rba rbb rbc rbd rbe rbg rbi rbm rbr rbt rbu rca rcb rcc rcd rce rcg rci rcm rcr rct rcu rda rdb rdc rdd rde rdg rdi rdm rdr rdt rdu re- rea reb rec red ree reg rei rem rer ret reu rga rgb rgc rgd rge rgg rgi rgr rgt ria rib ric rid rie rig rii rim rir rit rma rmb rmc rmd rme rmg rmi rmm rmr rmt rra rrb rrc rrd rrg rri rrm rrr rrt rru rta rtb rtc rtd rte rtg rti rtm rtr rtt rtu rua rub ruc rud rue rug rui rum rur rut ruu taa tab tac tad tae tag tai tam tar tat tau tba tbb tbc tbd tbe tbg tbi tbm tbr tbt tbu tca tcb tcc tcd tce tcg tci tcm tcr tct tcu tda tdb tdc tdd tde tdg tdi tdm tdr tdt tdu te- tea teb tec ted tee teg tei tem ter tet teu tga tgb tgc tge tgg tgi tgm tgr tgt tgu tia tib tic tid tie tig tii tim tir tit tiu tma tmb tmc tmd tme tmg tmi tmm tmr tmt tmu tra trb trc trd tre trg tri trm trr trt tru tta ttb ttc ttd tte ttg tti ttm ttr ttt ttu tua tub tuc tud tue tug tui tum tur tut tuu ua- uaa uab uac uad uae uag uai uam uar uat uau uba ubb ubc ube ubg ubi ubr ubt ubu uca ucb ucc ucd uce ucg uci ucm ucr uct ucu uda udb udc udd ude udg udi udm udr udt udu uea ueb uec ued uee ueg uei uem uer uet uga ugb ugc uge ugg ugi ugm ugr ugt ugu uia uib uic uid uie uig uii uim uir uit uiu um- uma umb umc umd ume umg umi umm umr umt umu ur- ura urb urc urd ure urg uri urm urr urt uru uta utb utc utd ute uti utm utr utt utu uua uuc uue uug uum uur uut uuu