bbbb bbbs bbeb bcbc bcbs bccc bccs bcec bces bcsc bcss bebb bebe beck becs beeb beek bees beke beks bes- bese besk bess beze bscs bseb bsec bsee bses bssc bsse bzzz cbbc cbbs cbcc cbce cbcs cbec cbee cbsc cbse ccbc cccb cccc cccs ccee ccss cebs cec- cece cecs ceeb ceec cees ceke cesc cese cess ceze ckbc ckbe ckck ckcs cksb cscb cscc csce cscs csec csee csks csse ebbc ebbs ebcc ebes ecbc ecbe eccb eccc ecce eces ecks ecsc ecse ecss eecs eeee eees eeke eeks eese eesk eeze ekeb ekek ekes esbs escb esce escs esee esek eses eske esks esse ezek kbbb kbbc kbbe kbbk kbbs kbbz kbcb kbce kbck kbcs kbcz kbeb kbec kbee kbek kbes kbez kbkb kbkk kbkz kbsb kbsk kbss kbsz kbzc kbze kbzs kbzz kcbc kcbk kcbs kccb kccc kcck kceb kcec kcee kcez kckc kckk kckz kcsb kcsc kcse kcss kcze kczz kebb kebc kebe keck keek kees kekb kekc keke keks kesb kesc kesk kess kesz kezb keze kezz kkbb kkbe kkbs kkbz kkcb kkck kkcs kkez kkkk kkse kkss kkzz ksbc ksbs ksbz kscb ksce ksck kscs ksec ksee ksek ksez kskb kske kskk ksks kskz ksse ksss kssz kzbb kzbe kzbk kzbs kzbz kzee kzke kzks kzkz kzsb kzsc kzse kzzb kzzk kzzs kzzz sbbs sbcc sbcs sbse sccc scce sccs scec scee sck- scsc se-c se-e se-k se-s se-z sebe sebs sec- secc sece seck secs seeb seec seek sees seez seke sekk sesc sese sess skee skes skss sscc ssce sscs ssec ssee sses sssb sssc ssss szss zbek zebe zeck zeek zees zeke zeks zeze zsss zzzs zzzz