bbbb bbbs bbfc bblb bbls bcbc bcbs bccc bccl bccs bcfc bcsc bcsl bcss bcuc bfcs bffl bffs blcu blfc blls blss blub bluf blus bscs bsfc bsff bsfs bslc bssc bubb bubs bubu bucc bucs bucu bufc buff bulb bull buls bulu busc buss busu buus cbbc cbbs cbcc cbcl cbcs cbcu cbfb cbfc cblb cblc cbsc cbus ccbc cccb cccc cccf cccl cccs cccu ccfc ccff ccfl cclc ccls ccsf ccsl ccss ccuc ccus cfbc cfbs cfcb cfcf cfcl cfcs cffb cfls cfsl clsc club csbf cscb cscc cscf cscl cscs csfc cslu csuf csus cub- cubb cubs cucc cufc cuff culb culc cull culs cusb cuss cusu fbus fcbs fccf fcsc fcsl ffcc ffff ffss flcl flub fluf flus fscb fscc fssc fssf fubb fubs fubu fuc- fufc fuff fufu full fuls fulu fusc fuss fusu lbcc lbsc lcbc lccc lccs lcfc lcls lcsc lfcc llbs llcc llcs lllc llll lsbu lscb lscs lsfc lubs lucs luff lufu lull lulu luss sbbs sbcc sbcs sbfc sbus sccc sccl sccs scfc scl- sclc scls scsc scsl scsu scub scul sfbc sfcc sfcs sffc sflc sfls sfss sfsu slcc slcu slsc slsu slub sluc sscc sscs ssfc ssfl sslc sssb sssc sssf ssss sub- subb subl subs suc- succ sucs suf- sufc suff sufs sufu sul- sulc sulf sull sulu sus- suss susu suus ubls ucbc ucfb ucsb ucsc ucsf ucsu ufcu ulbc ulcc ulul ulus usbc usbl usbs uscc uscf uscs usfc usfl usfs uslu ussb ussc ussf usss ussu usul usus uulu uuuu