cccc ccci cccs ccee ccic ccii ccis ccix ccsi ccss ccxi cec- cece ceci cecs ceec cees cesc cese cesi cess cexe cicc cici cics ciee cies ciii ciis cis- cisc cise ciss cixi cscc csce csci cscs csec csee csis csix csse cxii cxix cxxi cxxx eccc ecce ecci eces ecis ecsc ecse ecss eecs eeee eees eese eesi eics eiec eiei eies eise eiss esce esci escs esee eses esie esis esse essi exec exes exis iccc icci iccs icec icee ices icex icis icsc icse icsi icss iecc ieie iesc iesi iies iiie iiii iiis iisc iisi iscc isci iscs isec isee ises isic isie isis issc isse issi isss ixxi s-ic s-ii sccc scce sccs scec scee sci- scic scie scis scsc scsi se-c se-e se-i se-s se-x sec- secc sece secs seec sees seex seie seii seis seix sesc sese sesi sess sex- sexe sexi sicc sice sici sics siec sies siex sisc sise sisi siss sixe sixx sscc ssce ssci sscs ssec ssee sses ssex ssis sssc sssi ssss xces xcii xcis xexe xics xiii xisi xixi xxii xxix xxxi xxxx