C111123313121111121111331333133313331323231333133313133313121111331312233231   >>    C11112331312111112111133133313331333132323133313331313331312111133131223323   <<    C111123313121111121111331333133313331323231333133313133313121111331312233233   >>      C111123313121111121111331333133313331323231333133313133313121111331312233232   >>