C11111333133313232233133313331333132313331323321313331333133313232213231311111   >>    C1111133313331323223313331333133313231333132332131333133313331323221323131111   <<    C11111333133313232233133313331333132313331323321313331333133313232213231311113   >>      C11111333133313232233133313331333132313331323321313331333133313232213231311112   >>