C11112331312111112111133133313331333133313331333133313331333131132311211   >>    C1111233131211111211113313331333133313331333133313331333133313113231121   <<    C11112331312111112111133133313331333133313331333133313331333131132311213   >>      C11112331312111112111133133313331333133313331333133313331333131132311212   >>