c-- ccc ccd ccl ccr cct cdc cdd cdl cdr cdt cl- clc cld cll clr clt crc crd crl crr crt ctc ctd ctl ctr ctt dcc dcd dcl dcr dct ddc ddd ddl ddr ddt dl- dlc dld dll dlr dlt drc drd drl drr drt dtc dtd dtl dtr dtt lcc lcd lcl lcr lct ldc ldd ldl ldr ldt llc lld lll llr llt lrc lrd lrr lrt ltc ltd ltl ltr ltt rcc rcd rcl rcr rct rdc rdd rdl rdr rdt rlc rld rll rlr rlt rrc rrd rrl rrr rrt rtc rtd rtl rtr rtt tcc tcd tcl tcr tct tdc tdd tdl tdr tdt tlc tld tll tlr tlt trc trd trl trr trt ttc ttd ttl ttr ttt