C11111333133313232233133313331333132332322121111331311331322123311   >>    C1111133313331323223313331333133313233232212111133131133132212331   <<    C11111333133313232233133313331333132332322121111331311331322123313   >>      C11111333133313232233133313331333132332322121111331311331322123312   >>