C11112331312111112111133133313331333132212111133133313331323321111   >>    C1111233131211111211113313331333133313221211113313331333132332111   <<    C11112331312111112111133133313331333132212111133133313331323321113   >>      C11112331312111112111133133313331333132212111133133313331323321112   >>