C2221333133313331311233132313331333133313331323321111331322123231211   >>    C222133313331333131123313231333133313331333132332111133132212323121   <<    C2221333133313331311233132313331333133313331323321111331322123231213   >>      C2221333133313331311233132313331333133313331323321111331322123231212   >>