C2221333133313331311233132313331333133313331321123231333133112211231   >>    C222133313331333131123313231333133313331333132112323133313311221123   <<    C2221333133313331311233132313331333133313331321123231333133112211233   >>      C2221333133313331311233132313331333133313331321123231333133112211232   >>