c-- ccc ccl ccn ccr cct cl- clc cll cln clr clt cn- cnc cnl cnn cnr cnt crc crl crn crr crt ctc ctl ctn ctr ctt lcc lcl lcn lcr lct llc lll lln llr llt lnc lnl lnn lnr lnt lrc lrn lrr lrt ltc ltl ltr ltt ncc ncl ncn ncr nct nlc nll nln nlr nlt nnc nnl nnn nnt nrc nrl nrn nrr nrt ntc ntn ntr ntt rcc rcl rcn rcr rct rlc rll rln rlr rlt rnc rnn rnr rnt rrc rrl rrn rrr rrt rtc rtl rtn rtr rtt tcc tcl tcn tcr tct tlc tll tln tlr tlt tnc tnl tnn tnr tnt trc trl trn trr trt ttc ttl ttn ttr ttt