c-- ccc cck ccl ccn ccs ccu ckc cks cl- clc clk cll cln cls clu cn- cnc cnl cnn cns cnu csc csk csl csn css csu cuc cuk cul cun cus cuu kcc kck kcl kcn kcs kcu kkc kkk kkl kkn kks kku kl- klc kls klu kn- knc knk knl knn knu ksc ksk ksl ksn kss ksu kuc kuk kul kun kus kuu lcc lck lcl lcn lcs lcu lkl lks llc llk lll lln lls llu lnc lnk lnl lnn lns lnu lsc lsk lsl lsn lss lsu luc luk lul lun lus luu ncc nck ncl ncn ncs ncu nkc nkk nkn nks nku nlc nlk nll nln nls nlu nnc nnk nnl nnn nns nnu nsc nsk nsl nsn nss nsu nuc nuk nul nun nus nuu scc sck scl scn scs scu sk- skc skk skl sks sku slc slk sll sln sls slu snc snk snl snn sns snu ss- ssc ssk ssl ssn sss ssu suc suk sul sun sus suu ucc uck ucl ucn ucs ucu ukc ukk ukl ukn uku ulc ulk ull uln uls ulu un- unc unk unl unn uns unu usc usk usl usn uss usu uuc uun uus uuu