C11112331312111112111133133313331333133313331312111133121111331323222331   >>    C1111233131211111211113313331333133313331333131211113312111133132322233   <<    C11112331312111112111133133313331333133313331312111133121111331323222333   >>      C11112331312111112111133133313331333133313331312111133121111331323222332   >>