bbbb bbbs bbeb bcbc bcbs bccc bccs bcec bces bcsc bcss bcuc bebb bebe beby beck becs becu beeb beek bees beey beke beks bes- bese besk bess besy beuk beye beyk beys bkcy bscs bseb bsec bsee bses bssc bsse bubb bube bubs bubu bucc buce buck bucs bucu bueu buke bukk buku buky busc buse busk buss busu busy buus buys buyu byce byck byes byke bysb byse byss bysy cbbc cbbs cbcc cbce cbcs cbcu cbec cbee cbsc cbse cbus ccbc cccb cccc cccs cccu ccee ccss ccuc ccus cebs cebu cec- cece cecs ceeb ceec cees ceke cesc cese cess ceys ceyu ckbc ckbe ckck ckcs ckcy ckey cksb cscb cscc csce cscs csec csee csks csse csus csys cub- cubb cube cubs cuby cucc cuce cuck cuek cues cuk- cuke cusb cusk cuss cusu cusy cuy- cybb cybc cyc- cycb cycc cycs cyke cyse cyy- cyyc ebbc ebbs ebby ebcc ebes ebus ecbc ecbe eccb eccc ecce eces ecks ecky ecsc ecse ecss ecsu ecus eeby eecs eeee eees eeke eeks eese eesk eesy ekeb ekek ekes esbs escb esce escs escu esee esek eses eske esks esku esky esse essu essy esus eubc euse eyck eyeb eyec eyes eyey eyke eyse kbbb kbbc kbbe kbbk kbbs kbbu kbcb kbce kbck kbcs kbcu kbcy kbeb kbec kbee kbek kbes kbey kbkb kbkk kbky kbsb kbsk kbss kbsu kbsy kbub kbuc kbue kbuk kbus kbuu kbuy kbyb kbys kbyu kcbc kcbk kcbs kcbu kccb kccc kcck kccu kccy kceb kcec kcee kceu kcey kckc kckk kcky kcsb kcsc kcse kcss kcsu kcsy kcub kcue kcuk kcye kcyk kcys kcyy kebb kebc kebe kebu keck keek kees kekb kekc keke keks keku kesb kesc kesk kess kesy keus keyb keye keys keyu keyy kkbb kkbe kkbs kkcb kkck kkcs kkcy kkkk kkse kkss kksu kkus kkuu kkyc kkys kkyy ksbc ksbs ksby kscb ksce ksck kscs kscu kscy ksec ksee ksek ksey kskb kske kskk ksks ksku ksky ksse ksss kssu ksub ksue ksuu ksyc ksyy kubb kubc kube kubs kubu kuby kucb kucc kuce kuek kues kueu kuke kukk kuks kuku kuky kusb kusc kusu kuub kuuk kuuu kuyu kuyy kybb kybc kybe kyby kycc kyck kycs kyee kyes kykc kyke kykk kyks kyky kysc kyse kysk kyuk kyus kyuu kyyk kyys kyyy sbbs sbcc sbcs sbse sbus sccc scce sccs sccy scec scee scey sck- scsc scsu scub scye se-c se-e se-k se-s se-u se-y sebe sebs seby sec- secc sece seck secs secu secy seeb seec seek sees seeu seey seke sekk seku sesc sese sess seye seyk seys skee skes skey skss skue sky- skye skys skyy ssby sscc ssce sscs ssec ssee sses sssb sssc ssss sub- subb subs suc- succ suck sucs suee sues sueu suey suke suks suku suky sus- suse susk suss susu susy suus suyu syce syck syes syke syse syss syue syyk ubbe ubek ucbc uces ucky ucsb ucsc ucsu uess ueys ukcc ukek ukes ukeu ukky uksc us-k usbc usbe usbs uscc usce uscs usee uses uske ussb ussc usse usss ussu ussy usus uuuu ybbs yccc ycee ycsb ye-u yeck yeek yees yeke yesk yess yesu yeue yeuk yeye ykes ykey yksc ysby ysee yses ysse yssu ysue ysyb yubu yuce yuck yuke yuks yuku yuky yuye yuyu yyyy