c-- ccc ccd ccs ccu ccv cdc cdd cds cdu cdv csc csd css csu csv cuc cud cus cuu cuv cvc cvd cvs cvu cvv dcc dcd dcs dcu dcv ddc ddd dds ddu dsc dsd dss dsu dsv duc dud dus duv dvc dvd dvs dvu scc scd scs scu scv sdc sdd sds sdu sdv ss- ssc ssd sss ssu ssv suc sud sus suu suv svc svd svs svu svv ucc ucd ucs ucu ucv udc udd uds udu udv usc usd uss usu usv uuc uus uuu uvc uvs uvu uvv vcc vcd vcs vcu vdc vdd vds vdu vdv vsc vsd vss vsu vsv vus vuv vvc vvs vvv