C11111333133313232233133313331333132313331323321313331333121133111   >>    C1111133313331323223313331333133313231333132332131333133312113311   <<    C11111333133313232233133313331333132313331323321313331333121133113   >>      C11111333133313232233133313331333132313331323321313331333121133112   >>