C111123313121111121111331333133313331333132232233133313311232231   >>    C11112331312111112111133133313331333133313223223313331331123223   <<    C111123313121111121111331333133313331333132232233133313311232233   >>      C111123313121111121111331333133313331333132232233133313311232232   >>