C1311213331333132332133313331333133313331333133313331333113223213111   >>    C131121333133313233213331333133313331333133313331333133311322321311   <<    C1311213331333132332133313331333133313331333133313331333113223213113   >>      C1311213331333132332133313331333133313331333133313331333113223213112   >>