C11112331312111112111133133313331333133313331333133313331333132322232131211   >>    C1111233131211111211113313331333133313331333133313331333133313232223213121   <<    C11112331312111112111133133313331333133313331333133313331333132322232131213   >>      C11112331312111112111133133313331333133313331333133313331333132322232131212   >>