c-- ccc ccl ccm ccr ccs cl- clc cll clm clr cls cmc cml cmm cmr cms crc crl crm crr crs csc csl csm csr css lcc lcl lcm lcr lcs llc lll llm llr lls lmc lml lmm lmr lms lrc lrm lrr lrs lsc lsl lsm lsr lss m-r mc- mcc mcl mcm mcr mcs mlc mll mlm mlr mls mmc mml mmm mmr mms mrc mrl mrm mrr mrs msc msl msm msr mss rcc rcl rcm rcr rcs rlc rll rlm rlr rls rmc rml rmm rmr rms rrc rrl rrm rrr rrs rsc rsl rsm rsr rss scc scl scm scr scs slc sll slm slr sls smc sml smm smr sms sr- src srl srm srr srs ss- ssc ssl ssm ssr sss