bbbb bbbs bbeb bcbc bcbs bccc bccs bcec bces bcsc bcss bcuc bebb bebe beck becs becu beeb beek bees beke beks bes- bese besk bess beuk beze bezu bscs bseb bsec bsee bses bssc bsse bubb bube bubs bubu bucc buce buck bucs bucu bucz bueu buke bukk buku busc buse busk buss busu buus buuz buze buzz bzzz 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 ceze ckbc ckbe ckck ckcs cksb cscb cscc csce cscs csec csee csks csse csus cub- cubb cube cubs cucc cuce cuck cuek cues cuk- cuke cusb cusk cuss cusu ebbc ebbs ebcc ebes ebus ecbc ecbe eccb eccc ecce eces ecks ecsc ecse ecss ecsu ecus eecs eeee eees eeke eeks eese eesk eeze ekeb ekek ekes esbs escb esce escs escu esee esek eses eske esks esku esse essu esus eubc euse ezek ezuz kbbb kbbc kbbe kbbk kbbs kbbu kbbz kbcb kbce kbck kbcs kbcu kbcz kbeb kbec kbee kbek kbes kbez kbkb kbkk kbkz kbsb kbsk kbss kbsu kbsz kbub kbuc kbue kbuk kbus kbuu kbuz kbzc kbze kbzs kbzu kbzz kcbc kcbk kcbs kcbu kccb kccc kcck kccu kceb kcec kcee kceu kcez kckc kckk kckz kcsb kcsc kcse kcss kcsu kcub kcue kcuk kcuz kcze kczz kebb kebc kebe kebu keck keek kees kekb kekc keke keks keku kesb kesc kesk kess kesz keus kezb keze kezz kkbb kkbe kkbs kkbz kkcb kkck kkcs kkez kkkk kkse kkss kksu kkus kkuu kkzu kkzz ksbc ksbs ksbz kscb ksce ksck kscs kscu ksec ksee ksek ksez kskb kske kskk ksks ksku kskz ksse ksss kssu kssz ksub ksue ksuu kubb kubc kube kubs kubu kucb kucc kuce kuek kues kueu kuke kukk kuks kuku kusb kusc kusu kuub kuuk kuuu kuuz kuze kuzu kuzz kzbb kzbe kzbk kzbs kzbz kzee kzke kzks kzkz kzsb kzsc kzse kzsu kzue kzus kzuu kzuz kzzb kzzk kzzs kzzz sbbs sbcc sbcs sbse sbus sccc scce sccs scec scee sck- scsc scsu scub se-c se-e se-k se-s se-u se-z sebe sebs sec- secc sece seck secs secu seeb seec seek sees seeu seez seke sekk seku sesc sese sess skee skes skss skue sscc ssce sscs ssec ssee sses sssb sssc ssss sub- subb subs subz suc- succ suck sucs suee sues sueu suez suke suks suku sus- suse susk suss susu susz suus suze suzu suzz szss szuc ubbe ubek ucbc uces ucsb ucsc ucsu uess ukcc ukek ukes ukeu uksc us-k usbc usbe usbs uscc usce uscs usee uses uske ussb ussc usse usss ussu usus uuuu uzeb zbek zbus zebe zebu zeck zeek zees zeke zeks zeku zeus zeze zsss zubu zuce zuck zuke zuuk zuzu zzzs zzzz