-er c-- ccc ccd cce ccl ccr cct ccu cdc cdd cde cdl cdr cdt cdu ce- cec ced cee cel cer cet ceu cl- clc cld cle cll clr clt clu crc crd cre crl crr crt cru ctc ctd cte ctl ctr ctt ctu cuc cud cue cul cur cut cuu dcc dcd dce dcl dcr dct dcu ddc ddd dde ddl ddr ddt ddu de- dec ded dee del der det deu dl- dlc dld dle dll dlr dlt dlu drc drd dre drl drr drt dru dtc dtd dte dtl dtr dtt dtu duc dud due dul dur dut ec- ecc ecd ece ecl ecr ect ecu ed- edc edd ede edl edr edt edu eec eed eee eel eer eet elc eld ele ell elr elt elu erc erd ere erl err ert eru etc etd ete etl etr ett etu eu- euc eud eue eul eur eut lcc lcd lce lcl lcr lct lcu ldc ldd lde ldl ldr ldt ldu lec led lee lel ler let leu llc lld lle lll llr llt llu lrc lrd lrr lrt lru ltc ltd lte ltl ltr ltt ltu luc lud lue lul lur lut luu rcc rcd rce rcl rcr rct rcu rdc rdd rde rdl rdr rdt rdu re- rec red ree rel rer ret reu rlc rld rle rll rlr rlt rlu rrc rrd rrl rrr rrt rru rtc rtd rte rtl rtr rtt rtu ruc rud rue rur rut ruu tcc tcd tce tcl tcr tct tcu tdc tdd tde tdl tdr tdt tdu te- tec ted tee tel ter tet teu tlc tld tle tll tlr tlt tlu trc trd tre trl trr trt tru ttc ttd tte ttl ttr ttt ttu tuc tud tue tul tur tut tuu ucc ucd uce ucl ucr uct ucu udc udd ude udl udr udt udu uec ued uee uel uer uet ulc uld ule ull ulr ult ulu ur- urc urd ure url urr urt uru utc utd ute utl utr utt utu uuc uue uur uut uuu