rca rcc rcd rce rcl rcn rco rcp rcr rct rcu rda rdc rdd rde rdl rdn rdo rdp rdr rdt rdu re- rea rec red ree rel ren reo rep rer ret reu rla rlc rld rle rll rln rlo rlp rlr rlt rlu rna rnc rnd rnn rno rnp rnr rnt rnu roa roc rod roe rol ron roo rop ror rot rou rpa rpc rpd rpe rpl rpn rpo rpp rpr rpt rpu rra rrc rrd rrl rrn rrp rrr rrt rru rta rtc rtd rte rtl rtn rto rtp rtr rtt rtu rua ruc rud rue run ruo rup rur rut ruu taa tac tad tae tal tan tao tap tar tat tau tca tcc tcd tce tcl tcn tco tcp tcr tct tcu tda tdc tdd tde tdl tdn tdo tdp tdr tdt tdu te- tea tec ted tee tel ten teo tep ter tet teu tla tlc tld tle tll tln tlo tlp tlr tlt tlu tna tnc tnd tne tnl tnn tno tnp tnr tnt to- toa toc tod toe tol ton too top tor tot tou tpa tpc tpd tpe tpl tpn tpo tpp tpr tpt tpu tra trc trd tre trl trn tro trp trr trt tru tta ttc ttd tte ttl ttn tto ttp ttr ttt ttu tua tuc tud tue tul tun tuo tup tur tut tuu ua- uaa uac uad uae ual uan uao uap uar uat uau uca ucc ucd uce ucl ucn uco ucp ucr uct ucu uda udc udd ude udl udn udo udp udr udt udu uea uec ued uee uel uen uep uer uet ula ulc uld ule ull uln ulo ulp ulr ult ulu un- una unc und une unl unn uno unp unr unt unu uoa uoc uod uoe uol uon uoo uop uor uot up- upa upc upd upe upn upo upp upr upt upu ur- ura urc urd ure url urn uro urp urr urt uru uta utc utd ute utl utn uto utp utr utt utu uua uuc uue uun uur uut uuu