C11111333133313232233133313331333133313331312111133133313223313331333132332111   >>    C1111133313331323223313331333133313331333131211113313331322331333133313233211   <<    C11111333133313232233133313331333133313331312111133133313223313331333132332113   >>      C11111333133313232233133313331333133313331312111133133313223313331333132332112   >>