cccc cccs ccee ccss cec- cece cecs ceec cees ceke cesc cese cess ckck ckcs cscc csce cscs csec csee csks csse eccc ecce eces ecsc ecse ecss eecs eeee eees eeke eeks eese eesk ekek ekes esce escs esee esek eses eske esks esse kccc kcck kcec kcee kckc kckk kcsc kcse kcss keck keek kees kekc keke keks kesc kesk kess kkck kkcs kkkk kkse kkss ksce ksck kscs ksec ksee ksek kske kskk ksks ksse ksss sccc scce sccs scec scee sck- scsc se-c se-e se-k se-s sec- secc sece seck secs seec seek sees seke sekk sesc sese sess skee skes skss sscc ssce sscs ssec ssee sses sssc ssss