds tdt te- tea tec ted tee teg tei tel tem ter tes tet tga tgc tge tgg tgi tgl tgm tgr tgs tgt tia tic tid tie tig tii til tim tir tis tit tla tlc tld tle tlg tli tll tlm tlr tls tlt tma tmc tmd tme tmg tmi tml tmm tmr tms tmt tra trc trd tre trg tri trl trm trr trs trt tsa tsc tsd tse tsg tsi tsl tsm tsr tss tst tta ttc ttd tte ttg tti ttl ttm ttr tts ttt