C111123313121111121111331333133313331323232133313331333133313113313331131233231   >>    C11112331312111112111133133313331333132323213331333133313331311331333113123323   <<    C111123313121111121111331333133313331323232133313331333133313113313331131233233   >>      C111123313121111121111331333133313331323232133313331333133313113313331131233232   >>