c-- ccc ccl ccm ccs ccu cl- clc cll clm cls clu cmc cml cmm cms cmu csc csl csm css csu cuc cul cum cus cuu lcc lcl lcm lcs lcu llc lll llm lls llu lmc lml lmm lms lmu lsc lsl lsm lss lsu luc lul lum lus luu mc- mcc mcl mcm mcs mcu mlc mll mlm mls mlu mmc mml mmm mms mmu msc msl msm mss msu muc mul mum mus muu scc scl scm scs scu slc sll slm sls slu smc sml smm sms smu ss- ssc ssl ssm sss ssu suc sul sum sus suu ucc ucl ucm ucs ucu ulc ull ulm uls ulu um- umc uml umm ums umu usc usl usm uss usu uuc uum uus uuu