c-- ccc ccl ccn ccs cct cl- clc cll cln cls clt cn- cnc cnl cnn cns cnt csc csl csn css cst ctc ctl ctn cts ctt lcc lcl lcn lcs lct llc lll lln lls llt lnc lnl lnn lns lnt lsc lsl lsn lss lst ltc ltl lts ltt ncc ncl ncn ncs nct nlc nll nln nls nlt nnc nnl nnn nns nnt nsc nsl nsn nss nst ntc ntn nts ntt scc scl scn scs sct slc sll sln sls slt snc snl snn sns snt ss- ssc ssl ssn sss sst stc stl stn sts stt tcc tcl tcn tcs tct tlc tll tln tls tlt tnc tnl tnn tns tnt tsc tsl tsn tss tst ttc ttl ttn tts ttt