rbh rbi rbn rbr rbs rbt rca rcb rcc rce rcg rch rci rcn rcr rcs rct re- rea reb rec ree reg reh rei ren rer res ret rga rgb rgc rge rgg rgh rgi rgn rgr rgs rgt rh- rha rhb rhc rhe rhg rhh rhi rhn rhr rhs rht ria rib ric rie rig rih rii rin rir ris rit rna rnb rnc rng rnh rni rnn rnr rns rnt rra rrb rrc rrg rrh rri rrn rrr rrs rrt rsa rsb rsc rse rsg rsh rsi rsn rsr rss rst rta rtb rtc rte rtg rti rtn rtr rts rtt saa sab sac sae sag sah sai san sar sas sat sba sbb sbc sbe sbg sbh sbi sbn sbr sbs sbt sca scb scc sce scg sch sci scn scr scs sct se- sea seb sec see seg seh sei sen ser ses set sga sgb sgc sge sgg sgh sgi sgn sgr sgs sgt sh- sha shb shc she shg shh shi shn shr shs sht sia sib sic sie sig sih sii sin sir sis sit sna snb snc sne sng sni snn snr sns snt sr- sra srb src sre srg srh sri srn srr srs srt ss- ssa ssb ssc sse ssg ssh ssi ssn ssr sss sst sta stb stc ste stg sth sti stn str sts stt taa tab tac tae tag tah tai tan tar tas tat tba tbb tbc tbe tbg tbh tbi tbn tbr tbs tbt tca tcb tcc tce tcg tch tci tcn tcr tcs tct te- tea teb tec tee teg teh tei ten ter tes tet tga tgb tgc tge tgg tgh tgi tgn tgr tgs tgt th- tha thb thc the thg thh thi thn thr ths tht tia tib tic tie tig tih tii tin tir tis tit tna tnb tnc tne tng tnh tni tnn tnr tns tnt tra trb trc tre trg trh tri trn trr trs trt tsa tsb tsc tse tsg tsh tsi tsn tsr tss tst tta ttb ttc tte ttg tth tti ttn ttr tts ttt