C111123313121111121111331333133313331333131121133133313331333133313331211212331   >>    C11112331312111112111133133313331333133313112113313331333133313331333121121233   <<    C111123313121111121111331333133313331333131121133133313331333133313331211212333   >>      C111123313121111121111331333133313331333131121133133313331333133313331211212332   >>