C111123313121111121111331333133313331333132232233131121133131331123222311   >>    C11112331312111112111133133313331333133313223223313112113313133112322231   <<    C111123313121111121111331333133313331333132232233131121133131331123222313   >>      C111123313121111121111331333133313331333132232233131121133131331123222312   >>