C111123313121111121111331333133313331333132232233132313113313122332311   >>    C11112331312111112111133133313331333133313223223313231311331312233231   <<    C111123313121111121111331333133313331333132232233132313113313122332313   >>      C111123313121111121111331333133313331333132232233132313113313122332312   >>