c-- ccc ccd ccl ccm cct cdc cdd cdl cdm cdt cl- clc cld cll clm clt cmc cmd cml cmm cmt ctc ctd ctl ctm ctt dcc dcd dcl dcm dct ddc ddd ddl ddm ddt dl- dlc dld dll dlm dlt dmc dmd dml dmm dmt dtc dtd dtl dtm dtt lcc lcd lcl lcm lct ldc ldd ldl ldm ldt llc lld lll llm llt lmc lmd lml lmm lmt ltc ltd ltl ltm ltt mc- mcc mcd mcl mcm mct mdc mdd mdl mdm mdt mlc mld mll mlm mlt mmc mmd mml mmm mmt mtc mtd mtl mtm mtt tcc tcd tcl tcm tct tdc tdd tdl tdm tdt tlc tld tll tlm tlt tmc tmd tml tmm tmt ttc ttd ttl ttm ttt