-er c-- ccc ccd cce ccl ccp ccr cct cdc cdd cde cdl cdp cdr cdt ce- cec ced cee cel cep cer cet cl- clc cld cle cll clp clr clt cpc cpd cpe cpl cpp cpr cpt crc crd cre crl crp crr crt ctc ctd cte ctl ctp ctr ctt dcc dcd dce dcl dcp dcr dct ddc ddd dde ddl ddp ddr ddt de- dec ded dee del dep der det dl- dlc dld dle dll dlp dlr dlt dpc dpd dpe dpl dpp dpr dpt drc drd dre drl drp drr drt dtc dtd dte dtl dtp dtr dtt ec- ecc ecd ece ecl ecr ect ed- edc edd ede edl edp edr edt eec eed eee eel eep eer eet elc eld ele ell elp elr elt ep- epc epd epe epl epp epr ept erc erd ere erl erp err ert etc etd ete etl etp etr ett l-p lcc lcd lce lcl lcp lcr lct ldc ldd lde ldl ldp ldr ldt lec led lee lel lep ler let llc lld lle lll llp llr llt lpc lpd lpe lpl lpp lpr lpt lrc lrd lrp lrr lrt ltc ltd lte ltl ltp ltr ltt p-p pcc pcd pce pcl pcp pcr pct pdc pdd pde pdl pdp pdr pdt pec ped pee pel pep per pet plc pld ple pll plp plr plt ppc ppd ppe ppl ppp ppr ppt prc prd pre prl prp prr prt pt- ptc ptd pte ptl ptp ptr ptt rcc rcd rce rcl rcp rcr rct rdc rdd rde rdl rdp rdr rdt re- rec red ree rel rep rer ret rlc rld rle rll rlp rlr rlt rpc rpd rpe rpl rpp rpr rpt rrc rrd rrl rrp rrr rrt rtc rtd rte rtl rtp rtr rtt tcc tcd tce tcl tcp tcr tct tdc tdd tde tdl tdp tdr tdt te- tec ted tee tel tep ter tet tlc tld tle tll tlp tlr tlt tpc tpd tpe tpl tpp tpr tpt trc trd tre trl trp trr trt ttc ttd tte ttl ttp ttr ttt