c-- ccc ccd ccl ccm ccs ccu cdc cdd cdl cdm cds cdu cl- clc cld cll clm cls clu cmc cmd cml cmm cms cmu csc csd csl csm css csu cuc cud cul cum cus cuu dcc dcd dcl dcm dcs dcu ddc ddd ddl ddm dds ddu dl- dlc dld dll dlm dls dlu dmc dmd dml dmm dms dmu dsc dsd dsl dsm dss dsu duc dud dul dum dus lcc lcd lcl lcm lcs lcu ldc ldd ldl ldm lds ldu llc lld lll llm lls llu lmc lmd lml lmm lms lmu lsc lsd lsl lsm lss lsu luc lud lul lum lus luu mc- mcc mcd mcl mcm mcs mcu mdc mdd mdl mdm mds mdu mlc mld mll mlm mls mlu mmc mmd mml mmm mms mmu msc msd msl msm mss msu muc mud mul mum mus muu scc scd scl scm scs scu sdc sdd sdl sdm sds sdu slc sld sll slm sls slu smc smd sml smm sms smu ss- ssc ssd ssl ssm sss ssu suc sud sul sum sus suu ucc ucd ucl ucm ucs ucu udc udd udl udm uds udu ulc uld ull ulm uls ulu um- umc umd uml umm ums umu usc usd usl usm uss usu uuc uum uus uuu