C2221333133313331311233132313331333133313331321123121111123132323311   >>    C222133313331333131123313231333133313331333132112312111112313232331   <<    C2221333133313331311233132313331333133313331321123121111123132323313   >>      C2221333133313331311233132313331333133313331321123121111123132323312   >>