C11111333133313232233133313331333132332322121111331333131232311111   >>    C1111133313331323223313331333133313233232212111133133313123231111   <<    C11111333133313232233133313331333132332322121111331333131232311113   >>      C11111333133313232233133313331333132332322121111331333131232311112   >>