-er c-- c-j ccc ccd cce ccj ccr cct cdc cdd cde cdj cdr cdt ce- cec ced cee cej cer cet cjc cjd cjr crc crd cre crj crr crt ctc ctd cte ctr ctt dcc dcd dce dcr dct ddc ddd dde ddr ddt de- dec ded dee dej der det dj- djc djd dje djt drc drd dre drj drr drt dtc dtd dte dtj dtr dtt ec- ecc ecd ece ecj ecr ect ed- edc edd ede edj edr edt eec eed eee eer eet ejc ejd ejt erc erd ere err ert etc etd ete etj etr ett j-d jcc jcd jce jcr jct jdc jde jdr jdt jec jed jee jej jer jet jjc jjj jjr jrc jrr jrt jtc jte jtr jtt rcc rcd rce rcj rcr rct rdc rdd rde rdj rdr rdt re- rec red ree rer ret rjc rjr rrc rrd rrr rrt rtc rtd rte rtj rtr rtt tcc tcd tce tcj tcr tct tdc tdd tde tdr tdt te- tec ted tee tej ter tet tjc tjd tje tjr trc trd tre trr trt ttc ttd tte ttr ttt