cccc cccf cccl cccs cccu ccfc ccff ccfl cclc ccls ccsf ccsl ccss ccuc ccus cfcf cfcl cfcs cfls cfsl clsc cscc cscf cscl cscs csfc cslu csuf csus cucc cufc cuff culc cull culs cuss cusu fccf fcsc fcsl ffcc ffff ffss flcl fluf flus fscc fssc fssf fuc- fufc fuff fufu full fuls fulu fusc fuss fusu lccc lccs lcfc lcls lcsc lfcc llcc llcs lllc llll lscs lsfc lucs luff lufu lull lulu luss sccc sccl sccs scfc scl- sclc scls scsc scsl scsu scul sfcc sfcs sffc sflc sfls sfss sfsu slcc slcu slsc slsu sluc sscc sscs ssfc ssfl sslc sssc sssf ssss suc- succ sucs suf- sufc suff sufs sufu sul- sulc sulf sull sulu sus- suss susu suus ucsc ucsf ucsu ufcu ulcc ulul ulus uscc uscf uscs usfc usfl usfs uslu ussc ussf usss ussu usul usus uulu uuuu