cccc cccl cccs cccu cclc ccls ccsl ccss ccuc ccus ckck ckcl ckcs cksl clsc cscc cscl cscs csks cslu csus cucc cuck cuk- culc culk cull culs cusk cuss cusu kccc kcck kccl kccu kckc kckk kckl kclc kclk kcll kcls kclu kcsc kcss kcsu kcuk kcul kkck kkcl kkcs kkkk kklc kkll kkls kkss kksu kkus kkuu klcc klck klcl klcs klkc klkk klkl klks kllc kllk klls klsc klsu kluk kluu ksck kscl kscs kscu kskk ksks ksku kslc kslk ksll kslu kssl ksss kssu ksuu kucc kukk kukl kuks kuku kull kulu kusc kusu kuuk kuul kuuu lccc lccs lcls lcsc llcc llcs llks lllc llll lscs luck lucs lull lulu lusk luss luuk sccc sccl sccs sck- sckl scl- sclc sclk scls scsc scsl scsu scul skss skul slcc slcu slsc slsu sluc sscc sscs sslc sssc ssss suc- succ suck sucs suks suku sul- sulc sulk sull sulu sus- susk suss susu suus ucsc ucsu ukcc uksc ulcc uluk ulul ulus us-k uscc uscs uslu ussc usss ussu usul usus uulu uuuu