C1111133313331323223313331333133313231333132332131333132313231311233121   >>    C111113331333132322331333133313331323133313233213133313231323131123312   <<    C1111133313331323223313331333133313231333132332131333132313231311233123   >>      C1111133313331323223313331333133313231333132332131333132313231311233122   >>