-er -up c-- ccc cce ccl ccp ccr cct ccu ce- cec cee cel cep cer cet ceu cl- clc cle cll clp clr clt clu cpc cpe cpl cpp cpr cpt cpu crc cre crl crp crr crt cru ctc cte ctl ctp ctr ctt ctu cuc cue cul cup cur cut cuu ec- ecc ece ecl ecr ect ecu eec eee eel eep eer eet elc ele ell elp elr elt elu ep- epc epe epl epp epr ept epu erc ere erl erp err ert eru etc ete etl etp etr ett etu eu- euc eue eul eup eur eut l-p lcc lce lcl lcp lcr lct lcu lec lee lel lep ler let leu llc lle lll llp llr llt llu lpc lpe lpl lpp lpr lpt lpu lrc lrp lrr lrt lru ltc lte ltl ltp ltr ltt ltu luc lue lul lup lur lut luu p-p pcc pce pcl pcp pcr pct pcu pec pee pel pep per pet peu plc ple pll plp plr plt plu ppc ppe ppl ppp ppr ppt ppu prc pre prl prp prr prt pru pt- ptc pte ptl ptp ptr ptt ptu puc pue pul pup pur put puu rcc rce rcl rcp rcr rct rcu re- rec ree rel rep rer ret reu rlc rle rll rlp rlr rlt rlu rpc rpe rpl rpp rpr rpt rpu rrc rrl rrp rrr rrt rru rtc rte rtl rtp rtr rtt rtu ruc rue rup rur rut ruu tcc tce tcl tcp tcr tct tcu te- tec tee tel tep ter tet teu tlc tle tll tlp tlr tlt tlu tpc tpe tpl tpp tpr tpt tpu trc tre trl trp trr trt tru ttc tte ttl ttp ttr ttt ttu tuc tue tul tup tur tut tuu ucc uce ucl ucp ucr uct ucu uec uee uel uep uer uet ulc ule ull ulp ulr ult ulu up- upc upe upp upr upt upu ur- urc ure url urp urr urt uru utc ute utl utp utr utt utu uuc uue uur uut uuu