C11111333133313232233133313331333132332322121111331333131131223321   >>    C1111133313331323223313331333133313233232212111133133313113122332   <<    C11111333133313232233133313331333132332322121111331333131131223323   >>      C11111333133313232233133313331333132332322121111331333131131223322   >>