c-- ccc ccl ccm ccs cct ccu cl- clc cll clm cls clt clu cmc cml cmm cms cmt cmu csc csl csm css cst csu ctc ctl ctm cts ctt ctu cuc cul cum cus cut cuu lcc lcl lcm lcs lct lcu llc lll llm lls llt llu lmc lml lmm lms lmt lmu lsc lsl lsm lss lst lsu ltc ltl ltm lts ltt ltu luc lul lum lus lut luu mc- mcc mcl mcm mcs mct mcu mlc mll mlm mls mlt mlu mmc mml mmm mms mmt mmu msc msl msm mss mst msu mtc mtl mtm mts mtt mtu muc mul mum mus mut muu scc scl scm scs sct scu slc sll slm sls slt slu smc sml smm sms smt smu ss- ssc ssl ssm sss sst ssu stc stl stm sts stt stu suc sul sum sus sut suu tcc tcl tcm tcs tct tcu tlc tll tlm tls tlt tlu tmc tml tmm tms tmt tmu tsc tsl tsm tss tst tsu ttc ttl ttm tts ttt ttu tuc tul tum tus tut tuu ucc ucl ucm ucs uct ucu ulc ull ulm uls ult ulu um- umc uml umm ums umt umu usc usl usm uss ust usu utc utl utm uts utt utu uuc uum uus uut uuu