C2221333133313331311233132313331333133313331323321111331312213121   >>    C222133313331333131123313231333133313331333132332111133131221312   <<    C2221333133313331311233132313331333133313331323321111331312213123   >>      C2221333133313331311233132313331333133313331323321111331312213122   >>