C1111133313331323223313331333133313231333132332131333133313331323233212111   >>    C111113331333132322331333133313331323133313233213133313331333132323321211   <<    C1111133313331323223313331333133313231333132332131333133313331323233212113   >>      C1111133313331323223313331333133313231333132332131333133313331323233212112   >>